How could I reverse the increment order?

[28UMizwU]

How can i make this reverse the increment of the numbers?
for example if i input the shape for x and a size of 5 i want an output like this (dashes for spacing reference)
5---1
-2-2
--3
-4-2
5---1
instead my code ouputs this
1---1
-2-2
--3
-4-4
5---5

//x
    switch (shape){
    case 'x':
    for(int rows=-1;rows<=size;rows++) {
      for(int cols=1;size>=cols;cols++){
          if(rows==cols||cols==(size+1)-rows)cout<<rows;
            else cout<<" ";
      }
        cout<<endl;
   }break;
     
//b
    case 'b':
    for(int rows=1;rows<=size;rows++) {
      for(int cols=1;size>=cols;cols++){
          if(rows==cols)cout<<rows;
            else cout<<" ";
     }
        cout<<endl;
  }break;
    
//f
    case 'f':
    for(int rows=1;rows<=size;rows++) {
      for(int cols=1;size>=cols;cols++){
          if(cols==(size+1)-rows)cout<<rows;
            else cout<<" ";
     }
        cout<<endl;
  }break;
    }
    //Draw the shape

    
    //Exit
    return 0;
}

[lastchance]

Use an
if ... else if ... else
structure instead of your current lines 6 and 7.

One will write out rows, the other 'something' - rows.

You have a strange row range on line 4.

DON'T delete your posts after getting an answer. You have done this in multiple threads.