제출 #1146409

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1146409		KluydQ	Weighting stones (IZhO11_stones)	C++17	0 / 100	1 ms	320 KiB

stones

#include <bits/stdc++.h>

#define FOR( i, x, n, d ) for( int i = x; i <= n; i += d )
#define int long long

using namespace std;
const int N = 1e5;

signed main()
{
  freopen("stones.in", "r", stdin);
  freopen("stones.out", "w", stdout);
  
	ios_base::sync_with_stdio(0), cin.tie(0);
	
	int n, sum1 = 0, sum2 = 0, max1 = 0, max2 = 0;
	cin >> n;
	
	FOR( i, 1, n, 1 )
	{
		int x, tp; cin >> x >> tp;
		
		if( tp == 1 )
		{
			sum1 += x + 1e12;
			max1 = max( max1, x );
		}
		if( tp == 2 )
		{
			sum2 += x + 1e12;
			max2 = max( max2, x );
		}
		if( max1 > max2 )
		{
			if( sum2 >= sum1 ) cout << "?";
			else cout << ">";
		}
		if( max2 > max1 )
		{
			if( sum1 >= sum2 ) cout << "?";
			else cout << "<";
		}
		cout << '\n';
	}
}

컴파일 시 표준 에러 (stderr) 메시지

stones.cpp: In function 'int main()':
stones.cpp:11:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |   freopen("stones.in", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
stones.cpp:12:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |   freopen("stones.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100