c++ - how can I assign value into 2-D array by using their address? -

i'm going rewrite program using pointer & dynamic array

but 2-d array part, here question

this original code:

  (int index = 0; index < 12; index++)   {      sorted[index][0] = sum[index];      sorted[index][1] = index+1;  } 

and rewrite :

for (int index = 0; index < 12; index++) {     *(*sorted+index) = *(sum+index);     *((*sorted+index)+1) = index + 1; } 

i have tried , problem occur in first part of assign *(*sorted+index) , *((*sorted+index)+1)

what problem going on? there no error code, descrition just:

exception thrown @ 0x00f47379 in ass2 q3.exe: 0xc0000005: access violation writing location 0xce13e05c. unhandled exception @ 0x00f47379 in ass2 q3.exe: 0xc0000005: access violation writing location 0xce13e05c.

you have problem in these 2 lines:

*(*sorted+index) = *(sum+index); *((*sorted+index)+1) = index + 1; 

you need move sorted pointer index offset, , should write (sorted + index) can value stored in address *(sorted + index) first element *(*(sorted + index)). same thing must applied second line too, 2 lines should be:

*(*(sorted+index)) = *(sum+index); *(*(sorted+index)+1) = index + 1; 

i suggest read more pointer arithmetic.