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>
#define int long long
#define all(x) x.begin(), x.end()
#define allr(x) x.rbegin(), x.rend()
#define sz size()
#define yes "YES"
#define no "NO"
#define IOI ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define pf push_front
#define pb push_back
#define S second
#define F first
using namespace std;
const int N = 200 + 5;
const int NN = 1e5;
const int mod = (1e9 + 7);
const int inf = 1e18;
int a[N], x[N], used[22][2222222];
int n, m;
vector<int> g[1111];
void rec(int pos, int mask) {
if (pos == n + 1) {
cout << yes;
exit(0);
}
if (used[pos][mask]) return;
used[pos][mask] = 1;
for (auto& cur : g[x[pos]]) {
if (cur & mask) {
continue;
}
rec(pos + 1, cur | mask);
}
}
void legenda_ne_umret() {
cin >> n >> m;
for (int i = 1; i <= n; i++) {
cin >> x[i];
}
for (int i = 1; i <= m; i++) {
cin >> a[i];
}
for (int mask = 1; mask < (1 << m); mask ++) {
int sum = 0;
for (int i = 0; i < m; i++) {
if ((1 << i) & mask) {
sum += a[i + 1];
}
}
if (sum <= 1000) {
g[sum].pb(mask);
}
}
rec(1, 0);
cout << no;
}
signed main() {
IOI;
// freopen("maze.in", "r", stdin);
// freopen("maze.out", "w", stdout);
/////////////////////////////////////////////
int t = 1;
// cin >> t;
for (int i = 1; i <= t; i++) {
// cout << "Case " << i << ":\n";
legenda_ne_umret();
cout << '\n';
}
}
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