This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
/**
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PLATINUM OVERFLOW;
*/
///#define int long long
using namespace std;
vector<int>subs[1000+5],v1,v2;
int n,m;
int dp[20+5][(1<<21)];
bool slv(int idx=0,int msk=0){
///cout<<idx<<' '<<msk<<'\n';
if(idx==n)
return true;
if(dp[idx][msk]!=-1){
return dp[idx][msk];
}
bool ret=false;
for(int i=0;i<subs[v1[idx]].size();i++){
if(!(msk&subs[v1[idx]][i])){
ret=max(ret,slv(idx+1,msk|subs[v1[idx]][i]));
}
if(ret)
return dp[idx][msk]=ret;
}
return dp[idx][msk]=ret;
}
int32_t main()
{/**
freopen("arb2.in","r",stdin);
freopen("arb2.out","w",stdout);
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);*/
cin>>n>>m;
v1=vector<int>(n);
v2=vector<int>(m);
for(int i=0;i<n;i++)
cin>>v1[i];
for(int i=0;i<m;i++)
cin>>v2[i];
for(int i=1;i<(1<<m);i++){
int sum=0;
for(int j=0;j<m;j++){
if((1<<j)&i)
sum+=v2[j];
}
subs[sum].push_back(i);
}
memset(dp,-1,sizeof(dp));
if(slv())
cout<<"YES"<<'\n';
else
cout<<"NO"<<'\n';
return 0;
}
/**
1
8 2
abczzzzz
*/
Compilation message (stderr)
bank.cpp: In function 'bool slv(int, int)':
bank.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
27 | for(int i=0;i<subs[v1[idx]].size();i++){
| ~^~~~~~~~~~~~~~~~~~~~~
bank.cpp:32:32: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
32 | return dp[idx][msk]=ret;
| ~~~~~~~~~~~~^~~~
bank.cpp:34:24: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
34 | return dp[idx][msk]=ret;
| ~~~~~~~~~~~~^~~~
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