Submission #739558

#	Time	Username	Problem	Language	Result	Execution time	Memory
739558		Abrar_Al_Samit	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	44 ms	5940 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"
using namespace std;


vector<int> find_subset(int l, int u, vector<int> w) {
    int n = w.size();

    vector<int>id(n);
    iota(id.begin(), id.end(), 0);
    sort(id.begin(), id.end(), [&] (int i, int j) {
        return w[i] < w[j];
    });

    if(w[id[0]]>u) return vector<int>(0);

    vector<int>ret;

    long long cur = 0;

    int j = -1;
    for(int i=0; i<n; ++i) {
        ret.push_back(id[i]);
        cur += w[id[i]];
        if(cur>=l) {
            if(cur>u) {
                ret.pop_back();
                cur -= w[id[i]];
                j = i;
                break;
            } else {
                return ret;
            }
        }
    }

    if(j==-1) return vector<int>(0);

    int at = 0;
    while(j<n && cur<l) {
        ret.push_back(id[j]);
        cur += w[id[j]];
        ++j;
        cur -= w[ret[at]];
        ++at;
    }   

    if(cur<l) ret.clear();
    else ret = vector<int>(ret.begin()+at, ret.end());
    return ret;
}

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