Submission #493674

#	Time	Username	Problem	Language	Result	Execution time	Memory
493674		Iwanttobreakfree	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	54 ms	7156 KiB

molecules

#include "molecules.h"
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
vector<int> find_subset(int l, int u, vector<int> w) {
    int n=w.size();
    vector<pair<long long int,int> >mol(n);
    for(int i=0;i<n;i++)mol[i]={w[i],i};
    sort(mol.begin(),mol.end());
    long long int ans=0,j=0;
    for(int i=0;i<n;i++){
        while(j<n&&mol[j].first+ans<=u){
            ans+=mol[j].first;
            j++;
        }
        //cout<<ans<<' ';
        if(ans>=l){
            vector<int> sol;
            for(int k=i;k<j;k++)sol.push_back(mol[k].second);
            return sol;
        }
        ans-=mol[i].first;
    }
    return vector<int>(0);
}
/*int main(){
    vector<int> v={5,5,6,6};
    int l=15,r=16;
    vector<int> ans=find_subset(l,r,v);
    for(int x:ans)cout<<x<<' ';
}
*/

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