messy.cpp: In function 'void restore_permutation(int, int, int, int*)':
messy.cpp:8:5: error: 'add_element' was not declared in this scope
8 | add_element(element0);
| ^~~~~~~~~~~
messy.cpp:17:5: error: 'compile_set' was not declared in this scope
17 | compile_set();
| ^~~~~~~~~~~
messy.cpp:23:13: error: 'check_element' was not declared in this scope
23 | if (check_element(query)) {
| ^~~~~~~~~~~~~
messy.cpp:37:17: error: 'check_element' was not declared in this scope
37 | if (check_element(query)) {
| ^~~~~~~~~~~~~
messy.h:1:9: warning: #pragma once in main file
1 | #pragma once
| ^~~~
messy_c.h:1:9: warning: #pragma once in main file
1 | #pragma once
| ^~~~