제출 #1079846

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1079846		quangminh412	Room Temperature (JOI24_ho_t1)	C++14	5 / 100	1 ms	472 KiB

Main

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

/*
  John Watson
  https://codeforces.com/profile/quangminh98

  Mua Code nhu mua Florentino !!
*/

#define faster() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define ll long long

const int maxn = 5e5 + 9;

int n, t;
int arr[maxn];

signed main()
{
	if (fopen("test.inp", "r"))
	{
		freopen("test.inp", "r", stdin);
		freopen("test.out", "w", stdout);
	}
	faster();

	cin >> n >> t;
	for (int i = 1; i <= n; i++) cin >> arr[i];
	
	if (t == 1)
	{
		cout << 0 << '\n';
		return 0;
	}
	if (arr[1] > arr[2]) swap(arr[1], arr[2]);
	int diff = (arr[2] - arr[1]) / t;
	
	cout << min({abs(arr[1] - (arr[2] - t * diff)), abs(arr[1] - (arr[2] - t * (diff - 1))), abs(arr[1] - (arr[2] - t * (diff + 1)))});

	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:23:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |   freopen("test.inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:24:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |   freopen("test.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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