Compilare: user.cpp: In function ‘int main()’: user.cpp:40:18: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2000000]’ [-Wformat=] scanf("%s",&a); ^ user.cpp:41:18: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2000000]’ [-Wformat=] scanf("%s",&b); ^