Compilare: main.cpp: In function 'int main()': main.cpp:54:25: warning: array subscript has type 'char' [-Wchar-subscripts] 54 | }else if(pri[v[i]]){ | ~~~^ main.cpp:55:46: warning: array subscript has type 'char' [-Wchar-subscripts] 55 | while(cnt2 > 0 && pri[op[cnt2 - 1]] >= pri[v[i]]){ | ~~~~~~~~~~~^ main.cpp:55:59: warning: array subscript has type 'char' [-Wchar-subscripts] 55 | while(cnt2 > 0 && pri[op[cnt2 - 1]] >= pri[v[i]]){ | ~~~^ main.cpp: In function 'int calc(int, int, char)': main.cpp:23:1: warning: control reaches end of non-void function [-Wreturn-type] 23 | } | ^