Submission #1244967

#	Time	Username	Problem	Language	Result	Execution time	Memory
1244967		hmms127	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long

const int MN = 1e4+5;
const int MV = 1e4+5;
int dp[MV];

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    int n=w.size();
    
    vector<array<int,2>> v;
    for(int i=0;i<n;i++){
        v.push_back({w[i],i});
    }
    sort(v.begin(),v.end());
    int r=0;long long sm=0;
    for(int i=0;i<n;i++){
        while(r<n&&sm+v[r][0]<=u)sm+=v[r++][0];
        
        if(sm>=l){
            vector<int>ans;
            for(int j=i;j<r;j++)ans.push_back(v[j][1]);
            return ans;
        }
        
        sm-=a[i];
    }
    return {};
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:28:13: error: 'a' was not declared in this scope
   28 |         sm-=a[i];
      |             ^
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
      |         ^~~~