Submission #617756

#	Time	Username	Problem	Language	Result	Execution time	Memory
617756		Bench0310	Detecting Molecules (IOI16_molecules)	C++17	19 / 100	1 ms	300 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"

using namespace std;
typedef long long ll;

vector<int> find_subset(int L,int R,vector<int> w)
{
    int n=w.size();
    vector<array<int,2>> a(n);
    for(int i=0;i<n;i++) a[i]={w[i],i};
    sort(a.begin(),a.end());
    int c=0;
    ll s=0;
    while(c<n&&s<L)
    {
        c++;
        s+=a[n-c][0];
    }
    if(s<L) return {};
    ll t=0;
    for(int i=0;i<c;i++) t+=a[i][0];
    if(t>R) return {};
    int d=0;
    while(s>R)
    {
        s+=a[d][0];
        s-=a[n-1-d][0];
        d++;
    }
    assert(L<=s&&s<=R);
    vector<int> res;
    for(int i=0;i<d;i++) res.push_back(a[i][1]);
    for(int i=0;i<c-d;i++) res.push_back(a[n-1-i][1]);
    return res;
}

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