제출 #164426

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
164426		tneluccus	Meetings (JOI19_meetings)	C++14	0 / 100	95 ms	728 KiB

meetings

#include<bits/stdc++.h>
#include "meetings.h"
using namespace std;
const int num=2e3+2;
vector<int> lis[num];
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
void solve1(int root){
	int n=lis[root].size(),i,j,ran,ver;
	if(!n){
		return;
	}
	vector<int> idx;
	ran=rng()%n;
	ver=lis[root][ran];
	for(i=0;i<n;i++){
		if(i==ran){
			continue;
		}
		assert(root!=ver&&root!=lis[root][i]&&ver!=lis[root][i]);
		j=Query(root,ver,lis[root][i]);
		idx.push_back(j);
		if(j!=lis[root][i]){
			lis[j].push_back(lis[root][i]);
		}
	}
	sort(idx.begin(),idx.end());
	idx.erase(unique(idx.begin(),idx.end()),idx.end());
	sort(idx.begin(),idx.end(),[&](int x,int y){
		return Query(root,x,y)==x;
	});
	j=root;
	for(i=0;i<idx.size();i++){
		Bridge(j,idx[i]);
		j=idx[i];
	}
	for(i=0;i<idx.size();i++){
		solve1(idx[i]);
	}
}
void Solve(int N){
	int n=N,i,root=rng()%N;
	for(i=0;i<n;i++){
		if(i==root){
			continue;
		}
		lis[root].push_back(i);
	}
	solve1(root);
}

컴파일 시 표준 에러 (stderr) 메시지

meetings.cpp: In function 'void solve1(int)':
meetings.cpp:32:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(i=0;i<idx.size();i++){
          ~^~~~~~~~~~~
meetings.cpp:36:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(i=0;i<idx.size();i++){
          ~^~~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 71