Submission #982606

#	Time	Username	Problem	Language	Result	Execution time	Memory
982606		MarwenElarbi	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	43 ms	4676 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){
    vector<pair<int,int>> v;
    int n=w.size();
    for (int i = 0; i < n; ++i)
    {
        v.pb({w[i],i});
    }
    sort(v.begin(),v.end());
    ll sum=0;
    int j=0;
    vector<int> ans;
    for (int i = 0; i < w.size(); ++i)
    {
        sum+=v[i].fi;
        while(sum>u){
            sum-=v[j].fi;
            j++;
        }
        if(sum>=l){
            for (int k = j; k <= i; ++k)
            {
                ans.pb(v[k].se);
            }
            break;
        }
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     for (int i = 0; i < w.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