이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
using namespace std;
//------------------------------DEFINE------------------------------
//******************************************************************
#define IOS ios_base::sync_with_stdio(false); cin.tie(0),cout.tie(0)
#define ll long long
#define pb push_back
#define F first
#define S second
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
#define endl "\n"
//******************************************************************
//----------------------------FUNCTION------------------------------
//******************************************************************
ll gcd(ll a,ll b){
if(a>b) swap(a,b);
if(a==0) return a+b;
return gcd(b%a,a);
}
ll lcm(ll a,ll b){
return a/gcd(a,b)*b;
}
bool is_prime(ll n){
ll k=sqrt(n);
if(n==2) return true;
if(n<2||n%2==0||k*k==n) return false;
for(int i=3;i<=k;i+=2){
if(n%i==0){
return false;
}
}
return true;
}
//*****************************************************************
//--------------------------MAIN-CODE------------------------------
const int mxn=15+5;
int t=1,n,m,cost[mxn],arr[mxn];
bool dp[1<<mxn][mxn];
void solve(){
//freopen("bank.in","r",stdin);
//freopen("bank.out","w",stdout);
cin>>m>>n;
for(int i=0;i<m;i++){
cin>>cost[i];
}
for(int i=0;i<n;i++){
cin>>arr[i];
}
vector<int>vt[1005];
for(int mask=1;mask<(1<<n);mask++){
int sum=0;
for(int i=0;i<n;i++){
if(mask&(1<<i)){
sum+=arr[i];
}
}
if(sum<=1000){
vt[sum].pb(mask);
}
}
dp[0][0]=true;
for(int mask=0;mask<1;mask++){
for(int i=0;i<1;i++){
for(int sub:vt[cost[i]]){
if(!(sub&mask)){
dp[mask|sub][i]=true;
if(i==m-1){
cout<<"YES"<<endl;
return;
}
}
}
}
}
for(int mask=1;mask<(1<<n);mask++){
for(int i=0;i<m;i++){
if(!dp[mask][i]) continue;
for(int sub:vt[cost[i+1]]){
if(!(sub&mask)){
dp[mask|sub][i+1]=true;
if(i+1==m-1){
cout<<"YES"<<endl;
return;
}
}
}
}
}
cout<<"NO"<<endl;
}
int main(){
IOS;
//cin>>t;
while(t--){
solve();
}
return 0;
}
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