Submission #3755

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
3755	2013-08-31 08:09:07	arine	Cactus? Not cactus? (kriii1_C)	C++98	0 / 1	0 ms	1684 KiB

C

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#include <iostream>
#include <algorithm>
using namespace std;
typedef struct _point {
    int x, y;
    int num;
    bool operator<(const _point& A) const { return x<A.x || x==A.x && y<A.y; }
} point;
int N;
point data[905];
int main() {
    cin >> N;
    for(int i=0; i<3*N; ++i) {
        cin >> data[i].x >> data[i].y;
        data[i].num=i+1;
    }   
    sort(data, data+3*N);
    for(int i=0; i<3*N; i+=3)
        cout << data[i].num << " " << data[i+1].num << " " << data[i+2].num << endl;
    return 0;
}
 
 
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• Subtask 1: 0 / 1