Submission #300800

#	Time	Username	Problem	Language	Result	Execution time	Memory
300800		luciocf	Connecting Supertrees (IOI20_supertrees)	C++14	11 / 100	249 ms	22264 KiB

supertrees

#include <bits/stdc++.h>
#include "supertrees.h"
#include <vector>

using namespace std;

const int maxn = 1e3+10;

int construct(vector<vector<int>> p)
{
	int n = p.size();
	vector<vector<int>> ans;

	int u = -1, v = -1;

	for (int i = 0; i < n; i++)
		for (int j = 0; j < n; j++)
			if (p[i][j] == 2)
				u = i, v = j;

	if (u == -1)
	{
		for (int i = 0; i < n; i++)
		{
			vector<int> a;
			a.resize(n);

			if (i < n-1) a[i+1] = 1;
			if (i > 0) a[i-1] = 1;

			ans.push_back(a);
		}

		build(ans);
		return 1;
	}
}

Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:14:14: warning: variable 'v' set but not used [-Wunused-but-set-variable]
   14 |  int u = -1, v = -1;
      |              ^
supertrees.cpp:12:22: warning: control reaches end of non-void function [-Wreturn-type]
   12 |  vector<vector<int>> ans;
      |                      ^~~

• Subtask 1: 11 / 11
• Subtask 2: 0 / 10
• Subtask 3: 0 / 19
• Subtask 4: 0 / 35
• Subtask 5: 0 / 21
• Subtask 6: 0 / 4