Submission #601672

#	Time	Username	Problem	Language	Result	Execution time	Memory
601672		Mazaalai	Meetings (IOI18_meetings)	C++17	19 / 100	526 ms	399980 KiB

meetings

#include "meetings.h"
#include <bits/stdc++.h>
#define sz(x) (int)x.size()
#define ALL(x) x.begin(), x.end()
#define chmax(a, b) a=max(a,b)
#define chmin(a, b) a=min(a,b)
#define pb push_back
#define ff first
#define ss second
using namespace std;
using ll = long long;
using VI = vector <int>;
using PII = pair <int, int>;
int n, m, q;
const int N = 5001;
ll dp[N][N];
vector<long long> minimum_costs(vector<int> h, vector<int> L, vector<int> R) {
    n = sz(h);
    q = sz(L);
    // cout << n << ' ' << q  << '\n';
    vector<long long> ans(q, 1e18);
    for (int i = 0; i < n; i++) {
        for (int j = i, cur = 0; j < n; j++) {
            cur = max(cur, h[j]);
            dp[i][j] = cur;
            if (j > i) dp[i][j] += dp[i][j-1];
        }
        for (int j = i, cur = 0; j >= 0; j--) {
            cur = max(cur, h[j]);
            dp[i][j] = cur;
            if (j < i) dp[i][j] += dp[i][j+1];
        }
    }
    for (int i = 0; i < q; i++) {
        int l = L[i], r = R[i];
        ll& res = ans[i];
        for (int mid = l; mid <= r; mid++) {
            chmin(res, dp[mid][l]+dp[mid][r]-h[mid]);
        }
    }
    return ans;
}

• Subtask 1: 4 / 4
• Subtask 2: 15 / 15
• Subtask 3: 0 / 17
• Subtask 4: 0 / 24
• Subtask 5: 0 / 40