C Programming. Printing the occurrence of each alphabet in the text entered as command line arguments.

Printing the occurrence of each alphabet in the text entered as command line arguments.

// Program that prints a table indicating

// occurrence of each alphabet in the text entered as command line arguments.

#include<stdio.h>

#include<string.h>

int main(int argc, char **argv) {

    char s[100];

    strcpy(s, argv[1]);

    int n = strlen(s);

    int count;

    printf("Occurrence of each alphabet in given string \"%s\" is :\n");

    for (int i=0; i<n; i++){

        count = 1;

        if (s[i] >= 'A' && s[i]<='Z' || s[i] >= 'a' && s[i]<='z') {

            if (s[i]!='\0'){

                for (int j=i+1; j<n; j++){

                    if (s[i]==s[j]){

                        count++;

                        s[j]='\0';

                    }

                }

                printf("'%c' = %d\n", s[i], count);

            }

        }

    }

    return 0;

}

Output :

filename.exe "Hello World" Occurrence of each alphabet in given string "Hello World" is : 'H' = 1 'e' = 1 'l' = 3 'o' = 2 'W' = 1 'r' = 1 'd' = 1