#include<iostream> using namespace std; int n,m,req[25],has[25]; bool dp[1100005],binrep[25]; int main () { scanf("%d%d",&n,&m); for(int i = 0; i < n; i++) { scanf("%d",&req[i]); } for(int i = 0; i < m; i++) { scanf("%d",&has[i]); } dp[0] = true; for(int i = 0; i < 1<<m; i++) { if(dp[i] == true) { for(int j = 0; j < m; j++) { binrep[j] = false; } int cnt = 0, tmp = i; while(tmp > 0) { binrep[cnt] = tmp%2; tmp/=2; cnt++; } int rem = 0; for(int j = 0; j < m; j++) { if(binrep[j] == true) rem += has[j]; } int amn = 0; while(amn < n && rem-req[amn] >= 0) { rem-=req[amn]; amn++; } if(amn == n && rem == 0) { printf("YES\n"); return 0; } if(amn < n) { for(int j = 0; j < m; j++) { if(binrep[j] == false && rem+has[j] <= req[amn]) dp[i+(1<<j)] = true; } } } } printf("NO\n"); return 0; }

bank.cpp: In function 'int main()':
bank.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |     scanf("%d%d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~
bank.cpp:8:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |         scanf("%d",&req[i]);
      |         ~~~~~^~~~~~~~~~~~~~
bank.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%d",&has[i]);
      |         ~~~~~^~~~~~~~~~~~~~