Submission #721602

#	Time	Username	Problem	Language	Result	Execution time	Memory
721602		ovidiush11	Bank (IZhO14_bank)	C++14	19 / 100	5 ms	212 KiB

bank

#include <bits/stdc++.h>
using namespace std;

const int N = 1e3+5;

bool check(vector<int> x,vector<int> y,int s,int k,vector<int> left,vector<int> right)
{
    if(s < 0)return 0;
    if(s == 0)
    {
        if(x.size() == 1)return 1;
        int suma = 0;
        for(int i = 0;i < x.size()/2;i++)suma += x[i];
        vector<int> tp;
        for(int i = 0;i < x.size()/2;i++)tp.push_back(x[i]);
        if(check(tp,left,suma,0,vector<int>(),vector<int>()))
        {
            tp.clear();
            suma = 0;
            for(int i = x.size()/2;i < x.size();i++)suma += x[i];
            for(int i = x.size()/2;i < x.size();i++)tp.push_back(x[i]);
            if(check(tp,right,suma,0,vector<int>(),vector<int>()))return 1;
        }
        return 0;
    }
    for(int i = k;i < y.size();i++)
    {
        if(i > k && y[i] == y[i-1]){right.push_back(y[i]);continue;}
        left.push_back(y[i]);
        if(check(x,y,s-y[i],i+1,left,right))return 1;
        left.pop_back();
        right.push_back(y[i]);
    }
    return 0;
}

int n,m;
vector<int> v,a,b;

bool sum(int s,int k)
{
    if(s < 0)return 0;
    if(s == 0)
    {
        int suma = 0;
        for(int i = 0;i < a.size()/2;i++)suma += a[i];
        if(check(a,v,suma,0,vector<int>(),vector<int>()))return 1;
        return 0;
    }
    for(int i = k;i < m;i++)
    {
        if(i > k && b[i] == b[i-1])continue;
        v.push_back(b[i]);
        if(sum(s-b[i],i+1))return 1;
        v.pop_back();
    }
    return 0;
}

int main()
{
    cin>>n>>m;
    a.resize(n);
    b.resize(m);
    for(int i = 0;i < n;i++)cin>>a[i];
    for(int i = 0;i < m;i++)cin>>b[i];
    sort(a.begin(),a.end());
    sort(b.begin(),b.end());
    a.push_back(0);
    int s = 0;
    for(int i = 0;i < n;i++)s += a[i];
    if(sum(s,0))cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
    return 0;
}

Compilation message (stderr)

bank.cpp: In function 'bool check(std::vector<int>, std::vector<int>, int, int, std::vector<int>, std::vector<int>)':
bank.cpp:13:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |         for(int i = 0;i < x.size()/2;i++)suma += x[i];
      |                       ~~^~~~~~~~~~~~
bank.cpp:15:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |         for(int i = 0;i < x.size()/2;i++)tp.push_back(x[i]);
      |                       ~~^~~~~~~~~~~~
bank.cpp:20:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |             for(int i = x.size()/2;i < x.size();i++)suma += x[i];
      |                                    ~~^~~~~~~~~~
bank.cpp:21:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |             for(int i = x.size()/2;i < x.size();i++)tp.push_back(x[i]);
      |                                    ~~^~~~~~~~~~
bank.cpp:26:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for(int i = k;i < y.size();i++)
      |                   ~~^~~~~~~~~~
bank.cpp: In function 'bool sum(int, int)':
bank.cpp:46:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for(int i = 0;i < a.size()/2;i++)suma += a[i];
      |                       ~~^~~~~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29