Submission #941692

#	Time	Username	Problem	Language	Result	Execution time	Memory
941692		emptypringlescan	Triple Jump (JOI19_jumps)	C++17	32 / 100	4046 ms	9428 KiB

jumps

#include <bits/stdc++.h>
using namespace std;
#define int long long
int32_t main(){
    ios::sync_with_stdio(0);cin.tie(0);
    int n;
    cin >> n;
    long long arr[n];
    for(int i=0; i<n; i++) cin >> arr[i];
    int q;
    cin >> q;
    while(q--){
		int l,r;
		cin >> l >> r;
		l--; r--;
		long long suf[n];
		suf[r]=arr[r];
		for(int i=r-1; i>=l; i--) suf[i]=max(suf[i+1],arr[i]);
		vector<pair<long long,int> > mono;
		long long ans=0;
		for(int i=l; i<=r; i++){
			while(!mono.empty()&&mono.back().first<=arr[i]){
				int a=mono.back().second;
				if(i*2-a<=r) ans=max(ans,arr[a]+arr[i]+suf[i*2-a]);
				mono.pop_back();
			}
			if(!mono.empty()){
				int a=mono.back().second;
				if(i*2-a<=r) ans=max(ans,arr[a]+arr[i]+suf[i*2-a]);
			}
			mono.push_back({arr[i],i});
		}
		cout << ans << '\n';
	}
}

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