Submission #525990

#	Time	Username	Problem	Language	Result	Execution time	Memory
525990		gs21045	Detecting Molecules (IOI16_molecules)	C++14	9 / 100	1 ms	332 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"
#define endl '\n'
#define F first
#define S second
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
vector<int> find_subset(int l,int u,vector<int> w)
{
    int n=w.size();
    vector<pair<int,int>> ww;
    vector<ll> ssum;
    for(int i=0; i<n; i++) ww.push_back({w[i],i});
    sort(ww.begin(),ww.end());
    ll sum=0;
    for(int i=0; i<n; i++)
    {
        sum+=ww[i].F;
        ssum.push_back(sum);
    }
    ll idx=0;
    while(idx<n && ssum[idx]<l) ++idx;
    if(idx<n && ssum[idx]<=u)
    {
        vector<int> result;
        for(int i=0; i<=idx; i++) result.push_back(ww[i].S);
        return result;
    }
    for(int i=0; i<n; i++)
    {
        while(idx<n && ssum[idx]-ssum[i]<l) ++idx;
        if(idx<n && ssum[idx]-ssum[i]<=u)
        {
            vector<int> result;
            for(int j=0; j<=idx; j++) result.push_back(ww[j].S);
            return result;
        }
    }
    return vector<int> ();
}
/*
int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int n,l,u;
    cin>>n>>l>>u;
    vector<int> w(n);
    for(int i=0; i<n; i++) cin>>w[i];
    vector<int> result=find_subset(l,u,w);
    cout<<(int)result.size()<<endl;
    for(int i=0; i<(int)result.size(); i++) cout<<result[i]<<' ';
    return 0;
}
*/

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