bank.cpp: In function 'void dfs(int, int, int, int, int)':
bank.cpp:8:9: error: 'cout' was not declared in this scope
cout << "YES";
^~~~
bank.cpp:8:9: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
from bank.cpp:1:
/usr/include/c++/7/iostream:61:18: note: 'std::cout'
extern ostream cout; /// Linked to standard output
^~~~
bank.cpp: In function 'int main()':
bank.cpp:26:5: error: 'cin' was not declared in this scope
cin >> n >> m;
^~~
bank.cpp:26:5: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
from bank.cpp:1:
/usr/include/c++/7/iostream:60:18: note: 'std::cin'
extern istream cin; /// Linked to standard input
^~~
bank.cpp:30:5: error: 'cout' was not declared in this scope
cout << "NO";
^~~~
bank.cpp:30:5: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
from bank.cpp:1:
/usr/include/c++/7/iostream:61:18: note: 'std::cout'
extern ostream cout; /// Linked to standard output
^~~~