Problem	calc
User	PyAce
Submission Time	2025-08-28 15:55:25
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

calc.cpp: In function ‘int main()’:
calc.cpp:13:12: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
13 | if (c == "ADD") {
| ^~~~~
calc.cpp:16:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
16 | }else if (c == "UNDO") {
| ^~~~~~