Submission #108011

#	Time	Username	Problem	Language	Result	Execution time	Memory
108011		FiloSanza	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	66 ms	5672 KiB

molecules

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

using namespace std;

const auto NO = vector<int>(0);

vector<int> find_subset(int l, int u, vector<int> w) {
    vector<pair<int, int>> v(w.size());
    for(int i=0; i<(int)w.size(); i++) v[i] = {w[i], i};
    sort(v.begin(), v.end());
    
    long long sum = 0;
    int lo = 0, hi = 0;

    while(hi < (int)v.size() && lo <= hi){
        if(sum < l) sum += v[hi++].first;
        if(sum > u) sum -= v[lo++].first;
        
        if(sum >= l && sum <= u){
            vector<int> sol;
            for(int i=lo; i<hi; i++) sol.push_back(v[i].second);
            return sol;
        }
    }

    return NO;
}

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