Submission #150567

#	Time	Username	Problem	Language	Result	Execution time	Memory
150567		usa1+samsung2 (#200)	Crosses on the Grid (FXCUP4_cross)	C++17	8 / 100	119 ms	6808 KiB

cross

#include "cross.h"
#include <algorithm>

#define II i.o*i.o - (i.o - i.i)*(i.o - i.i)
#define JJ j.o*j.o - (j.o - j.i)*(j.o - j.i)

struct list {
	long long i, o;
	bool operator()(list i, list j) {
		if (II > JJ) return true;
		else if (II == JJ) return i.o > j.o;
		return false;
	}
}d[1000001];

long long SelectCross(int K, std::vector<int> I, std::vector<int> O) {
	int N = I.size();
	for (int i = 0; i < N; i++) 
		d[i].i = I[i], d[i].o = O[i];

	std::sort(d, d + N, list());

	long long l1 = d[0].o, l2 = d[0].i;

	for (int i = 1; i < K; i++) {
		if (l1 > d[i].o) l1 = d[i].o;
		if (l2 > d[i].i) l2 = d[i].i;
	}

	long long ans = l1 * l1 - (l1 - l2) * (l1 - l2);

	return ans;
}

• Subtask 1: 8 / 8
• Subtask 2: 0 / 55
• Subtask 3: 0 / 37