题解（A23954.ZXC的超市促销）

C版：
#include<iostream>
using namespace std;
int main(){
int n,a[110] = {0},id = 1;
cin >> n;
for(int i = 1;i <= n;i){
int t;
cin >> t;
a[t];
}
for(int i = 2;i <= 100;i){
if(a[i] > a[id]) id = i;
}
cout << id;
return 0;
}