Compilare: user.cpp: In function ‘int main()’: user.cpp:50:27: warning: format ‘%c’ expects argument of type ‘char*’, but argument 2 has type ‘int’ [-Wformat=] char cr;scanf("%c", cr); ^ user.cpp:58:23: warning: format ‘%c’ expects argument of type ‘char*’, but argument 2 has type ‘int’ [-Wformat=] scanf("%c", cr); ^ user.cpp:63:31: warning: format ‘%c’ expects argument of type ‘char*’, but argument 2 has type ‘int’ [-Wformat=] scanf("%c", cr); ^ user.cpp:50:27: warning: ‘cr’ is used uninitialized in this function [-Wuninitialized] char cr;scanf("%c", cr); ^