Submission #1256013

#	Time	Username	Problem	Language	Result	Execution time	Memory
1256013		namhh	Triple Jump (JOI19_jumps)	C++20	0 / 100	28 ms	3372 KiB

jumps

#include <bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define fi first
#define se second
const int N = 1e6+5;
const int lg = 19;
const int block = 650;
int n,q,a[N];
//test
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin >> n;
	for(int i = 1; i <= n; i++) cin >> a[i];
	cin >> q;
	while(q--){
		int l,r;
		cin >> l >> r;
		vector<pii>cc;
		for(int i = l; i <= r; i++) cc.push_back({a[i],i});
		sort(cc.begin(),cc.end());
		reverse(cc.begin(),cc.end());
		vector<pii>dm;
		for(int i = 0; i < min(lg,(int)cc.size()); i++) dm.push_back({cc[i].se,cc[i].fi});
		sort(dm.begin(),dm.end());
		int ans = 0;
		for(int i = 0; i < dm.size(); i++){
			for(int j = i+1; j < dm.size(); j++){
				for(int k = j+1; k < dm.size(); k++){
					if(2*dm[j].fi <= dm[i].fi+dm[k].fi) ans = max(ans,dm[i].se+dm[j].se+dm[k].se);
				}
			}
		}
		cout << ans << "\n";
	}
}

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