0_0_39542200_491.cpp: In function 'long long int read()':
0_0_39542200_491.cpp:4:17: error: 'getchar_unlocked' was not declared in this scope; did you mean '_getchar_nolock'?
4 | #define getchar getchar_unlocked
| ^~~~~~~~~~~~~~~~
0_0_39542200_491.cpp:23:19: note: in expansion of macro 'getchar'
23 | char ch = getchar();
| ^~~~~~~
|