6(i)

#include <stdio.h>
int main()
{
    char ch[50], find;
    int count = 0;
    printf("Enter a string: ");
    gets(ch);
    printf("Enter a character for finding frequency: ");
    scanf("%c", &find);
    for (int i = 0; ch[i] != '\0'; ++i) {
        if (find == ch[i])
            count++;
    }
    printf("Frequency of %c = %d", find, count);
    return 0;
}