Submission #3664

#	Time	Username	Problem	Language	Result	Execution time	Memory
3664		eldkqmfhf123	Divide into triangle (kriii1_D)	C++98	1 / 1	0 ms	1684 KiB

D

#include<iostream>
#include<math.h>
#include<algorithm>

using namespace std;

struct queue
{
	int x, y, index;

	bool operator()(queue a, queue b)
	{
		if(a.x < b.x)return 1;
		if(a.x == b.x && a.y < b.y)return 1;
		return 0;
	}
}list[901];
int main()
{
	int n;
	cin >> n;
	n*=3;
	int i,j;
	for(i=0;i<n;i++)
	{
		cin >> list[i].x >> list[i].y;
		list[i].index = i+1;
	}
	std::sort(list,list+n,queue());

	int visit[901]={0,};

	for(int t=0;t<n/3;t++)
	{
		int ans=0;
		for(i=0;i<n;i++)
		{
			if(visit[i])continue;

			for(j=i+1;j<n;j++)
			{
				if(visit[j])continue;
				for(int k=j+1;k<n;k++)
				{
					if(visit[k])continue;

					
					cout << list[i].index << " " << list[j].index << " " << list[k].index << endl;
					visit[i]=1;
					visit[j]=1;
					visit[k]=1;
					ans=1;
					break;
				}
				if(ans)break;
			}
			if(ans)break;
		}
	}
}

• Subtask 1: 1 / 1