Submission #921955

#	Time	Username	Problem	Language	Result	Execution time	Memory
921955		HoriaHaivas	Detecting Molecules (IOI16_molecules)	C++14	31 / 100	2 ms	772 KiB

molecules

/*
    "care a facut teste cu Lattice reduction attack e ciudat"
    "linistiti va putin"
    - 2023 -
*/
#include<bits/stdc++.h>
#include<molecules.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
#pragma GCC optimize("Ofast")

using namespace std;

vector<int> rez;

struct sirelement
{
    int val;
    int poz;
};

vector<sirelement> v;

bool cmp (sirelement a, sirelement b)
{
    return a.val<b.val;
}

vector<int> find_subset(int l, int u, vector<int> w)
{
    int i;
    for (i=0; i<w.size(); i++)
    {
        v.push_back({w[i],i});
    }
    sort(v.begin(),v.end(),cmp);
    int pointer,s,j;
    s=0;
    pointer=0;
    for (i=0; i<v.size(); i++)
    {
        while (pointer<i)
        {
            s-=v[pointer].val;
            pointer++;
        }
        while (pointer<v.size() && s+v[pointer].val<=u)
        {
            s+=v[pointer].val;
            pointer++;
        }
        if (s>=l && s<=u)
        {
            for (j=i; j<pointer; j++)
                rez.push_back(v[j].poz);
            return rez;
        }
        else
        {
            s-=v[i].val;
        }
    }
    return rez;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:32:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for (i=0; i<w.size(); i++)
      |               ~^~~~~~~~~
molecules.cpp:40:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<sirelement>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |     for (i=0; i<v.size(); i++)
      |               ~^~~~~~~~~
molecules.cpp:47:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<sirelement>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |         while (pointer<v.size() && s+v[pointer].val<=u)
      |                ~~~~~~~^~~~~~~~~

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