제출 #136919

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
136919		dnass	Pareto (COCI17_pareto)	C++14	80 / 80	166 ms	4204 KiB

pareto

#include <bits/stdc++.h>
using namespace std;

typedef long long int lld;

lld n;
lld a[300100];

int main(){
	cout.precision(15);
	cin >> n;
	lld tot_sum = 0;
	for(lld i=0;i<n;i++){
		cin >> a[i];
		tot_sum += a[i];
	}
	sort(a, a+n); reverse(a, a+n);
	lld sum = 0;
	double max_dif = -1;
	double aa, bb, real_a, real_b;
	for(lld i=0;i<n;i++){
		sum += a[i];
		aa = ((double)(i+1))/((double)n);
		bb = ((double)sum)/((double)tot_sum);
		if(bb-aa>max_dif){
			max_dif = bb-aa;
			real_b = bb;
			real_a = aa;
		}
	}
	cout << 100*real_a << endl;
	cout << 100*real_b << endl;
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

pareto.cpp: In function 'int main()':
pareto.cpp:32:14: warning: 'real_b' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout << 100*real_b << endl;
              ^~~~~~
pareto.cpp:31:14: warning: 'real_a' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout << 100*real_a << endl;
              ^~~~~~

• Subtask 1: 80 / 80