제출 #3758

#제출 시각아이디문제언어결과실행 시간메모리
3758arineDivide into triangle (kriii1_D)C++98
1 / 1
0 ms1684 KiB
#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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