Submission #1184029

#	Time	Username	Problem	Language	Result	Execution time	Memory
1184029		hmms127	은행 (IZhO14_bank)	C++20	Compilation error	0 ms	0 KiB

bank

#include <bits/stdc++.h>
using namespace std;
#define f1(n) for(int i=0;i<n;i++)
#define f3(n) for(int j=0;j<n;j++)
#define speed ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define int long long
#define pb push_back
int setbit(int n,int idx,int val){return (val ? ((1LL<<idx)|n):(~(1LL<<idx)&n));}
int getbit(int n,int idx){return ((n>>idx)&1LL);}
int n,a[21],b[21],dp[21][1<<20];
bool rec(int idx,int mak){
  if(idx==n)return 1;
  int& ret=dp[idx][mak];
  if(ret!=-1)return ret;
  int newmask=mak;
  for(int mask=0;mask<(1<<m);++mask){
    vector<int> v;bool valid=true;int sm=0;
    for(int i=0;i<m;i++){
      if(getbit(mask,i)){
        if(getbit(mak,i)){
          valid=false;
          break;
        }
        else v.pb(i),sm+=b[i];
      }
    }
    if(valid&&sm==a[idx]){
      for(auto it:v)newmask=setbit(newmask,it,1);
      if(rec(idx+1,newmask))return ret=true;
      //for(auto it:v)newmask=setbit(newmask,it,0);
    }
  }
  return ret=false;
}
int32_t main()
{
     speed;
     int tt=1,cnt=1;//cin>>tt;
     while(tt--){
       //freopen("bank.in","r",stdin);
       //freopen("bank.out","w",stdout);
      cin>>n>>m;
      f1(n)cin>>a[i];f1(m)cin>>b[i];
      memset(dp,-1,sizeof dp);
      cout<<(rec(0,0) ? "YES":"NO")<<e;
     }
}

Compilation message (stderr)

bank.cpp: In function 'bool rec(long long int, long long int)':
bank.cpp:16:27: error: 'm' was not declared in this scope; did you mean 'tm'?
   16 |   for(int mask=0;mask<(1<<m);++mask){
      |                           ^
      |                           tm
bank.cpp: In function 'int32_t main()':
bank.cpp:42:15: error: 'm' was not declared in this scope; did you mean 'tm'?
   42 |       cin>>n>>m;
      |               ^
      |               tm
bank.cpp:45:38: error: 'e' was not declared in this scope; did you mean 'std::numbers::e'?
   45 |       cout<<(rec(0,0) ? "YES":"NO")<<e;
      |                                      ^
      |                                      std::numbers::e
In file included from /usr/include/c++/11/bits/max_size_type.h:37,
                 from /usr/include/c++/11/bits/ranges_base.h:38,
                 from /usr/include/c++/11/string_view:48,
                 from /usr/include/c++/11/bits/basic_string.h:48,
                 from /usr/include/c++/11/string:55,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from bank.cpp:1:
/usr/include/c++/11/numbers:122:27: note: 'std::numbers::e' declared here
  122 |   inline constexpr double e = e_v<double>;
      |                           ^