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Submission #3808

# Submission time Handle Problem Language Result Execution time Memory
3808 2013-08-31T08:28:25 Z gs13068 Divide into triangle (kriii1_D) C++
1 / 1
 4 ms 1096 KB 
#include<cstdio>

int x[900];
int y[900];
bool no[900];

int main()
{
	double t;
	int bot;
	int i,j,k,n;
	scanf("%d",&n);
	for(i=0;i<n*3;i++)scanf("%d%d",&x[i],&y[i]);
	j=0;
	for(i=1;i<n*3;i++)
	{
		if(y[i]<y[j])
			j=i;
	}
	printf("%d ",j+1);
	no[j]=true;
	bot=j;
	for(i=1;i<n*3;i++)
	{
		for(k=0;no[k];k++);
		for(j=k+1;j<n*3;j++)
		{
			if(no[j])continue;
			if(1LL*(x[j]-x[bot])*(y[k]-y[bot])<1LL*(x[k]-x[bot])*(y[j]-y[bot]))
				k=j;
		}
		printf("%d ",k+1);
		no[k]=true;
		if(i%3==2)puts("");
	}
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1096 KB Output is correct
2 Correct 0 ms 1096 KB Output is correct
3 Correct 0 ms 1096 KB Output is correct
4 Correct 0 ms 1096 KB Output is correct
5 Correct 0 ms 1096 KB Output is correct
6 Correct 0 ms 1096 KB Output is correct
7 Correct 0 ms 1096 KB Output is correct
8 Correct 0 ms 1096 KB Output is correct
9 Correct 4 ms 1096 KB Output is correct
10 Correct 4 ms 1096 KB Output is correct
11 Correct 4 ms 1096 KB Output is correct
12 Correct 4 ms 1096 KB Output is correct
13 Correct 4 ms 1096 KB Output is correct
14 Correct 4 ms 1096 KB Output is correct
15 Correct 4 ms 1096 KB Output is correct
16 Correct 4 ms 1096 KB Output is correct
17 Correct 4 ms 1096 KB Output is correct
18 Correct 4 ms 1096 KB Output is correct
19 Correct 4 ms 1096 KB Output is correct
20 Correct 4 ms 1096 KB Output is correct