Submission #1126515

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126515		czauderna	Room Temperature (JOI24_ho_t1)	C++20	100 / 100	148 ms	6560 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
const int INF = 1e9;
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int n, k;
	cin >> n >> k;
	vector<int> inp, arr;
	for(int i=0; i<n; i++){
		int x; cin >> x;
		inp.pb(x);
	}
	sort(inp. begin(), inp.end());
	for(int i=1; i<n; i++){
		int diff = inp[i]-inp[0];
		diff = diff/k; inp[i]-=diff*k;
	}
	sort(inp. begin(), inp.end());
	arr.pb(inp[0]-k);
	for(int i=1; i<n; i++){
		arr.pb(inp[i]-k);
	}
	for(auto x:inp) arr.pb(x);
	int out = INF;
	for(int i=0; i<n; i++){
		int diff = arr[i+n-1]-arr[i];
		out = min(out, diff/2 + diff%2);
	}
	cout << out << '\n';
	return 0;
}

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