Submission #702737

#	Time	Username	Problem	Language	Result	Execution time	Memory
702737		jamezzz	popa (BOI18_popa)	C++17	100 / 100	93 ms	412 KiB

popa

#include "popa.h"
#include <bits/stdc++.h>
using namespace std;

int par[1005];

int solve(int n,int* lc,int* rc){
	for(int i=0;i<n;++i)par[i]=-1,lc[i]=-1,rc[i]=-1;
	int cur=0;
	for(int i=1;i<n;++i){
		//printf("i=%d:\n",i);
		while(true){
			//printf("cur=%d\n",cur);
			if(query(par[cur]+1,i,par[cur]+1,cur)){
				if(rc[cur]==-1){
					par[i]=cur;
					rc[cur]=i;
					cur=i;
					break;
				}
				else{
					par[rc[cur]]=i;
					lc[i]=rc[cur];
					rc[cur]=i;
					par[i]=cur;
					cur=i;
					break;
				}
			}
			else{
				if(par[cur]==-1){
					lc[i]=cur;
					par[cur]=i;
					cur=i;
					break;
				}
				else cur=par[cur];
			}
		}
	}
	while(par[cur]!=-1)cur=par[cur];
	return cur;
}

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