dynamic array

[gantsooj]

I need some help for dynamic array.
I want to delete an element from massiv pointer.
i wrote in devc++.
thnks for ur help

        int *xe, *ye;
        xe = new int[OBJ_NUM];
        ye = new int[OBJ_NUM];

        for(int j = 0; j < OBJ_NUM; j++)
        {
          if(xe[j] <= 1 || ye[j] <= 1 || xe[j] >= 10 || ye[j] >= 10)
           { 
              xe[j] = 0;
              ye[j] = 0;
             
              if(xe[j] == 0 || ye[j] == 0)
              {  
                 delete xe[j];         //error
                 delete ye[j];         //error
                 OBJ_NUM--;       
               }
            }
         }

For example
int st[10]
and I want to remove the element at st[8], give it a total of 9 elements, now.

This's, I only want only 9 elements in my array now!

[Denis]

Do you understand what you want?
If it's, please see my variant

#include <vector>

        int *xe, *ye;
        xe = new int[OBJ_NUM];
        ye = new int[OBJ_NUM];

        std::vector<int> xeContainer;
        std::vector<int> yeContainer;

        for(int j = 0; j < OBJ_NUM; j++)
        {
          if(!(xe[j] <= 1 || ye[j] <= 1 || xe[j] >= 10 || ye[j] >= 10))
           { 
              xeContainer.push_back(xe[j])
              yeContainer.push_back(ye[j]);          
            }
             else
            {
                   OBJ_NUM--;
             }
         }
          delete []xe;
          delete []ye;

[Denis]

According to your question about deleting array element in heap.
It's impossible. If you want to do it in any case you have to create new array and delete old one.

[gantsooj]

i just need to delete n found number of elements without using vector, but using pointer.

for(int j = 0; j < OBJ_NUM; j++)
{
  for(int i = 0; i < SCAN_NUMBER ; i++)
  {
    if(obs_x[j][i] <= 1 || obs_y[j][i] <= 1 || obs_x[j][i] >= l_x-1 || obs_y[j][i] >= l_y-1) 
    {  
      delete[] obs_x[i];  //it's working wrong
      delete[] obs_y[i];  //delete j-th obs if found in if
      OBJ_NUM--;          //end decrease number of obs
    }  
  }
}

[Denis]

According to your question about deleting array element in heap.

But you can create a new array. Then delete old one

[guestgulkan]

For example
int st[10]
and I want to remove the element at st[8], give it a total of 9 elements, now.

This's, I only want only 9 elements in my array now!

You can't chop peices out of an array like that.
You would have to create a new array of the new size and copy across the elements you need from the old array.
Then delete the old array (as suggested by Denis)