Submission #1079852

#	Time	Username	Problem	Language	Result	Execution time	Memory
1079852		quangminh412	Room Temperature (JOI24_ho_t1)	C++14	5 / 100	1 ms	348 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
#define int 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;
	
	int res = 1e18;
  	for (int i = max(0ll, diff - 3); i <= diff + 3; i++)
      	res = min(res, abs(arr[1] - (arr[2] - t  * i)));
 
  	cout << res << '\n';
  
	return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
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.inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:25:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |   freopen("test.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 15
• Subtask 2: 5 / 5
• Subtask 3: 0 / 30
• Subtask 4: 0 / 35
• Subtask 5: 0 / 15