[Programmers] 실패율

문제 링크입니다: https://programmers.co.kr/learn/courses/30/lessons/42889

코딩테스트 연습 - 실패율

간단한 구현 문제였습니다.

 

	#include <iostream>
	#include <string>
	#include <vector>
	#include <algorithm>
	using namespace std;
	const int MAX = 500 + 1;
	pair<int, int> statistics[MAX];
	bool cmp(pair<double, int> a, pair<double, int> b)
	{
	if (a.first > b.first)
	{
	return true;
	}
	if (a.first == b.first)
	{
	if (a.second < b.second)
	{
	return true;
	}
	}
	return false;
	}
	vector<int> solution(int N, vector<int> stages) {
	for (int stage : stages)
	{
	for (int i = 1; i <= stage; i++)
	{
	statistics[i].second++;
	}
	statistics[stage].first++;
	}
	vector<pair<double, int>> failureRates;
	for (int i = 1; i <= N; i++)
	{
	if (statistics[i].first == 0)
	{
	failureRates.push_back({ 0, i });
	}
	else
	{
	failureRates.push_back({ double(statistics[i].first) / double(statistics[i].second), i });
	}
	}
	sort(failureRates.begin(), failureRates.end(), cmp);
	vector<int> answer;
	for (pair<double, int> ratio : failureRates)
	{
	answer.push_back(ratio.second);
	}
	return answer;
	}

view raw .cpp hosted with ❤ by GitHub

 

개발환경:Visual Studio 2017

 

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