Problem	exponentiate_ex
User	fwyr
Submission Time	2023-02-18 22:31:45
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

exponentiate_ex.cpp: In function ‘__int128 read()’:
exponentiate_ex.cpp:12:27: error: ‘ch’ was not declared in this scope; did you mean ‘c’?
12 | else x = x * 10 + ch - '0';
| ^~
| c