Question

How to print the use of different characters (letters) in a string in C

Answer 1

#include <stdio.h>

int main(void) {
    char str[] = "c programming language";
 
    int count = 0;
    int strsize = strlen(str);
    for (char ch = 'a'; ch <= 'z'; ch++ ) {
        for (int i = 0; i < strsize; i++ ) {
            if (ch == str[i]) {
                printf("%c ", ch);
                count++;
                break;
            }
        }
    }
        
    printf("\nTotal number of different characters are: %d", count);

    return 0;
}
   
   
 
   
/*
run:
   
a c e g i l m n o p r u 
Total number of different characters are: 12
   
*/

 

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