#include<bits/stdc++.h> using namespace std; int main(){ int n , m; cin >> n >> m; vector<int> persons(n); vector<int> notes(m); for(int i = 0; i < n; i++) cin >> persons[i]; for(int i = 0; i < m; i++) cin >> notes[i]; vector<pair<int , int>> dp(1<<m); for(int s = 0; s < (1<<m); s++){ dp[s].first = -1; dp[s].second = 0; for(int b = 0; b < n; b++){ if(s&&(1<<b)){ int lastIndex = dp[s^(1<<b)].first; int value = dp[s^(1<<b)].second; if(notes[b] + value == persons[lastIndex]){ if(dp[s].first < lastIndex + 1){ dp[s].first = lastIndex + 1; dp[s].second = 0; } } else if(notes[b] + value < persons[lastIndex]){ if(dp[s].first < lastIndex){ dp[s].first = lastIndex; dp[s].second = value + notes[b]; } } } } } // cout << "test: " << dp[(1<<m) - 1].first << endl; if(dp[(1<<m) - 1].first == n) cout << "YES"; else cout << "NO"; return 0; }

bank.cpp: In function 'int main()':
bank.cpp:17:22: warning: '<<' in boolean context, did you mean '<'? [-Wint-in-bool-context]
   17 |              if(s&&(1<<b)){
      |                    ~~^~~~