Submission #1182145

#	Time	Username	Problem	Language	Result	Execution time	Memory
1182145		ziyad_alharbi	Bank (IZhO14_bank)	C++20	71 / 100	1095 ms	2160 KiB

bank

#include<bits/stdc++.h>
using namespace std;
const int N=(1<<21)+5;
int a[25],b[25],n,m;
bool dp[25][N],vs[25][N];
bool f(int x,int ms)
{
    if(x==n)return 1;
    if(vs[x][ms])return dp[x][ms];
    bool bl=0;
    for(int i=1;i<=ms;i++)
    {
        if((i&ms)==i)
        {
            int sm=0;
            for(int j=0;j<m;j++)if((i&(1<<j)))sm+=b[j];
            if(sm==a[x])
            {
                bl=bl|f(x+1,ms-i);
            }
        }
    }
    vs[x][ms]=1;
    return dp[x][ms]=bl;
}
signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin>>n>>m;
    for(int x=0;x<n;x++)cin>>a[x];
    for(int x=0;x<m;x++)cin>>b[x];
    if(f(0,(1<<m)-1))cout<<"YES\n";
    else cout<<"NO\n";
    return 0;
}

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