Compilare: main.cpp:8:6: warning: built-in function 'exp' declared as non-function [-Wbuiltin-declaration-mismatch] 8 | char exp[100000]; | ^~~ main.cpp: In function 'int solve(int)': main.cpp:97:1: warning: no return statement in function returning non-void [-Wreturn-type] 97 | } | ^ main.cpp: In function 'int eval(int, int, char)': main.cpp:29:1: warning: control reaches end of non-void function [-Wreturn-type] 29 | } | ^