Problem	guessproblem4
User	user123
Submission Time	2023-06-27 22:39:19
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

guessproblem4.cpp: In function ‘const char* solve(int)’:
guessproblem4.cpp:2:12: error: ‘NULL’ was not declared in this scope
2 | return NULL;
| ^~~~
guessproblem4.cpp:1:1: note: ‘NULL’ is defined in header ‘<cstddef>’; did you forget to ‘#include <cstddef>’?
+++ |+#include <cstddef>
1 | const char* solve(int T) {