Anagram in C

by Online Tutorials Library July 14, 2022

Anagram in C

This section will discuss the anagram and its program to check whether the given string is the Anagram or not. An anagram of a string is a string that contains the same characters in both the strings, except the order of characters can be different in the strings. In other words, anagrams are a technique of C programming that checks whether a given string contains the same number of characters, except that the sequence of characters can be changed in both strings.

For example, suppose we have two strings: “CAB” and “ABC”. Both contain the same characters in these strings, but the arrangements of the first strings’ characters are different from the second strings, and the process is termed the anagram of strings.

Algorithm of the Anagram string

Following are the algorithms of the anagram string in C, as follows:

Input two strings from the user.
Check the length of each string. If the length of the first string is not equal to the second string, the strings are not an anagram.
If the length of both strings is equal, convert the string’s characters into lower case letters that make the comparison of the string easier.
After this, sort the characters of the strings using the built-in function of the C library to sort the strings. And if there is no built-in function, we convert the string to a character array.
We must sort the converted string into a character array.
And last, we check for the equality of the strings.

Example 1: Program to check the anagram of the string using user-defined function

  #include     // function definition  int get_anagrm (char [],char []);      int main ()  {  // declaration of the array  char arr1 [50], arr2 [50];  int count;    printf (” Enter the first string: n “);  scanf (” %s”, arr1);      printf (” Enter the second string: n “);  scanf (” %s”, arr2);    // call function  count = get_anagrm (arr1, arr2);    // use if-else statement to validate both strings are anagram or not.    if (count == 1)  {  printf (” %s and %s strings are an anagram of each other. n”, arr1, arr2);  }  else  {  printf (” %s and %s strings are not an anagram of each other. n”, arr1, arr2);  }    return 0;  }      // function defnition  int get_anagrm (char arr1[], char arr2[])  {  // create two num arrays and initialize their value as 0  int num1[20] = {0}, num2[20] = {0}, i = 0;    // use while loop to check arr1 is not null  while (arr1[i] != ‘

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