Submission #91090

#	Time	Username	Problem	Language	Result	Execution time	Memory
91090		Aydarov03	Bank (IZhO14_bank)	C++14	0 / 100	3 ms	1060 KiB

bank

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

int a[25] , b[25];
vector <int> v[20005];
int n , m;


void rec( int id = 1 , int OR = 0)
{
    if( id == n + 1)
    {
        cout << "YES";
        exit(0);
    }

    for(auto c : v[ a[id] ] )
    {
        if( c & OR == 0 )
        {
//            cout << id << " " << c << endl;
            rec( id+1 , OR | c );
        }
    }



}



main()
{
    cin >> n >> m;

    for(int i = 1; i <= n; i++)
        cin >> a[i];
    for(int i = 1; i <= m; i++)
        cin >> b[i];



    for(int mask = 1; mask < (1<<m); mask++)
    {
        int sum = 0;
        for(int i = 0; i < m; i++)
        {
            if( mask & ( (1<<i) ) )
                sum += b[i+1];
        }
        v[sum].push_back( mask );
    }

    for(int i = 1; i <= n; i++)
    {
        if( v[a[i]].size() == 0 )
            return cout << "NO" , 0;
    }

    rec();

    cout << "NO";
}

Compilation message (stderr)

bank.cpp: In function 'void rec(int, int)':
bank.cpp:19:20: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
         if( c & OR == 0 )
                 ~~~^~~~
bank.cpp: At global scope:
bank.cpp:32:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^

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