Submission #1044158

#	Time	Username	Problem	Language	Result	Execution time	Memory
1044158		vjudge1	Zagonetka (COI18_zagonetka)	C++17	9 / 100	6 ms	344 KiB

zagonetka

#include <bits/stdc++.h>

using namespace std;

int query(vector<int> v)
{
	int x;
	cout<<"query";
	for (int i:v)
		cout<<' '<<i;
	cout<<endl;
	cin>>x;
	return x;
}

signed main()
{
	int n;
	cin>>n;
	int x;
	for (int i=0;i<n;i++)
		cin>>x;
	if (n<=6)
	{
		vector<int> v;
		for (int i=1;i<=n;i++)
			v.push_back(i);
		vector<int> ans,ans1;
		do
		{
			if (query(v))
			{
				if (ans.empty())
					ans=v;
				ans1=v;
			}
		}while(next_permutation(v.begin(),v.end()));
		cout<<"end\n";
		for (int i=0;i<n-1;i++)
			cout<<ans[i]<<' ';
		cout<<ans.back()<<'\n';
		for (int i=0;i<n-1;i++)
			cout<<ans1[i]<<' ';
		cout<<ans1.back()<<endl;
	}
	else
	{
		vector<int> v,ans,ans1;
		for (int i=1;i<=n;i++)
			v.push_back(i);
		x=query(v);
		ans=ans1=v;
		reverse(ans1.begin(),ans1.end());
		if (!x)
		{
			int pi,pj=0;
			for (int i=0;i<n && !pj;i++)
				for (int j=i+1;j<n && !pj;j++)
				{
					swap(v[i],v[j]);
					if (query(v))
						pi=i,pj=j;
					swap(v[i],v[j]);
				}
			for (int i=pi+1;i<=pj;i++)
				swap(ans[i],ans[i-1]);
		}
		else
		{
			v=ans1;
			int pi,pj=0;
			for (int i=0;i<n && !pj;i++)
				for (int j=i+1;j<n && !pj;j++)
				{
					swap(v[i],v[j]);
					if (query(v))
						pi=i,pj=j;
					swap(v[i],v[j]);
				}
			for (int i=pi+1;i<=pj;i++)
				swap(ans1[i],ans1[i-1]);
		}
		cout<<"end\n";
		for (int i=0;i<n-1;i++)
			cout<<ans[i]<<' ';
		cout<<ans.back()<<'\n';
		for (int i=0;i<n-1;i++)
			cout<<ans1[i]<<' ';
		cout<<ans1.back()<<endl;
	}
	
	return 0;
}

Compilation message (stderr)

zagonetka.cpp: In function 'int main()':
zagonetka.cpp:71:8: warning: 'pi' may be used uninitialized in this function [-Wmaybe-uninitialized]
   71 |    int pi,pj=0;
      |        ^~
zagonetka.cpp:56:8: warning: 'pi' may be used uninitialized in this function [-Wmaybe-uninitialized]
   56 |    int pi,pj=0;
      |        ^~

• Subtask 1: 9 / 9
• Subtask 2: 0 / 18
• Subtask 3: 0 / 22
• Subtask 4: 0 / 51