Submission #484463

#	Time	Username	Problem	Language	Result	Execution time	Memory
484463		_Body	Detecting Molecules (IOI16_molecules)	C++17	0 / 100	1 ms	288 KiB

molecules

#include "molecules.h"
//#include"grader.cpp"
#include<bits/stdc++.h>
using namespace std;
vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector<int>res;
    vector<pair<long long,int>>arr;
    int n=w.size();
    for(int i=0;i<n;i++)
    {
        if(w[i]>=l&&w[i]<=u)
        {
            res.push_back(i+1);
            return res;
        }
        if(w[i]<l)
        {
            arr.push_back({w[i],i});
        }
    }
    sort(arr.begin(),arr.end());
    long long sum=0;
    ///int l=0;
    deque<int>deq;
    bool is=false;
    for(int i=0;i<arr.size();i++)
    {
        deq.push_back(arr[i].second);
        sum+=arr[i].first;
        if(sum>=l&&sum<=u)
        {
            is=true;
            break;
        }
        if(sum>u)
        {
            while(sum>u)
            {
                sum-=(w[deq.front()]);
                deq.pop_front();
            }
            if(sum<=u&&sum>=l)
            {
                is=true;
                break;
            }
        }
    }
    if(!is)
    {
        return res;
    }
    for(auto x:deq)
        res.push_back((x+1));
    return res;
}
/*
4 15 17
6 8 8 7

*/

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:26:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for(int i=0;i<arr.size();i++)
      |                 ~^~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31