Submission #599638

#	Time	Username	Problem	Language	Result	Execution time	Memory
599638		daisy2	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	48 ms	7144 KiB

molecules

#include<iostream>
#include<algorithm>
#include "molecules.h"
using namespace std;
pair<long long,long long> p[200005];
std::vector<int> find_subset(int l, int u, std::vector<int> w) {

    vector<int> r;
    for(int j=0;j<w.size();j++)
    {
       p[j].first=w[j];
       p[j].second=j;
    }
    sort(p,p+w.size());

    long long t=0,le=0;

    for(int ri=0;ri<w.size();ri++)
    {
        t+=p[ri].first;
         while(le<ri && t>u)
        {
            t-=p[le].first;
            le++;
        }

        if(t>=l && t<=u)
        {
            for(int i=le;i<=ri;i++)
            {
                r.push_back(p[i].second);
            }
            break;
        }

    }
    return r;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:9:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int j=0;j<w.size();j++)
      |                 ~^~~~~~~~~
molecules.cpp:18:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for(int ri=0;ri<w.size();ri++)
      |                  ~~^~~~~~~~~

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