Submission #916457

#	Time	Username	Problem	Language	Result	Execution time	Memory
916457		12345678	Triple Jump (JOI19_jumps)	C++17	0 / 100	16 ms	6744 KiB

jumps

#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int nx=5e5+5;
ll n, a[nx], mx[nx], res, q, l, r;
stack<ll> 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]=-2e9;
    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, (ll)(2*i-s.top()))]), s.pop();
        if (!s.empty()) res=max(res, a[s.top()]+a[i]+mx[min(n+1, (ll)(2*i-s.top()))]);
        s.push(i);
        //cout<<i<<' '<<res<<'\n';
    }
    cout<<res;
}

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