Why does this small C program crash?

Question

The program is:

#include 
#include 
int main(void) {
    char *a=\"abc\",*ptr;
    ptr=a;
    ptr++;
    *ptr=\'k\';
    printf(\"         


        

Answer 1

The reason is that your string "abc" lives in a read-only area of memory. It gets put there by the linker. You try to change it in your program, and all bets are off.