Submission #916455

#	Time	Username	Problem	Language	Result	Execution time	Memory
916455		12345678	Triple Jump (JOI19_jumps)	C++17	0 / 100	19 ms	3160 KiB

jumps

#include <bits/stdc++.h>

using namespace std;

const int nx=5e5+5;
int n, a[nx], mx[nx], res, q, l, r;
stack<int> s;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n;
    for (int i=1; i<=n; i++) cin>>a[i];
    mx[n+1]=-1e9;
    for (int i=n; i>=1; i--) mx[i]=max(mx[i+1], a[i]);
    cin>>q>>l>>r;
    for (int i=1; i<=n; i++)
    {
        while (!s.empty()&&s.top()<a[i]) res=max(res, a[s.top()]+a[i]+mx[min(n+1, 2*i-s.top())]), s.pop();
        if (!s.empty()) res=max(res, a[s.top()]+a[i]+mx[min(n+1, 2*i-s.top())]);
        s.push(i);
        //cout<<i<<' '<<res<<'\n';
    }
    cout<<res;
}

/*
5
5 4 3 2 1
1
1 5

15
12 96 100 61 54 66 37 34 58 21 21 1 13 50 81
1
1 15

5
5 2 1 5 3
1
1 5
*/

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