Submission #170023

#	Time	Username	Problem	Language	Result	Execution time	Memory
170023		whttt	Detecting Molecules (IOI16_molecules)	C++14	0 / 100	2 ms	376 KiB

molecules

#include <iostream>
#include <vector>
#include <algorithm>
#define ll long long

using namespace std;

vector<ll> find_subset(int l, int u, vector<int> w){
    ll sum = 0;
    vector<ll> returnThis;
    vector<pair<ll, ll>> sol;
    for(ll i = 0;i < w.size();i++){
        sol.push_back({w[i],i});
    }
    sort(sol.begin(), sol.end());
    for(ll i = 0;i < sol.size();i++){
        sum += sol[i].first;
        //cout << sum << endl;
        if(sum <= u && sum >= l){
            for(ll j = 0;j <= i;j++){
                returnThis.push_back(sol[j].second);
            }
            return returnThis;
        } else if(sum > l){
            sum -= sol[i].first;
            for(ll j = i;j < w.size();j++){
                sum += sol[j].first-sol[j-i].first;
                if(sum <= u && sum >= l){
                    for(ll k = j-i+1;k <= i;k++){
                        returnThis.push_back(sol[k].second);
                    }
                    return returnThis;
                }
                if(j == sol.size()-1){
                    return {};
                }
            }
        }
    }
    return {};
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<long long int> find_subset(int, int, std::vector<int>)':
molecules.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ll i = 0;i < w.size();i++){
                  ~~^~~~~~~~~~
molecules.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ll i = 0;i < sol.size();i++){
                  ~~^~~~~~~~~~~~
molecules.cpp:28:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(ll j = i;j < w.size();j++){
                          ~~^~~~~~~~~~
molecules.cpp:36:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if(j == sol.size()-1){
                    ~~^~~~~~~~~~~~~~~

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