Submission #3425

#	Time	Username	Problem	Language	Result	Execution time	Memory
3425		mjy0503	Divide into triangle (kriii1_D)	C++98	1 / 1	0 ms	1204 KiB

D

#include <stdio.h>
#include <algorithm>
#include <string.h>
#include <vector>
int n;
struct q{
	int x,y,no;
	bool operator() (q a,q b){
		return a.x<b.x || (a.x==b.x && a.y<b.y);
	}
}su[10001];
int main(){
	scanf("%d",&n);
	int i;
	for(i=0;i<3*n;i++){
		scanf("%d %d",&su[i].x,&su[i].y);
		su[i].no=i+1;
	}
	std::sort(su,su+n*3,q());
	for(i=0;i<n;i++){
		printf("%d %d %d\n",su[i*3].no,su[i*3+1].no,su[i*3+2].no);
	}
	return 0;
}

• Subtask 1: 1 / 1