Từ Trường THPT Gia Định, TP.HCM

Thông tin

#include <bits/stdc++.h>
using namespace std;

#if defined(ONLINE_JUDGE) || defined(THEMIS)
    #define file(s) (freopen(#s".inp", "r", stdin), freopen(#s".out", "w", stdout))
#else
    #define file(s)
#endif

#define fastio ios_base::sync_with_stdio(false), cin.tie(NULL)
#define ll long long

int main() {
    fastio; 
}

Huy hiệu