Submission #649531

#	Time	Username	Problem	Language	Result	Execution time	Memory
649531		GudStonks	Kutije (COCI21_kutije)	C++17	35 / 70	1074 ms	14984 KiB

Main

#include<bits/stdc++.h>
using namespace std;
bool us[1005][1005];
vector<int>g[1005];
int m, n, q;

void dfs(int v, int st)
{
	us[st][v] = 1;
	for(int i = 0; i < g[v].size(); i++)
	{
		if(!us[st][g[v][i]])
			dfs(g[v][i], st);
	}
}

void fun()
{
	cin>>m>>n>>q;
	for(int i = 1; i <= n; i++)
	{
		for(int j = 1, a; j <= m; j++)
		{
			cin>>a;
			g[a].push_back(j);
		}
	}
	for(int i = 1; i <= m; i++)
	{
		dfs(i, i);
	}
	for(int i = 1, a, b; i <= q; i++)
	{
		cin>>a>>b;
		cout<<((us[a][b]) ? "DA" : "NE")<<endl;
	}
}
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int ttt = 1;
	//cin>>ttt;
	while(ttt--)
		fun();
}

Compilation message (stderr)

Main.cpp: In function 'void dfs(int, int)':
Main.cpp:10:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |  for(int i = 0; i < g[v].size(); i++)
      |                 ~~^~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 35