Submission #982600

#	Time	Username	Problem	Language	Result	Execution time	Memory
982600		MarwenElarbi	Detecting Molecules (IOI16_molecules)	C++17	0 / 100	1 ms	348 KiB

molecules

#include<bits/stdc++.h>
//#include "molecules.h"
using namespace std;
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")
#define fi first
#define se second
#define ll long long
#define pb push_back
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
std::vector<int> find_subset(int l, int u, std::vector<int> w){
    int n=w.size();
    sort(w.begin(),w.end());
    vector<int> res;
    long long sum=0;
    vector<int> nabba;
    for (int i = 0; i < n; ++i)
    {
        sum+=w[i];
        res.pb(i);
        if(sum>l){
            if(sum<=u) return res;
            sum-=w[i];
            res.pop_back();
            break;
        }
    }
    reverse(res.begin(),res.end());
    vector<int> ans;
    bool test=false;
    for (int i = n-1; i >= 0; --i)
    {
        if(res.empty()) break;
        ans.pb(i);
        sum+=w[i];
        sum-=w[res.back()];
        res.pop_back();
        if(sum>=l){
            test=true;
            break;
        }
    }
    if(!test) return nabba;
    for (int i = 0; i < res.size(); ++i)
    {
        ans.pb(res[i]);
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:44:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |     for (int i = 0; i < res.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