Submission #4319

#	Time	Username	Problem	Language	Result	Execution time	Memory
4319		kipa00	Divide into triangle (kriii1_D)	C++98	1 / 1	0 ms	348 KiB

D

#include <cstdio>
#include <algorithm>
using namespace std;

class Fence {
public:
	int x, y, n;
	bool operator<(const Fence f) const {
		bool res = x < f.x;
		if (x == f.x) {
			return y < f.y;
		}
		return res;
	}
};

int main() {
	Fence arr[900];
	int N, i;
	scanf("%d", &N);
	N *= 3;
	for (i=0; i<N; ++i) {
		Fence ff;
		int x, y;
		scanf("%d %d", &x, &y);
		ff.x = x; ff.y = y;
		ff.n = i + 1;
		arr[i] = ff;
	}
	sort(arr, arr+N);
	for (i=0; i<N;) {
		printf("%d ", arr[i].n);
		if (!((++i) % 3)) {
			printf("\n");
		}
	}
	return 0;
}

Compilation message (stderr)

D.cpp: In function 'int main()':
D.cpp:20:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
D.cpp:25:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |   scanf("%d %d", &x, &y);
      |   ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 1 / 1