Submission #1241134

#	Time	Username	Problem	Language	Result	Execution time	Memory
1241134		erering	Detecting Molecules (IOI16_molecules)	C++20	100 / 100	41 ms	6840 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"
using namespace std;
#define pb push_back
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector<pair<int,int>> vec;
    for(int i=0;i<w.size();i++)vec.pb({w[i],i});
    sort(vec.begin(),vec.end());
    long long sum=0;
    long long suff[w.size()];
    for(int i=vec.size()-1;i>=0;i--){
        suff[i]=vec[i].first;
        if(i<vec.size()-1)suff[i]+=suff[i+1];
    }
    vector<int> ans;
    for(int i=0;i<vec.size();i++){
        if(sum>=l && sum<=u)return ans;
        int le=i,ri=vec.size()-1;
        while(le<ri){
            int mid=(le+ri)/2;
            if(suff[mid]+sum>u)le=mid+1;
            else ri=mid;
        }
        if(sum+suff[le]>=l && sum+suff[le]<=u){
            for(int j=vec.size()-1;j>=le;j--)ans.pb(vec[j].second);
            return ans;
        }
        sum+=vec[i].first;
        ans.pb(vec[i].second);
    }
    return {};
}

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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