Submission #1204553

#	Time	Username	Problem	Language	Result	Execution time	Memory
1204553		Bui_Quoc_Cuong	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
using namespace std;
/*
    tìm tập i1, i2, ... , im

    L <= wi1 + wi2 + ... + wim <= R
    wmax - wmin <= R - L
*/
bitset <(int)5e5> dp;
vector<int> find_subset(int L,int R,vector<int> w)
{
    int n = w.size()-1;
    dp[0] = 1;
    for(int i=0;i<=n;i++)
    {
        dp|= dp << w[i];
    }

    vector<pair<int,int>> wec;
    for(int i=0;i<=n;i++) wec.push_back({w[i], i});
    sort(wec.begin(),wec.end());

    int sum=-1;
    for(int i=L;i<=R;i++)
    {
        if(dp.test(i))sum=i;
    }

    vector<int> res;
    for(int i=n;i>=0;i--)
    {
        int val=wec[i].first;
        int id=wec[i].second;
        if(sum>=val && dp.test(sum - val))
        {
            sum-= val;
            res.push_back(id);
        }
    }
    sort(res.begin(),res.end());

    return res;
}

Compilation message (stderr)

molecules.cpp:9:1: error: 'bitset' does not name a type
    9 | bitset <(int)5e5> dp;
      | ^~~~~~
molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:13:5: error: 'dp' was not declared in this scope
   13 |     dp[0] = 1;
      |     ^~
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
      |         ^~~~