제출 #1265037

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1265037		chf	Detecting Molecules (IOI16_molecules)	C++20	컴파일 에러	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
using namespace std;
vector<int> find_subset(int l,int u,vector<int>w)
{
	int n=w.size();
	vector<pair<int,int>> a;
	for(int i=0;i<n;i++)a.push_back({w[i],i});
	sort(a.begin(),a.end());
	long long sum=0;
	int l=0;
	for(int r=0;r<n;r++)
	{
		sum+=a[r].first;
		while(sum>u&&l<=r)
		{
			sum-=a[l].first;
			l++;
		}
		if(sum>=l&&sum<=u)
		{
			vector<int> ans;
			for(int i=l;i<=r;i++)ans.push_back(a[i].second);
			return ans;
		}
	}
	return {};
}

컴파일 시 표준 에러 (stderr) 메시지

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:10:13: error: declaration of 'int l' shadows a parameter
   10 |         int l=0;
      |             ^
molecules.cpp:3:29: note: 'int l' previously declared here
    3 | vector<int> find_subset(int l,int u,vector<int>w)
      |                         ~~~~^
molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~