main ( )
{
    char s1[6] = “abcde ”;
    int cnt = 0;
    cnt = cnt_str(s1);    \\ A
            printf( “ total characters are %d \n”, cnt);
}
int cnt_str(char s1[]);    \\ B
{
    int cn = 0;
            while ( (cn < 6) && s1[cn]! = ‘\0’)
    cn++;
    return(cn);
}