HDU_1029 Ignatius and the Princess IV

#include <stdio.h>
#include <string.h>
#define N 100007
int hash
;
int main()
{
int n, i, a;
while(scanf("%d", &n) != EOF)
{
memset(hash, 0, sizeof(hash));
int max = -1;
while(n--)
{
scanf("%d", &a);
if(a > max) max = a;
hash[a]++;
}
int num = -1, flag;
for(i = 1; i <= max; i++)
if(hash[i] > num)
{
num = hash[i];
flag = i;
}
printf("%d\n",flag);
}
return 0;
}