ZOJ-2947

#include<stdio.h>#include<stdlib.h>#include<string.h>int main(){    int n;    scanf("%d", &n);    while (n--)    {        int a, b;        char *s1, *s2, s[10];        scanf("%d", &a);        s1 = (char *) malloc(a + 1);        *(s1 + a) = '\0';        while (a--)        {            scanf("%s", s);            *(s1 + a) = s[0];        }        scanf("%d", &b);        s2 = (char *) malloc(b + 1);        *(s2 + b) = '\0';        while (b--)        {            scanf("%s", s);            *(s2 + b) = s[0];        }        printf(strcmp(s1, s2) ? "DIFFERENT\n" : "SAME\n");        free(s1);        free(s2);    }    return 0;}