제출 #315031

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
315031		thtsshz_bgwrswh	CONSUL (info1cup19_consul)	C++17	컴파일 에러	0 ms	0 KiB

consul

#pragma GCC optimize("Ofast")
#include "grader.h"
#include<algorithm>
#include<random>
#include<vector>
#include<utility>
#include<map>
using namespace std;
int order[1005];
map<int,int> m;
vector<pair<int,int>> q;
void solve(int n){
	int i;
	for(i=0;i<n;i++)
		order[i]=i;
	random_shuffle(order,order+n);
	for(i=0;i<40;i++)
		m[kth(order[i])]++;	
	for(auto x:m)
		q.emplace_back(m.second,m.first);
	sort(q.begin(),q.end());
	reverse(q.begin(),q.end());
	if(n<=50){
		int ans=0,v;
		for(i=0;i<10&&i<(int)q.size();i++){
			int temp=cnt(q[i].second);
			if(temp>ans){
				ans=temp;
				v=q[i].second;
			}
		}
		if(ans>n/3)
			say_answer(v);
		else
			say_answer(-1);
	}
	else{
		int ans=0,v;
		for(i=0;i<20&&i<(int)q.size();i++){
			int temp=cnt(q[i].second);
			if(temp>ans){
				ans=temp;
				v=q[i].second;
			}
		}
		if(ans>n/3)
			say_answer(v);
		else
			say_answer(-1);
	}
}

컴파일 시 표준 에러 (stderr) 메시지

consul.cpp: In function 'void solve(int)':
consul.cpp:20:20: error: 'class std::map<int, int>' has no member named 'second'
   20 |   q.emplace_back(m.second,m.first);
      |                    ^~~~~~
consul.cpp:20:29: error: 'class std::map<int, int>' has no member named 'first'
   20 |   q.emplace_back(m.second,m.first);
      |                             ^~~~~