Submission #1308022

#	Time	Username	Problem	Language	Result	Execution time	Memory
1308022		nanaseyuzuki	Room Temperature (JOI24_ho_t1)	C++20	100 / 100	105 ms	4648 KiB

Main

#include <bits/stdc++.h>
// Kazusa_Megumi
#define ll long long
#define fi first
#define se second
#define pii pair<int, int>
#define all(a) a.begin(), a.end()
using namespace std;

const int mn = 5e5 + 5, mod = 1e9 + 7, inf = 2e9;

void solve() {
 	int n, k; cin >> n >> k;
 	vector <int> val;   
 	for(int i = 1; i <= n; i++){
 		int x; cin >> x;
 		val.push_back(x % k); val.push_back(x % k + k);
 	}
 	sort(all(val));
 	int mx = 0;
 	for(int i = 0; i < 2 * n - 1; i++) mx = max(mx, val[i + 1] - val[i]);
 	cout << (k - mx + 1) / 2 << '\n';
}

main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
    if (fopen("Kazuki.INP", "r")) {
        freopen("Kazuki.INP", "r", stdin);
        freopen("Kazuki.OUT", "w", stdout);
    }
    int t = 1;
    // cin >> t;
    while (t--) solve();
    return 0;
}

Compilation message (stderr)

Main.cpp:25:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   25 | main() {
      | ^~~~
Main.cpp: In function 'int main()':
Main.cpp:29:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |         freopen("Kazuki.INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:30:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |         freopen("Kazuki.OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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