#include <bits/stdc++.h> using namespace std; void solve() { int n, m; cin >> n >> m; vector<int> a(n), b(m); for(int &x : a) cin >> x; for(int &y : b) cin >> y; for(int msk = 1 ; msk < (1 << m) ; ++msk) { int sum = 0; for(int i = 0 ; i < m ; ++i) { if((msk >> i) & 1) { sum += b[i]; } } if(sum == a[0]) { cout << "YES\n"; return; } } cout << "NO\n"; } int main() { ios::sync_with_stdio(0), cin.tie(0), cout.tie(0); #ifndef ONLINE_JUDGE #else #endif freopen("bank.in", "r", stdin); freopen("bank.out", "w", stdout); int tc = 1, cs = 1; // cin >> tc; while(tc--){ solve(); } return 0; }

bank.cpp: In function 'int main()':
bank.cpp:36:17: warning: unused variable 'cs' [-Wunused-variable]
   36 |     int tc = 1, cs = 1;
      |                 ^~
bank.cpp:33:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |     freopen("bank.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:34:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |     freopen("bank.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~