What the compiler errors? What does it mean?

Question

The program is output right answer, but the compiler is going errors:

#include <stdio.h>

int main() {

char* str="Grr";
str="Lion";

scanf("%s\n");

printf("%s\n", str);

return 0;
}

Answer 1

Clear @Martin Tylor thanks.Then you have to declare char pointer to store the input from the user ,then this char pointer will be the argument for scanf
char *string[100];
scanf("%s",string);

Answer 2

Here scanf is without argument?

Answer 3

It turns out - yes

Answer 4

Which arguments will be correct then?

Answer 5

The input will be given by the user you don't know what is the string that will be given in each case you are tested for.So i think scanf is not the good function to use for string or array of char in c.