Submission #589625

#	Time	Username	Problem	Language	Result	Execution time	Memory
589625		LIF	Connecting Supertrees (IOI20_supertrees)	C++14	11 / 100	167 ms	28028 KiB

supertrees

#include "supertrees.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;
int checkx[1005][1005];
int construct(std::vector<std::vector <int> > p) {
	bool flag = 1;
	vector<vector<int> > ans;
	for(int i=0;i<p.size();i++)
	{
		for(int j=0;j<p[i].size();j++)
		{
			if(p[i][j] == 3)
			{
				return 0;
			}
			if(p[i][j]!=1)
			{
				flag = 0; 
			}
		}
	}
	if(flag == 1) //that means all distance is 1;
	{
		for(int i=0;i<p[0].size()-1;i++)
		{
			checkx[i][i+1] = true;
			checkx[i+1][i] = true;	
		}
		for(int i=0;i<p[0].size();i++)
		{
			vector<int> v;
			for(int j=0;j<p[0].size();j++)
			{
				if(i==j)
				{
					v.push_back(0);
				}
				else
				{
					if(checkx[i][j] == true)
					{
						v.push_back(1);
					}
					else
					{
						v.push_back(0);
					}
				}
			}
			ans.push_back(v);
			
		}
	}
	build(ans);
	return 1;
}

Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:9:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for(int i=0;i<p.size();i++)
      |              ~^~~~~~~~~
supertrees.cpp:11:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |   for(int j=0;j<p[i].size();j++)
      |               ~^~~~~~~~~~~~
supertrees.cpp:25:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |   for(int i=0;i<p[0].size()-1;i++)
      |               ~^~~~~~~~~~~~~~
supertrees.cpp:30:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |   for(int i=0;i<p[0].size();i++)
      |               ~^~~~~~~~~~~~
supertrees.cpp:33:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |    for(int j=0;j<p[0].size();j++)
      |                ~^~~~~~~~~~~~

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