Submission #476220

#	Time	Username	Problem	Language	Result	Execution time	Memory
476220		kkk	Bank (IZhO14_bank)	C++17	100 / 100	342 ms	172776 KiB

bank

#include<cstring>
#include<iostream>
#define endl '\n'
using namespace std;
long long a[100], b[100], dp[(1<<20)+2][21], n, m;

bool rec(long long pos,long long mask,long long num)
{
    if(pos==n)return 1;

    if(dp[mask][pos]!=-1)return dp[mask][pos];

    bool rez=0;

    for(int i=0;i<m;i++)
    {
        if((mask&(1<<i))==0)
        {
            if(b[i]<num)
            {
               rez=max(rez, rec(pos,(mask|(1<<i)),num-b[i]));
            }
           if(b[i]==num)
           {
               rez=max(rez, rec(pos+1,(mask|(1<<i)),a[pos+1]));
           }
        }
    }
    return dp[mask][pos]=rez;

}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    long long i,j;

    memset(dp,-1,sizeof(dp));

    cin>>n>>m;

    for(i=0;i<n;i++)cin>>a[i];
    for(i=0;i<m;i++)cin>>b[i];

    if(rec(0,0,a[0]))cout<<"YES"<<endl;
    else cout<<"NO"<<endl;

}

Compilation message (stderr)

bank.cpp: In function 'bool rec(long long int, long long int, long long int)':
bank.cpp:29:25: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   29 |     return dp[mask][pos]=rez;
      |            ~~~~~~~~~~~~~^~~~
bank.cpp: In function 'int main()':
bank.cpp:39:17: warning: unused variable 'j' [-Wunused-variable]
   39 |     long long i,j;
      |                 ^

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