Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:26:29: error: ‘stdin’ was not declared in this scope freopen ("pkinv.in","r",stdin); ^~~~~ user.cpp:26:34: error: ‘freopen’ was not declared in this scope freopen ("pkinv.in","r",stdin); ^ user.cpp:27:30: error: ‘stdout’ was not declared in this scope freopen ("pkinv.out","w",stdout); ^~~~~~ user.cpp:29:24: error: ‘scanf’ was not declared in this scope scanf ("%d%d",&n,&k); ^ user.cpp:48:31: error: ‘printf’ was not declared in this scope printf ("%d",bst[n][k]); ^ user.cpp:49:9: error: return-statement with no value, in function returning ‘int’ [-fpermissive] return ; ^~~~~~ user.cpp:65:21: error: ‘printf’ was not declared in this scope printf ("%d",nrt); ^