oj.uz

Submission #889684

# Submission time Handle Problem Language Result Execution time Memory
889684 2023-12-20T05:06:15 Z Faisal_Saqib Unscrambling a Messy Bug (IOI16_messy) C++17
0 / 100
 1 ms 364 KB 
#pragma once

#include <vector>
#include <string>
#include <set>
using namespace std;
void add_element(std::string x);
bool check_element(std::string x);
void compile_set();

std::vector<int> restore_permutation(int n, int w, int r)
{
	string s(n,'0');
	set<string> aft,bef;
	vector<int> p;
	for(int i=0;i<n;i++)
		p.push_back(i);
	for(int i=0;i<(n-1);i++)
	{
		s[i]='1';
		add_element(s);
		bef.insert(s);
	}
	compile_set();
	for(int mask=0;mask<(1<<n);mask++)
	{
		string t="";
		for(int j=0;j<n;j++)
		{
			if(mask&(1<<j))
				t+='1';
			else
				t+='0';
		}
		if(check_element(t))
		{
			aft.insert(t);
		}
	}
	for(int i=0;i<n;i++)
	{
		for(int j=i+1;j<n;j++)
		{
			bool pos=1;
			for(auto sp:bef)
			{
				swap(sp[i],sp[j]);
				if(aft.find(sp)==aft.end())
				{
					swap(sp[i],sp[j]);
					pos=0;
					break;
				}
				swap(sp[i],sp[j]);
			}
			if(pos)
			{
				swap(p[i],p[j]);
				return p;
			}
		}
	}
	return {};
}

Compilation message

messy.cpp:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB n = 8
2 Correct 1 ms 348 KB n = 8
3 Correct 0 ms 348 KB n = 8
4 Correct 0 ms 348 KB n = 8
5 Correct 1 ms 348 KB n = 8
6 Correct 0 ms 348 KB n = 8
7 Incorrect 1 ms 348 KB grader returned WA
8 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB grader returned WA
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 364 KB grader returned WA
2 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB grader returned WA
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB grader returned WA
2 Halted 0 ms 0 KB -