Find Number Of Occurrences Of a Character In a String C Program

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This program will find out the number of occurrences of each character in a string. So for example, if we have a string "I AM" then here the frequency of occurrence of each of 'I','A','M' will be 1. The program will print the same. This code can be easily modified to account for uppercase characters separately. 

Here is the C Code to find the number of occurrences of a character in a string:

/* Double-Click To Select Code */
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
   char string[100];
   int c = 0, count[26] = {0};
 
   printf("Enter a string\n");
   gets(string);
 
   while (string[c] != '\0')
   {
      if (string[c] >= 'a' && string[c] <= 'z') 
         count[string[c]-'a']++; 
      c++;
   }
 
   for (c = 0; c < 26; c++)
   { 
      if (count[c] != 0)
         printf("%c occurs %d times in the entered string.\n",c+'a',count[c]);
   }
}

Output:

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