Submission #1158770

#	Time	Username	Problem	Language	Result	Execution time	Memory
1158770		LCJLY	popa (BOI18_popa)	C++20	100 / 100	25 ms	428 KiB

popa

#include "popa.h"
#include <bits/stdc++.h>
using namespace std;
 
//#define int long long 
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << "  " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << "  " << j << " " << #i << "  " << q << " " << #p << endl;
#define show4(x,y) for(auto it:y) cout << it << " "; cout << #x << endl;
typedef pair<int,int>pii;
typedef pair<pii,int>pi2;
mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());

int solve(int n, int *lft, int *rgt){
	for(int x=0;x<n;x++){
		lft[x]=rgt[x]=-1;
	}
	
	deque<int>d;
	d.push_back(0);
	
	for(int x=1;x<n;x++){
		while(!d.empty()){
			int hold=d.back();
			if(query(hold,x,x,x)){
				lft[x]=hold;
				d.pop_back();
			}
			else break;
		}
		if(!d.empty()) rgt[d.back()]=x;
		d.push_back(x);
	}
	
	return d.front();
}

• Subtask 1: 37 / 37
• Subtask 2: 24 / 24
• Subtask 3: 39 / 39