Submission #995681

#	Time	Username	Problem	Language	Result	Execution time	Memory
995681		kokoue	Detecting Molecules (IOI16_molecules)	C++14	0 / 100	168 ms	65536 KiB

molecules

#include<bits/stdc++.h>
using namespace std;
set<long long> is;
unordered_map<long long,long long> idx;
vector<int> find_subset(int l,int u,vector<int> w)
{
    int n=w.size();
    is.insert(0);
    idx[0]=0;
    int sum=0;
    bool fl=0;
    for(int i=1;i<n;i++)
    {
        for(auto e:is)
        {
            is.insert(e+w[i]);
            idx[e+w[i]]=i;
            if(e+w[i]>=l && e+w[i]<=u)
            {
                sum=e+w[i];
                fl=1;
                break;
            }
        }
        if(fl) break;
    }
    int h=0;
    vector<int> res;
    while(sum!=0)
    {
        res.push_back(idx[sum]);
        sum-=w[idx[sum]];
    }
    return res;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:27:9: warning: unused variable 'h' [-Wunused-variable]
   27 |     int h=0;
      |         ^

• Subtask 1: 0 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31