Submission #1318980

#	Time	Username	Problem	Language	Result	Execution time	Memory
1318980		Bolatulu	Room Temperature (JOI24_ho_t1)	C++20	0 / 100	0 ms	332 KiB

Main

#include <bits/stdc++.h>

using namespace std;

typedef unsigned long long ull;
typedef long long ll;
typedef long double db;

#define int ll
#define all(x) (x).begin(), (x).end()
#define md ((tl + tr) >> 1)
#define TL v + v, tl, md
#define TR v + v + 1, md + 1, tr
#define Tl t[v].l, tl, md
#define Tr t[v].r, md + 1, tr

constexpr int maxn = 200'007;
constexpr ll inf = 1e18 + 7;
constexpr ll M = 998244353;

int binpow(int a, int n) {
    if (n == 0)
        return 1;
    if (n & 1)
        return a * binpow(a, n - 1) % M;
    int x = binpow(a, n >> 1);
    return x * x % M;
}

const int dx[4] = {-1, 0, 1, 0};
const int dy[4] = {0, 1, 0, -1};
const db eps = 0.000000000000001;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int random(int l, int r) {
    return uniform_int_distribution<int>(l, r)(rng);
}

int n, t, a[maxn];

int calc(int x, int y) {
    if (x >= y)
        return x - y;
    return x + t - y;
}

void solve() {
    cin >> n >> t;
    set<int> s;
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        s.insert(a[i] % t);
    }
    n = 0;
    for (auto now : s) {
        a[n] = now;
        n++;
    }
    int mx = 0;
    for (int i = 0; i < n; i++) {
        mx = max(mx, calc(a[(i + 1) % n], a[i]));
    }
    cout << (t - mx + 1) / 2;
}

signed main() {
    // freopen("qi.in", "r", stdin);
    // freopen("qi.out", "w", stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int test = 1;
    // cin >> test;
    while (test--) {
        solve();
        // cout << '\n';
    }
    return 0;
}

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