oj.uz

Submission #49165

# Submission time Handle Problem Language Result Execution time Memory
49165 2018-05-22T22:54:26 Z StainFizzy Simurgh (IOI17_simurgh) C++14
0 / 100
 47 ms 436 KB 
#include "simurgh.h"
#include <bits/stdc++.h>
#define N 55
#define f first
#define s second
using namespace std;
typedef pair<int, int> pii;
 
int ok[N], mm, nn;
 
vector<pii> grafo[N];
 
vector<int> roads;
 
void dfs(int x)
{
	ok[x] = 1;
 
	random_shuffle(grafo[x].begin(), grafo[x].end());
 
	for(auto v: grafo[x])
	{
		if(ok[v.f]) continue;
 
		roads.push_back(v.s);
 
		ok[v.f] = 1;
 
		dfs(v.f);
	}
}
 
std::vector<int> find_roads(int n_, std::vector<int> u, std::vector<int> v)
{
	for(int i = 0; i < u.size(); i++)
	{
		grafo[u[i]].push_back({v[i], i});
 
		grafo[v[i]].push_back({u[i], i});
	}
 
	while(true)
	{
		memset(ok, 0, sizeof ok);
 
		roads.clear();
 
		dfs(0);
 
		if(count_common_roads(roads) == n_ -1)
		{

				return roads;
		}
	}
}

Compilation message

simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:35:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < u.size(); i++)
                 ~~^~~~~~~~~~

Subtask #1
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 47 ms 376 KB WA in grader: NO
2 Halted 0 ms 0 KB -

Subtask #2
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 47 ms 376 KB WA in grader: NO
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 47 ms 376 KB WA in grader: NO
2 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB correct
2 Incorrect 44 ms 436 KB WA in grader: NO
3 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 47 ms 376 KB WA in grader: NO
2 Halted 0 ms 0 KB -