제출 #49164

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
49164		StainFizzy	Simurgh (IOI17_simurgh)	C++14	0 / 100	87 ms	488 KiB

simurgh

#include "simurgh.h"
#include <bits/stdc++.h>
#define N 55
#define f first
#define s second
using namespace std;
typedef pair<int, int> pii;
 
int ok[N], mm, nn;
 
vector<pii> grafo[N];
 
vector<int> roads;
 
void dfs(int x)
{
	ok[x] = 1;
 
	random_shuffle(grafo[x].begin(), grafo[x].end());
 
	for(auto v: grafo[x])
	{
		if(ok[v.f]) continue;
 
		roads.push_back(v.s);
 
		ok[v.f] = 1;
 
		dfs(v.f);
	}
}
 
std::vector<int> find_roads(int n_, std::vector<int> u, std::vector<int> v)
{
	for(int i = 0; i < u.size(); i++)
	{
		grafo[u[i]].push_back({v[i], i});
 
		grafo[v[i]].push_back({u[i], i});
	}
 
	while(true)
	{
		memset(ok, 0, sizeof ok);
 
		roads.clear();
 
		dfs(1);
 
		if(count_common_roads(roads) == n_ -1)
		{
				return roads;
		}
	}
}

컴파일 시 표준 에러 (stderr) 메시지

simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:35:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < u.size(); i++)
                 ~~^~~~~~~~~~

• Subtask 1: 0 / 13
• Subtask 2: 0 / 17
• Subtask 3: 0 / 21
• Subtask 4: 0 / 19
• Subtask 5: 0 / 30