Submission #1226061

#	Time	Username	Problem	Language	Result	Execution time	Memory
1226061		edga1	Detecting Molecules (IOI16_molecules)	C++20	69 / 100	33 ms	4936 KiB

molecules

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

vector<int> find_subset(int l, int u, vector<int> w){
    int n=w.size();
    int ma=0;
    for(int i=0; i<n; i++){
        if(w[i]>=l && w[i]<=u) return vector<int> (1,i);
        if(w[i]<l) ma=1;
    }
    if(ma==0) return vector<int> (0);
    vector<int> mas(n+1,0),mis(n+1,0);
    vector<pair<int,int>> ws(n);
    for(int i=0; i<n; i++){
        ws[i]={w[i],i};
    }
    sort(ws.begin(),ws.end());
    for(int i=1; i<=n; i++){
        mis[i]=mis[i-1]+ws[i-1].first;
        mas[i]=mas[i-1]+ws[n-i].first;
    }
    for(int k=1; k<=n; k++){
        if(mas[k]>=l && mis[k]<=u){
            int sum=mis[k];
            int s=0;
            while(sum<l){
                sum-=ws[s].first;
                sum+=ws[n-s-1].first;
                s++;
            }
            vector<int> r;
            for(int i=s; i<k; i++) r.push_back(ws[i].second);
            for(int i=0; i<s; i++) r.push_back(ws[n-i-1].second);
            return r;
        }
    }
    return vector<int>(0);
}

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: 0 / 31