Submission #997007

#	Time	Username	Problem	Language	Result	Execution time	Memory
997007		Icelast	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	36 ms	7276 KiB

molecules

#include "molecules.h"
#include <iostream>
#include <bits/stdc++.h>
#define ll long long
using namespace std;
const ll maxn = 2*1e5+5, INF = 4e18+9;

std::vector<int> find_subset(int low, int high, std::vector<int> w) {
    int n = w.size();
    vector<pair<ll, ll>> a(n+1);
    for(int i = 0; i < n; i++){
        a[i+1] = {w[i], i};
    }
    sort(a.begin()+1, a.end());
    int r = 0;
    ll sum = 0;
    vector<int> ans;
    for(int l = 1; l <= n; l++){
        r = max(l-1, r);
        if(sum >= low && sum <= high){
            for(int i = l; i <= min(r, n); i++){
                ans.push_back(a[i].second);
            }
            return ans;
        }
        while(r < n && sum < low){
            sum += a[r+1].first;
            r++;
            if(sum >= low && sum <= high){
                for(int i = l; i <= r; i++){
                    ans.push_back(a[i].second);
                }
                return ans;
            }
        }
        sum -= a[l].first;
    }
    return std::vector<int>(0);
}

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