#include<stdio.h>
#include<string.h>
#include<malloc.h>
void main()
{
    char *p1, *p2;
    int i, j, n = 0, leng;
    p1 = (char *)malloc(100);
    p2 = (char *)malloc(100);
    scanf("%s%s", p1, p2);
    printf("%s\t%s\n", p1, p2);
    while (*p1 != *p2 && *p1 != '\0')
        --------;

    leng = strlen(p2);
    while (*p2 != '\0' && *p1 != '\0')
    {
        if (*p1 == *p2)
            ----------;
        p1++;
        p2++;
    }
    printf("n=%d  leng=%d\n", n, leng);
    if (--------------)
        printf("yes\n");
    else
        printf("no\n");
    free(p1);free(p2);

}

i和j似乎没有用上  这个是研究生考试题  而且这样调试出来的程序要是主串中有重复的字符串就会出错