제출 #997083

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
997083		codefox	Detecting Molecules (IOI16_molecules)	C++17	컴파일 에러	0 ms	0 KiB

molecules

#include<bits/stdc++.h>

using namespace std;

#define pii pair<int, int>

int[] find_subset(int l, int u, int[] w)
{
	vector<pii> nums;
	for (int i = 0; i < n; i++) nums.push_back({w[i], i});
	sort(nums.begin(), nums.end());
	int left=0, right=0;
	long long sum = 0;
	while (sum <= l)
	{
		sum += nums[right].first;
		right++;
	}
	right--;	
	sum -= nums[right].first;
	while (sum <= u)
	{
		sum += nums[right].first;
		right++;
		sum -= nums[left].first;
		left++;
	}
	right--;
	sum -= nums[right].first;
	left--;
	sum -= nums[left].first;

	if (sum >= l)
	{ac
		int ans[right-left];
		for (int i = left; i < right; i++)
		{
			ans[i-left] = nums[i].second;
		}
		return ans;
	}
	else 
	{
		int ans[0];
		return ans;
	}
}

컴파일 시 표준 에러 (stderr) 메시지

molecules.cpp:7:4: error: structured binding declaration cannot have type 'int'
    7 | int[] find_subset(int l, int u, int[] w)
      |    ^~
molecules.cpp:7:4: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
molecules.cpp:7:4: error: empty structured binding declaration
molecules.cpp:7:7: error: expected initializer before 'find_subset'
    7 | int[] find_subset(int l, int u, int[] w)
      |       ^~~~~~~~~~~