Sir i not understood inside loop in problem function abcd pattern problem and also not under stood column loop

#1

sir i not understood inside loop in problem function abcd pattern problem and also not under stood column loop

#2

So suppose value of n is 5,
so in first row you have to print 5 columns.
in 2nd row you have to print 4columns.
in 3rd row you have to print 3 columns.
in 4th row you have to print 2 columns.
in 5th row you have to print 1 column.
This is being taken care by cnt_alphabet
And in column, we are just printing from A to the number of columns we have to print.

#3

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