bank.cpp: In function 'int main()':
bank.cpp:20:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
20 | for(register int i = 0; i < N; ++i) cin >> people[i];
| ^
bank.cpp:21:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
21 | for(register int i = 0; i < M; ++i) cin >> money[i];
| ^
bank.cpp:26:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
26 | for(register int mask = 0; mask < (1 << M); ++mask){
| ^~~~
bank.cpp:28:20: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
28 | for(register int j = 0; j < M; ++j){
| ^