/* Function |insert| inserts block of ints |toInsert|, having |dim2| elements, i

Question

/* Function |insert| inserts block of ints |toInsert|, having |dim2| elements, into the
// middle of block of ints |blk|, which has |dim1| elements. The inserted block starts at
// offset |offset|. Data in |blk| are moved down to make room; no data is lost.
// |insert| makes a larger block to accommodate the inserted data, and returns a pointer
// to this larger block, which the caller is expected to use instead of |blk|.
*/

It does not print the correct tmp variable I do not why
int *insert(int *blk, int *toInsert, int dim1, int dim2, int offset) {
   int *tmp = calloc(dim1+dim2, sizeof(int));
   int i = 0;
   do{
      tmp[i++] = *blk++;
      printf("%d", tmp[i]);
   }while(offset--);
return tmp;
}

Explanation / Answer

First of all in the given code you are updating the i then trying to print the location.

      tmp[i++] = *blk++;
      printf("%d", tmp[i]);

which should be like :

    tmp[i] = *blk++;
      printf("%d", tmp[i]);

      i++;

still the logic is not correct as it is not inserting the elements of toInsert from the offset

Try this instead:

int *insert(int *blk, int *toInsert, int dim1, int dim2, int offset) {
   int *tmp = calloc(dim1+dim2, sizeof(int));
   int i = 0,j;

   //First lets insert the elements till offset from blk to temp

   for(j=0; j<offset; j++,i++)

   {

      tmp[i] = blk[j];
      printf("%d", tmp[i]);

   }

   //Then insert the toInsert elements

for(int k=0; k<dim2; k++,i++)

{

      tmp[i]=toInsert[k];

      printf("%d", tmp[i]);

   }

//Then insert the remaining elements from blk

for( ; j<dim1; j++, i++)

{

      tmp[i]=blk[j];

      printf("%d",tmp[i]);

}

return tmp;
}

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