void my_strcpy(char*dest,char*src){
assert(dest != NULL);
assert(src != NULL);
while(*dest++=*src++)
{
*dest =*src;
}
}
int main(){
char arr[]="#########";
char arr2[]="bit";
printf("%s\n",arr);
my_strcpy(arr,arr2);
printf("%s\n",arr);
}