Submission #1168017

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1168017	2025-03-17 01:57:27	tsengang	Watching (JOI13_watching)	C++20	50 / 100	1093 ms	3908 KiB

watching

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#include <bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define pb push_back
#define ertunt return
#define vodka void
using namespace std;
int main() {
    ll n, p, q;
    cin >> n >> p >> q;
    if (p + q >= n) {
        cout << 1;
        ertunt 0;
    }
    ll a[n];
    for (ll i = 0; i < n; i++) cin >> a[i];
    ll l = 1, r = 1e9 + 5;
    sort(a,a+n);
    while (l < r) {
        ll m = (l + r) / 2;
        ll dp[n + 4][p + 1][q + 1] = {};
        for (ll i = n - 1; i >= 0; i--) {
            for (ll j = p; j >= 0; j--) {
                for (ll k = q; k >= 0; k--) {
                    if (k > 0) {
                        ll cur = i;
                        while (cur < n - 1 and a[cur + 1] < a[i] + 2 * m) cur++;
 
 
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• Subtask 1: 50 / 50
• Subtask 2: 0 / 50