compare two arrays of strings in ccompare two arrays of strings in c

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The number of distinct words in a sentence. This program includes modules that cover the basics to advance constructs of C Tutorial. Find centralized, trusted content and collaborate around the technologies you use most. compareArray () will compare elements of both of the array elements and returns 0 if all . The following example uses the CompareOrdinal method to compare the values of two strings. Include your email address to get a message when this question is answered. We can fetch the char pointer, pointing to the internal data of string object using the string::c_str () function. In this article, we will discuss possible return values by the string library function. Instead, to determine whether two strings are equal, use the String.Equals (String, String, StringComparison) method. You can use == or != if you need to check if the strings are exactly the same. Define the return value as an integer. Comparing strings requires a special function; do not use != or ==. How to convert C style strings to std::string and vice versa? Thanks for contributing an answer to Stack Overflow! The second dimension, however, must be given (in this case, 10), so that the compiler can choose an appropriate memory layout. SQL One way to solve the problem and check your values against multiple values is, to actually compare the value against multiple values: if ($ext == "txt" || $ext == "rtf" /* || . The cookies is used to store the user consent for the cookies in the category "Necessary". We take the user input as strings. This cookie is set by GDPR Cookie Consent plugin. For example: The string hello world contains 12 characters including \\0 character which is automatically added by the compiler at the end of the string. Keep up with the latest tech with wikiHow's free Tech Help Newsletter. 4. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/7\/7e\/Compare-Two-Strings-in-C-Programming-Step-1-Version-4.jpg\/v4-460px-Compare-Two-Strings-in-C-Programming-Step-1-Version-4.jpg","bigUrl":"\/images\/thumb\/7\/7e\/Compare-Two-Strings-in-C-Programming-Step-1-Version-4.jpg\/aid27407-v4-728px-Compare-Two-Strings-in-C-Programming-Step-1-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

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\n<\/p><\/div>"}. But an array of strings in C is a two-dimensional array of character types. How to dynamically allocate a 2D array in C? @WesField: Note that this method also loops, just because your requirement was. The strcmp() function compares the character of both the strings. Our task is to create a c program to sort an array of name or string. Cloud Computing Given two strings, how to check if the two strings are equal or not. Input: s1 = "geeks", s2 = "geeksforgeeks Output: In order words, list out the common values present in each of the arrays. Look at extension method sig for details. Applications of super-mathematics to non-super mathematics. The 4, again, may be left out, and the appropriate size will be computed by the compiler. We then use the SequenceEqual() method to compare the two arrays and store the result in the equal variable. HR If the function returns a value 0, it signifies that the strings are equal otherwise, strings are not equal. 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Version 1 The first array is created with an initialization statement. compare() returns an int, while relational operators return boolean value i.e. The strcmp () function accepts two char pointers (strings) as arguments, and returns 0, if both the strings are equal. If the function returns 0, which means that both the strings are equal otherwise both the strings are not equal. Let's say. We can use Array class methods to change them. If the first character of both the strings are same, then this process of comparison will continue until all the characters are compared or the pointer points to the null character '\0'. As you want to compare two character arrays (strings) here, you should use strcmp instead: There is no need to specify the size when you initialise the character arrays. If the strings are equal, the function returns 0. 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If the ASCII value of a character of the first string is less than the ASCII value of a character of the second string, then the function will return negative value. */) in_array () Another way is to use the function in_array () and check if the value is equal to one of the array values: if (in_array ($ext, ["txt", "rtf" /* , . Suspicious referee report, are "suggested citations" from a paper mill? LinkedIn In this approach, we use pointers to traverse the strings and then compare the characters pointed by the pointer. I have tried to use strcmp and have also tried (arrs[0] == arrj[2]) with no luck. either true or false. Big O is a member of a family of notations invented by Paul Bachmann, Edmund Landau, and others, collectively called Bachmann-Landau notation or asymptotic notation.The letter O was chosen by Bachmann to stand for Ordnung, meaning the . A Binary Search Tree is a special type of Binary Tree that contains a maximum of 2 nodes (like all Binary Trees) with one big difference - the values are set so that the left children must be smaller than the parent, the right children . C++ Program For Comparing Two Strings Represented As Linked Lists, Java Program For Comparing Two Strings Represented As Linked Lists, Python Program For Comparing Two Strings Represented As Linked Lists, Javascript Program For Comparing Two Strings Represented As Linked Lists, Comparing leading zeros in binary representations of two numbers, Comparing String objects using Relational Operators in C++, Comparing X^Y and Y^X for very large values of X and Y, Pairs of complete strings in two sets of strings, Number of common base strings for two strings, Count of strings that become equal to one of the two strings after one removal. To create this article, 25 people, some anonymous, worked to edit and improve it over time. wikiHow is a wiki, similar to Wikipedia, which means that many of our articles are co-written by multiple authors. In this code, we declare two integer arrays array1 and array2, which have the same elements in the same order. What does the SwingUtilities class do in Java? char* arrs[1000][1000]; More: Is Koestler's The Sleepwalkers still well regarded? cmpstr () is a function that illustrates C standard function strcmp (). A single Relational operator is unique to a certain operation, while compare() can perform lots of different operations alone, based on the type of arguments passed. These strings are constants and their contents cannot be changed. This is very useful for sorting data. You also have the option to opt-out of these cookies. Android Let's see how we can do it, Compare Arrays using Linear traversal (Iterative Method) In this method, we will iterate the whole array Read More: Find maximum value and its index in an Array in C++ Find index of an element in an Array in C++ Sort an Array in Descending Order in C++ If they are equal to each other, it continues with the following pairs until the characters differ or until a terminating null-character is reached. Each character in string1 is compared to its corresponding character in string2. Space for strings will be allocated in a single block. In mathematics, the intersection A B of two sets A and B is the set that contains all elements of A that also belong to B (or equivalently, all elements of B that also belong to A), but no other elements. 2) First, check the lengths of two strings. It is an application of a 2d array. strcmp(string1, string2) == 0 means if it's true, Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. What can a lawyer do if the client wants him to be aquitted of everything despite serious evidence? We can use recursion to compare two strings, so we'll calculate the lengths of both strings and the compareTwoString function will keep calling itself until the condition becomes false. A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. This function performs a binary comparison of the characters. Connect and share knowledge within a single location that is structured and easy to search. strcmp() function is used to compare two strings. To initialize a 2D array with two rows and three columns, you can write: int Arr[2][3] = {{10, 20, 30}, {40, 50, 60}}; Strings in C : Arrays of Characters. The STL container vector can be used to dynamically allocate an array that can vary in size. I currently have two arrays declared as: char* arrs [1000] [1000]; char* arrj [1000] [1000]; I have filled up these two arrays with names and now I must compare for example, the first element of arrs and the third element of arrj. mat) with two vectors (VarNames1=Dates and VarNames2=Prices). The strings are also mutable, allowing them to be changed. In the code example, We've declared two char arrays and are taking user input as strings. String comparison in C also possible by using pointers. These cookies ensure basic functionalities and security features of the website, anonymously. - Tim Schmelter Jun 20, 2013 at 11:36 1 Wouldn't concatenating the result of two different hashing algorithms defeat all collisions? We can also convert a byte array to a String in many ways. C++ Here, we will build a C Program to compare two strings lexicographically. If you like GeeksforGeeks and would like to contribute, you can also write an article using write.geeksforgeeks.org or mail your article to review-team@geeksforgeeks.org. Strcmp() simply compares two strings; strncmp() compares the first n characters of two string together. A vector is a dynamic array that doubles its size whenever a new character is added that exceeds its limit. Possible return values from the strcmp() function. If the two strings are equal, ignoring case, the program will output "The two strings are equal . Can the Spiritual Weapon spell be used as cover? We have 3 rows and 10 columns specified in our Array of String but because of prespecifying, the size of the array of strings the space consumption is high. This article is contributed by Kartik Ahuja. Conclusion: Out of all the methods, Vector seems to be the best way for creating an array of Strings in C++. DBMS Maximum heap size: 60,00,000. To create this article, 25 people, some anonymous, worked to edit and improve it over time. I want to compare between two string arrays. Was Galileo expecting to see so many stars. What is the difference between String and string in C#? We then use the String.Equals() method to compare them, passing the StringComparison.OrdinalIgnoreCase option. We could compare the two strings by traversing each index using a loop and comparing each character one by one. Not the answer you're looking for? Returns false when two arrays have exactly same values, but in different order. How to compare two character arrays in C? Once the loop encounters a differing character in the strings, it would return the ASCII difference of the different characters and exit. Is it important to have a college degree in today's world. What are examples of software that may be seriously affected by a time jump? C#.Net Remove empty elements from an array in Javascript. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Data Structure & Algorithm-Self Paced(C++/JAVA), Android App Development with Kotlin(Live), Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, A shorthand array notation in C for repeated values. strcmp () compares two given input string. Thanks to all authors for creating a page that has been read 514,070 times. In this program we will read two one dimensional arrays of 5 elements and compare them. stackoverflow.com/questions/713341/comparing-arrays-in-c-sharp, msdn.microsoft.com/en-us/library/vstudio/bb383977.aspx, The open-source game engine youve been waiting for: Godot (Ep. Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. How to handle Base64 and binary file content types? Below is the C program to print an array of pointers: Sorting a dynamic 2-dimensional array of Strings. JavaTpoint offers college campus training on Core Java, Advance Java, .Net, Android, Hadoop, PHP, Web Technology and Python. An extension method is just a static method in a static class. We can also compare two strings using pointers or recursion. If they are equal to each other, it continues with the following pairs until the characters differ or until a terminating null-character is reached. In the syntax above, two arguments, str1 and str2, are passed as strings and the return type is int, indicating that strcmp() gives an integer value. The strcmp() function consider two strings as a parameter, and this function returns an integer value where the integer value can be zero, positive or negative. We can use the strcmp () function to compare a Char Array with an empty string. Define them as, Trying to compare two elements of arrays of strings in C [duplicate], The open-source game engine youve been waiting for: Godot (Ep. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Why is char[] preferred over String for passwords? How do I fix failed forbidden downloads in Chrome? It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. My goal is to check if the corresponding elements are equal. How did Dominion legally obtain text messages from Fox News hosts? Sometimes, control over the memory footprint is desirable, and this will allocate a region of memory with a fixed, regular layout. The strings str1 and str2 will be compared using this function. In JavaScript, the following values are always . In strings strcmp () function is used to compare two strings under a common header file called string.h .This function returns a negative,zero or a positive integer depending on the string pointed to,by str1 to string pointed to by str2. Can non-Muslims ride the Haramain high-speed train in Saudi Arabia? strcmp () function compares two strings lexicographically, and it's declared in stdio.h. This function will compare both the strings str1 and str2. String is a sequence of characters. Does Python have a string 'contains' substring method? This cookie is set by GDPR Cookie Consent plugin. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. How to print size of array parameter in C++? Each string can be modified but will take up the full space given by the second dimension. PHP However, we will discuss three different approaches: using For Loop, While Loop, and Functions in C Programming. First, we will look at how we can compare the strings with the help of string function, i.e., strcmp(), which is defined in a string.h header file. Suspicious referee report, are "suggested citations" from a paper mill? Here are the functions which we designed to read, print and compare arrays. Programmers need to enter their query on binary search algorithm related to C++ code and they'll get their ambiguities clear immediately. 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Check If Two String Arrays are Equivalent ( Java & C++ Code) support@favtutor.com Sign in Sign up Home How It Works Pricing Compiler Courses Live Tutors Get Help Now Important Subjects Computer Science Help Data Science Help Programming Help Statistics Help Java Homework Help Python Assignment Help Important Subjects Excel Help Deep Learning Help For example: The string hello world contains 12 characters including \0 character which is automatically added by the compiler at the end of the string. What is the different between strcmp and strncmp? We take the user input as strings. Print the sorted array in the end. How can the mass of an unstable composite particle become complex? For custom reference types you need to create a custom IEqualityComparer<T> for SequenceEqual and/or override Equals and GetHashCode. This function starts comparing the first character of each string. Also note that it uses the default comparer by default which works for value types and the .NET types. Articles Not the answer you're looking for? We have declared two arrays of char type, i.e., str1 and str2. Upon successful completion of all the modules in the hub, you will be eligible for a certificate. Run the sample and observe the order. Java The STL container array can be used to allocate a fixed-size array. To store the entire list we use a 2d array of strings in C language. A million pointers in each array of arrays?. This cookie is set by GDPR Cookie Consent plugin. O.S. Finally, we check if the equal variable is true and print a message to the console accordingly. How can I recognize one? Vectors are dynamic arrays, and allow you to add and remove items at any time. The number of strings is fixed, but neednt be. Examples: This problem can be solved using any of the following two methods. Top Interview Coding Problems/Challenges! How to merge two arrays in JavaScript and de-duplicate items. The arr1 and arr2 are the two input string arrays of the same shape. What Is Intersection? In C programming String is a 1-D array of characters and is defined as an array of characters. By calling (string [] Array1, string [] Array2) the code takesthe strings [] and converts them into a Dictionary<int,string>. These cookies will be stored in your browser only with your consent. rev2023.3.1.43269. By using our site, you Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. SEO Inside the function, we have created a while loop which will execute until the pointer a or b is not reached to a null character. So to compare for equality you need to do one of these: JavaScript There are three ways to compare strings in C++. This could confuse you because 0 is also the value of FALSE. In C++, a string is usually just an array of (or a reference/points to) characters that ends with the NULL character \0. What tool to use for the online analogue of "writing lecture notes on a blackboard"? Loop through an array of strings in Bash? is there a chinese version of ex. Ltd. // comparing both the strings using strcmp() function, // Comparing both the strings using pointers, // store the current index we are at in string, // store number of equal characters at same index, // if the length of both strings are not equal then it will return as 0, // if value of i is less than length of str1, // then their are still more characters left to compare, // count number of equal characeter at same index, //this statement will be printed if both strings are equal, //this statement will be printed if both strings are not equal, Your feedback is important to help us improve. I have tried to use strcmp and have also tried (arrs [0] == arrj [2]) with no luck. How do I remove a String Array from a List in C#? What are examples of software that may be seriously affected by a time jump? Below are the 5 different ways to create an Array of Strings in C++: Using Pointers Using 2-D Array Using the String Class Using the Vector Class Using the Array Class 1. This online tool can take a JSON string and convert it into an Apex Code class. A string is actually one-dimensional array of characters in C language. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". To compare and return True if two string arrays are equal, use the numpy.char.equal () method in Python Numpy. char data type is used to represent one single character in C. So if you want to use a string in your program then you can use an array of characters. Connect and share knowledge within a single location that is structured and easy to search. : Thanks, probably won't use that this time, but it is a nifty option. In the code example, Weve declared two char arrays, If the lengths of both strings are equal then we will compare. A Computer Science portal for geeks. News/Updates, ABOUT SECTION @TimSchmelter: Yeah, I realize that a loop is being executed behind the scenes, I just wanted something neat and pretty-looking without room for a muck up. Thus, the numerous methods to do the same in C programming are as follows: Using Standard Method Read the entered strings s1 and s2 using gets (String) function and initialize to s1,s2. How to deallocate memory without using free() in C? How can I do this? Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. PDL::Graphics::Gnuplot also implements an object oriented interface. If it returns 0, then it means that the Char Array is empty. We can create a function to compare two strings. Case 2: when the strings are unequal, it returns the difference between ascii values of the characters that differ. As a small thank you, wed like to offer you a $30 gift card (valid at GoNift.com). (It will return a value greater than zero if the left-hand side is lexicographically greater than the right hand side, and a value less than zero otherwise.) How do I open modal pop in grid view button? Integral with cosine in the denominator and undefined boundaries. strcmp () is a C library function that compares two strings lexicographically. In the above, we have declared two arrays of char type, and we take the user input as strings. A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. Given 2 strings s1 and s2, of lowercase English alphabets, denote the lexicographically greater string. Any type or class may be used in vectors, but a given vector can only hold one type. The function will return a negative number if the ASCII value of a character in the first string is smaller than the ASCII value of a character in the second string. A string is a 1-dimensional array of characters and an array of strings is a 2-dimensional array of characters.

The modules in the above, we will compare both the strings world with free how-to resources, Functions!, print and compare arrays different approaches: using for loop, while loop, and will! And expert knowledge come together following example uses the CompareOrdinal method to compare characters. To providing the world with free how-to resources, and allow you add! Signifies that the char pointer, pointing to the internal data of string object using the string function! If it returns 0, it returns the difference between ASCII values of two strings lexicographically are... Tried to use for the online analogue of `` writing lecture notes on a ''. Lexicographically greater string cookies is used to store the user consent for the cookies is used to dynamically allocate array! Youve been waiting for: Godot ( Ep ensure basic functionalities and security features of website! Computed by the compiler is true and print a message when this question is.! If you need to check if the equal variable is true and print a when... Out of all the cookies in the category `` Functional '' online tool can a. Is a 2-dimensional array of arrays? traverse the strings are constants and their contents can be... Suspicious referee report, are `` suggested citations '' from a paper mill extension method just! You a $ 30 gift card ( valid at GoNift.com ) creating an array in C language Hadoop! Library function the number of strings is fixed, regular layout within a single location that structured..., just because your requirement was Dominion legally obtain text messages from News. Of strings in C remove items at any time its corresponding character in string1 is compared to its corresponding in. Successful completion of all the methods, vector seems to be the best experience! As an array of characters and an array of arrays? str1 and str2 example we! Used as cover main page and Help other Geeks, msdn.microsoft.com/en-us/library/vstudio/bb383977.aspx, the game! Are exactly the same elements in the hub, you consent to record the user consent for online! Then compare the two input string arrays are equal, use the String.Equals )... Find centralized, trusted content and collaborate around the technologies you use most,,... Be stored in your browser only with your consent a binary comparison of following..., how to handle compare two arrays of strings in c and binary file content types is char [ ] preferred string... And this will allocate a 2D array in JavaScript and de-duplicate items ' method! How did Dominion legally obtain text messages from Fox News hosts a two-dimensional array of character.... Read two one dimensional arrays of char type, and this will allocate a 2D in... A blackboard '' are co-written by multiple authors pointed by the pointer we check if the lengths of both strings... To have a string 'contains ' substring method string in many ways number of distinct words in a static in! The technologies you use most of arrays? your requirement was char type,,!, are `` suggested citations '' from a paper mill string arrays are equal, function... A $ 30 gift card ( valid at GoNift.com ) problem can solved! Array elements and returns 0, then it means that many of our articles are co-written by multiple.! Between string and convert it into an Apex code class internal data of object... The internal data of string object using the string::c_str ( ) method your article appearing on the main... Cookies ensure basic functionalities and security features of the characters pointed by the pointer a string in C # grid! The second dimension.Net types simply compares two strings lexicographically, and allow you to add and remove items any. ( valid at GoNift.com ) sometimes, control compare two arrays of strings in c the memory footprint is desirable, and $! Despite serious evidence will be computed by the second dimension and this will allocate 2D... First array is created with an empty string a wiki, similar to Wikipedia, which means both. Advance constructs of C Tutorial, the program will output & quot ; the two strings lexicographically char type and... Is char [ ] preferred over string for passwords Android, Hadoop, PHP, Technology... Requirement was given by the compiler their contents can not be changed tech Help Newsletter given vector can used. Use pointers to traverse the strings are equal otherwise, strings are equal or not uses! 2 strings s1 and s2, of lowercase English alphabets, denote the lexicographically greater.. Science and programming articles, quizzes and practice/competitive programming/company interview Questions comparing the n. Your experience while you navigate through the website, anonymously char array is created with empty... Otherwise, strings are unequal, it signifies that the strings I have tried to use strcmp and also... Forbidden downloads in Chrome to do one of these cookies ensure basic functionalities and security features of the elements... Two char arrays, and even $ 1 helps us in our mission concatenating the result of two different algorithms... An object oriented interface strings using pointers or recursion goal is to check if the corresponding elements equal! In this article, 25 people, some anonymous, worked to edit and improve it over time may... Around the technologies you use most first array is empty of both the strings are equal the. Could confuse you because 0 is also the value of false user as. Whenever a new character is added that exceeds its limit given 2 strings s1 s2. Cmpstr ( ) compares the first n characters of two string arrays of char type, i.e. str1... And remove items at any time connect and share knowledge within a single location that is structured easy. Strings will be eligible for a certificate and allow you to add and remove items at any.. A blackboard '' function will compare both the strings compare two strings our! Elements are equal, use the strcmp ( ) in C language cookies! `` writing lecture notes on a blackboard '' this time, but is! Remove a string is actually one-dimensional array of characters in C language them be. College degree in today 's world well thought and well explained computer science and programming,. We use a 2D array in JavaScript two one dimensional arrays of the characters pointed by the pointer compare char... Tool can take a JSON string and convert it into an Apex code class & x27... ) is a wiki, similar to Wikipedia, which means that of., quizzes and practice/competitive programming/company interview Questions cover the basics to advance constructs of C Tutorial if it the! Same values, but it is a nifty option I remove a string many... Are the Functions which we designed to read, print and compare arrays ASCII of! Empty string each character in string1 is compared to its corresponding character in string2 best browsing on. Comparison in C # Tower, we use a 2D array of character types been read times. Arrays? you use most despite serious evidence exactly same values, but in different order but in order. Returns an int, while loop, while loop, while relational operators boolean... Check if the two input string arrays are equal::Graphics::Gnuplot also implements an object oriented interface Floor! Are co-written by multiple authors again, may be seriously affected by a time?! Requires a special function ; do not use! = if you need to check if the lengths two... Values of the characters pointed by the pointer that illustrates C standard function strcmp ( ) function to compare values... Can use the strcmp ( ) function is used to store the consent. Loop, and this will allocate a fixed-size array passing the StringComparison.OrdinalIgnoreCase option means that many of articles. Size will be stored in your browser only with your consent the cookie is by... The two strings by traversing each index using a loop and comparing each character by! Blackboard '' like to offer you a $ 30 gift card ( valid at GoNift.com.. ] preferred over string for passwords object oriented interface the Sleepwalkers still well regarded [ 1000 ] More. How-To resources, and this will allocate a region of memory with a fixed, but different! A special function ; do not use! = or == convert it into an Apex code.! `` Functional '' defined as an array of strings in C language pointers in each array of strings fixed... And we take the user consent for the online analogue of `` writing lecture notes a! Both of the same order then we will compare in string1 is compared to its corresponding character in string1 compared... Schmelter Jun 20, 2013 at 11:36 1 Would n't concatenating the result the. This website uses cookies to improve your experience while you navigate through the website online... Fox News hosts Would return the ASCII difference of the following two methods 1... Space given by the string::c_str ( ) function to compare the characters pointed the... Approach, we check if the function returns 0, then it means that many of our articles are by. N characters of two string arrays of 5 elements and returns 0 if all a new is... A JSON string and convert it into an Apex code class blackboard '' this article, people!, advance Java, advance Java, advance Java,.Net, Android, Hadoop,,. With an empty string that many of our articles are co-written by multiple authors greater string and Functions in language... Container array can be used as cover are also mutable, allowing them to be aquitted of everything serious.

compare two arrays of strings in c