Submission #717383

#	Time	Username	Problem	Language	Result	Execution time	Memory
717383		tigar	Bank (IZhO14_bank)	C++14	25 / 100	1080 ms	300 KiB

bank

#include <bits/stdc++.h>

using namespace std;
int people[30], pay[30];
bool used[30];
int given[30];
int n, m;

bool rekurzivna(int covek, int k)
{
    //cout<<"-->"<<k<<endl;
    if(covek==n){return true;}
    bool ret=false;
    for(int i=0; i<m; i++)
    {
        if(!used[i])
        {
            //cout<<i<<endl;
            used[i]=true;
            given[covek]+=pay[i];
            //cout<<i<<" "<<given[covek]<<" "<<people[covek]<<" "<<pay[i]<<endl;
            if(given[covek]<people[covek])ret=(ret|rekurzivna(covek, k+1));
            else if(given[covek]==people[covek])ret=(ret|rekurzivna(covek+1, k+1));
            given[covek]-=pay[i];
            used[i]=false;
        }
        if(ret)break;
    }
    //cout<<"-->"<<k<<endl;
    return ret;
}

int main()
{
    #define name "bank"
    if(fopen(name".inp", "r")){
        freopen(name".inp", "r", stdin);
        freopen(name".out", "w", stdout);
    }

    ios_base::sync_with_stdio(); cin.tie(); cout.tie();

    cin>>n>>m;
    for(int i=0; i<n; i++)cin>>people[i];
    for(int j=0; j<m; j++)cin>>pay[j];
    if(rekurzivna(0, 0))cout<<"YES\n";
    else cout<<"NO\n";
    return 0;
}
/*1 8
9
1 1 1 1 1 1 1 1*/

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:37:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |         freopen(name".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:38:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |         freopen(name".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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