how to initialize char array using pointers?

Question

Could some one share why below program crashes?

void main() {

    char *arr = "abcd";
    arr[3] = 'f';
}

Answer 1

There is a difference between char * and char []! So this should work:

#include <stdio.h>

int main() {

    char arr[] = "abcd";
    arr[3] = 'f';

    return 0;
}

For further information see:

What is the difference between char s[] and char *s?