Compilare: main.cpp: In function 'long long int eval_exp(char*, int)': main.cpp:36:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] 36 | if(ptr = urm_elem(&a[0], "+-", n)) /// verifica daca exista un plus/minus in intervalul dat care nu este intre paranteze | ^~~~ main.cpp:36:12: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 36 | if(ptr = urm_elem(&a[0], "+-", n)) /// verifica daca exista un plus/minus in intervalul dat care nu este intre paranteze | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:42:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] 42 | if(ptr = urm_elem(&a[0], "*/", n)) | ^~~~ main.cpp:42:12: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 42 | if(ptr = urm_elem(&a[0], "*/", n)) | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:61:13: warning: control reaches end of non-void function [-Wreturn-type] 61 | eval_exp(a, n) ; | ~~~~~~~~^~~~~~