Submission #740506

#	Time	Username	Problem	Language	Result	Execution time	Memory
740506		JakobZorz	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	53 ms	6172 KiB

molecules

#include "molecules.h"
#include <algorithm>
using namespace std;
#define ll long long

vector<int> find_subset(int l, int u, vector<int> w) {
    ll sum=0;
    vector<pair<int,int>> w2;
    for(int i=0;i<w.size();i++)
        w2.push_back({w[i],i});
    sort(w2.begin(),w2.end());
    
    int m1=0;
    for(int m2=0;m2<w.size();m2++){
        sum+=w2[m2].first;
        while(sum>u){
            sum-=w2[m1].first;
            m1++;
        }
        if(sum>=l){
            vector<int> res;
            for(int i=m1;i<=m2;i++)
                res.push_back(w2[i].second);
            return res;
        }
    }
    return {};
}

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 i=0;i<w.size();i++)
      |                 ~^~~~~~~~~
molecules.cpp:14:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int m2=0;m2<w.size();m2++){
      |                  ~~^~~~~~~~~

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