Submission #1248144

#	Time	Username	Problem	Language	Result	Execution time	Memory
1248144		escobrand	Bank (IZhO14_bank)	C++20	71 / 100	1095 ms	12652 KiB

bank

#include <bits/stdc++.h>

using namespace std;
#define all(v) v.begin(),v.end()
#define eb emplace_back
#define ll long long 
#define fi first
#define se second
int t,n,i,m,j;
const int lg = 21;
int a[lg+1],b[lg];
int dp[lg][1<<lg],mask,msk;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    
    cin>>n>>m;
    
    for(i = 1;i<=n;i++)cin>>a[i];
    for(i = 0;i<m;i++)cin>>b[i];
    a[0] = 1;
    dp[0][0] = 1;
    for(i = 1;i<=n;i++)
    {
      for(mask = 1;mask<(1<<m);mask++)
      {
        for(j = 0;j<m;j++)
        {
          if(mask>>j&1)
          {
            msk = mask ^ (1<<j);
            if(dp[i-1][msk] == a[i-1])
            {
              dp[i][mask] = b[j];
              break;
            }
            if(dp[i][msk] && dp[i][msk] + b[j] <= a[i])
            {
              dp[i][mask] = dp[i][msk] + b[j];
              break;
            }
          }
        }
        if(i == n && dp[i][mask] == a[n])
        {
          cout<<"YES";
          return 0;
        }
      }
    }cout<<"NO";
    
    return 0;
}

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