Submission #810457

#	Time	Username	Problem	Language	Result	Execution time	Memory
810457		Warinchai	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	40 ms	6176 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>
using namespace std;
vector<pair<int,int> >v;
vector<int> find_subset(int l, int u,vector<int> w) {
    for(int i=0;i<w.size();i++){
        v.push_back({w[i],i});
    }
    sort(v.begin(),v.end());
    deque<pair<int,int> >dq;
    int i=0;
    long long sum=0;
    while(i<v.size()){
        //cerr<<"push back"<<i<<endl;
        dq.push_back(v[i]);
        sum+=v[i].first;
        //cerr<<"sum:"<<sum<<endl;
        //cerr<<"sums:"<<endl;
        while(sum>u){
            //cerr<<sum<<endl;
            sum-=dq.front().first;
            dq.pop_front();
        }
        //cerr<<"remaining"<<endl;
        //for(int i=0;i<dq.size();i++){
          //  cerr<<dq[i].second<<" ";
        //}
        //cerr<<endl;
        if(sum>=l){
            vector<int>ans;
            for(int i=0;i<dq.size();i++){
                ans.push_back(dq[i].second);
            }
            return ans;
        }
        i++;
    }
    return vector<int>(0);
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:6:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 |     for(int i=0;i<w.size();i++){
      |                 ~^~~~~~~~~
molecules.cpp:13:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     while(i<v.size()){
      |           ~^~~~~~~~~
molecules.cpp:31:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |             for(int i=0;i<dq.size();i++){
      |                         ~^~~~~~~~~~

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