Compilare: user.cpp: In function ‘int main()’: user.cpp:30:20: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[100001]’ [-Wformat=] scanf("%s",&sir); ^ user.cpp: In function ‘int calculate(int, int, int)’: user.cpp:23:1: warning: control reaches end of non-void function [-Wreturn-type] } ^