求大神指点，杭电acm1004为什么我的结果是Wrong Answer！

Question

/*
Problem Description
Contest（比赛） time again! How excited it is to see balloons floating around.
But to tell you a secret, the judges' favorite time is guessing the most popular problem.
When the contest is over, they will count the balloons of each color and find the result.
This year, they decide to leave this lovely job to you.
Input
Input contains multiple（多个） test cases.
Each test case starts with a number N (0 < N <= 1000)
-- the total number of balloons distributed（分布）.
The next N lines contain one color each.
The color of a balloon is a string of up to 15 lower-case letters.
A test case with N = 0 terminates（终止） the input
and this test case is not to be processed（处理）.
Output
For each case, print the color of balloon for the most popular problem on a single line.
It is guaranteed（保证） that there is a unique solution for each test case.
Sample Input
5
green
red
blue
red
red
3
pink
orange
pink
0
Sample Output
red
pink
*/
#include <stdio.h>
#include <string.h>
#define MAX 100
int main(int argc, char *argv[])
{
int n;
int i,j;
int zs[MAX];
char str[MAX][16];
while(scanf("%d",&n)!=EOF)
{
if(n==0)
break;
for(i=0;i<MAX;i++)
{
zs[i]=0;
}
for(i=0;i<n;i++)
{
scanf("%s",str[i]);
}
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
if(strcmp(str[i],str[j])==0)
{
zs[i]++;
}
}
}
for(i=0;i<n;i++)
{
for(j=i;j<n;j++)
{
if(zs[i]<zs[j])
{
i=j-1;
break;
}

}
if(j==n)
break;
}
printf("%s\n",str[i]);
}
return 0;
}

Answer 1

#include <stdio.h>
#include <string.h>
#define MAX 1000

typedef struct balloons {
char color[16];
int count;
}balloons;

int main(int argc, char *argv[]) {
int T,n,m,i,j,flag;
balloons a[MAX] = {"",0};
char blln[16];
scanf("%d",&T);
while(T--) {
m = 0;
scanf("%d",&n);
for(i = 0; i < n;i++) {
scanf("%s",blln);
flag = 1;
for(j = 0; j < m && flag; ++j) {
if(strcmp(a[j].color,blln) == 0) {
++a[j].count;
flag = 0;
}
}
if(flag == 1) {
strcpy(a[m].color,blln);
a[m].count = 1;
++m;
}
}
for(i = j = 0; i < m; i++) {
if(a[i].count > a[j].count)
j = i;
}
printf("%s\n",a[j].color);
}
return 0;
}

追问

其实我是想让您分析分析我的代码出问题的地方，而不是让你粘贴一大堆代码放这-_-b要看人家的代码我自己也可以在网上搜到