제출 #397072

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
397072		Nicholas_Patrick	Sure Bet (CEOI17_sure)	C++17	0 / 100	1 ms	204 KiB

sure

#include <cstdio>
#include <queue>
#include <cmath>
#include <set>
using namespace std;

struct point{
	long long x, y;
	point(long long x=0, long long y=0):x(x), y(y){}
	bool operator<(point rhs)const{
		if(x!=rhs.x)return x<rhs.x;
		return y<rhs.y;
	}
};
int main(){
	int n;
	scanf("%d", &n);
	if(n>10)return 0;
	set<point> candy;
	candy.emplace();
	vector<point> p(n);
	long long ans=0;
	for(auto& i: p){
		float x, y;
		scanf("%f%f", &x, &y), x-=1, y-=1;
		i=point(round(x*10000), round(y*10000));
		auto candycopy=candy;
		for(auto j: candycopy){
			ans=max(ans, min(j.x-10000, j.y+i.y));
			candy.emplace(j.x-10000, j.y+i.y);
			ans=max(ans, min(j.x+i.x, j.y-10000));
			candy.emplace(j.x+i.x, j.y-10000);
		}
	}
	printf("%.4lf\n", ans/10000.0);
}

컴파일 시 표준 에러 (stderr) 메시지

sure.cpp: In function 'int main()':
sure.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   17 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
sure.cpp:25:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   25 |   scanf("%f%f", &x, &y), x-=1, y-=1;
      |   ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 40