Submission #227347

#	Time	Username	Problem	Language	Result	Execution time	Memory
227347		aryanv	Planinarenje (COCI18_planinarenje)	C++14	96 / 160	1090 ms	2040 KiB

planinarenje

//Be Name Khoda, Besmellah Rahmane Rahim, In The Name Of God;
//#include<bits/stweight++.h>
#include<iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <set>
#include <queue>
#include <deque>
#include <map>
#include <stack>
#include<bitset>
#include<list>
#include<cassert>
#include<numeric>
#include <stdio.h>
#include <string.h>
#include<iomanip>
#include<unordered_map>
#include<unordered_set>
#include <iostream>
#include <fstream>


using namespace std;

const int N = 10000 + 5;

int n, m;
set<int>graph[N];
vector<int> adj[N];
bool mark[N];
int match_up[N];
int match_down[N];

bool dfs(int v) 
{
	mark[v] = true;
	for (auto u : graph[v]) 
	{
		if (match_up[u] == -1 || (!mark[match_up[u]] && dfs(match_up[u]))) { // augmenting path found!
			match_up[u] = v;
			match_down[v] = u;
			return true;
		}
	}
	return false;
}

int solver()
{
	int ans = 0;
	memset(match_down, -1, sizeof match_down);
	memset(match_up, -1, sizeof match_up);
	while (true) 
	{
		bool finished = true;
		memset(mark, 0, sizeof mark);
		for (int i = 0; i < n * 2; i++)
		{
			if (match_down[i] == -1 && !mark[i] && dfs(i)) 
			{
				finished = false;
				ans++;	
			}
		}
		if (finished)
		{
			break;
		}
	}
	return ans;
}


int main() 
{
	std::ios::sync_with_stdio(false);
	cin.tie(0);
	cin >> n >> m;
	for (int i = 0; i < m; i++) 
	{
		int u, v;
		cin >> u >> v;
		u--;
		v--;
		graph[2 * u].insert(2 * v + 1);
		graph[2 * v + 1].insert(2 * u);
		adj[2 * u].push_back(2 * v + 1);
		adj[2 * v + 1].push_back(2 * u);
	}
	int max_matching = solver();
	for (int i = 0; i < 2 * n; i += 2)
	{
		for (auto u: adj[i])
		{
			graph[u].erase(i);
			graph[i].erase(u);
		}
		int num = solver();	
		for (auto u: adj[i])
		{
			graph[u].insert(i);
			graph[i].insert(u);
		}
		if (num == max_matching)
		{
			cout << "Mirko" << '\n';
		}
		else
		{
			cout << "Slavko" << '\n';
		}
	}
}
 

• Subtask 1: 16 / 16
• Subtask 2: 16 / 16
• Subtask 3: 16 / 16
• Subtask 4: 16 / 16
• Subtask 5: 0 / 16
• Subtask 6: 16 / 16
• Subtask 7: 16 / 16
• Subtask 8: 0 / 16
• Subtask 9: 0 / 16
• Subtask 10: 0 / 16