Submission #812474

#	Time	Username	Problem	Language	Result	Execution time	Memory
812474		vjudge1	Triple Jump (JOI19_jumps)	C++17	19 / 100	249 ms	72376 KiB

jumps

#ifdef Home
#define _GLIBCXX_DEBUG
#endif // Home

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

const int N = 5005;


int mx[N][N], arr[N];

main() {
#ifdef Home
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif // Home
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n;
    cin >> n;
    for(int i = 1; i <= n; ++ i) {
        cin >> arr[i];
    }
    for(int l = n; l >= 1; -- l) {
        int m = l + 1;
        for(int r = m + 1; r <= n; ++ r) {
            if(m < (l + r) / 2 && arr[m] < arr[(l + r) / 2]) {
                m = (l + r) / 2;
            }
            mx[l][r] = max({mx[l + 1][r], mx[l][r - 1], arr[l] + arr[m] + arr[r]});
        }
    }
    int q, l, r;
    for(cin >> q; q --> 0;) {
        cin >> l >> r;
        cout << mx[l][r] << '\n';
    }
}

Compilation message (stderr)

jumps.cpp:17:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   17 | main() {
      | ^~~~

• Subtask 1: 5 / 5
• Subtask 2: 14 / 14
• Subtask 3: 0 / 27
• Subtask 4: 0 / 54