Submission #995720

#	Time	Username	Problem	Language	Result	Execution time	Memory
995720		kokoue	Detecting Molecules (IOI16_molecules)	C++14	69 / 100	34 ms	4156 KiB

molecules

#include<bits/stdc++.h>
#define maxn 1000000
using namespace std;
//set<long long> is;
unordered_map<int,bool> is;
unordered_map<long long,long long> idx;
vector<int> find_subset(int l,int u,vector<int> w)
{
    int n=w.size();
    is[0]=1;
    idx[0]=0;
    int sum=0;
    bool fl=0;
    int mx=0;
    vector<pair<int,int>> a;
    for(int i=0;i<n;i++) a.push_back({w[i],i});
    sort(a.begin(),a.end());
    vector<int> res;
    int ll=0,r=0;
    for(int i=0;i<n;i++)
    {
        sum+=a[i].first;
        while(sum>u)
        {
            sum-=a[ll].first;
            ll++;
        }
        if(l<=sum && sum<=u)
        {
            for(int j=ll;j<=i;j++) res.push_back(a[j].second);
            return res;
        }
    }
    res.clear();
    return res;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:13:10: warning: unused variable 'fl' [-Wunused-variable]
   13 |     bool fl=0;
      |          ^~
molecules.cpp:14:9: warning: unused variable 'mx' [-Wunused-variable]
   14 |     int mx=0;
      |         ^~
molecules.cpp:19:14: warning: unused variable 'r' [-Wunused-variable]
   19 |     int ll=0,r=0;
      |              ^

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