Submission #871948

#	Time	Username	Problem	Language	Result	Execution time	Memory
871948		12345678	Library (JOI18_library)	C++17	0 / 100	160 ms	700 KiB

library

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

const int nx=1005;
int s;
vector<int> v[nx], res;

void dfs(int u, int p)
{
	res.push_back(u);
	for (auto x:v[u]) if (x!=p) dfs(x, u);
}

void Solve(int N)
{
	vector<int> M(N);
	for (int i=0; i<N; i++)
	{
		for (int j=i+1; j<N; j++)
		{
			M[i]=M[j]=1;
			if (Query(M)==1) v[i+1].push_back(j+1), v[j+1].push_back(i+1);
			M[i]=M[j]=0;
		}
	}
	for (int i=1; i<=N; i++) if (v[i].size()==1) s=i;
	if (s==0) int x=1/0;
	dfs(s, s);
	Answer(res);
}

Compilation message (stderr)

library.cpp: In function 'void Solve(int)':
library.cpp:29:19: warning: division by zero [-Wdiv-by-zero]
   29 |  if (s==0) int x=1/0;
      |                  ~^~
library.cpp:29:16: warning: unused variable 'x' [-Wunused-variable]
   29 |  if (s==0) int x=1/0;
      |                ^

• Subtask 1: 0 / 19
• Subtask 2: 0 / 81