Answer Posted / c.p.senthil

description for previous answer posted again

n = 5
loop 1: i = 0 to 4
loop 2: i = 5 to 0

Loop variables => i j k j exp k exp
.....*............0 5 spaces, 1 stars (5-0) (2*0)+1
....***...........1 4 spaces, 3 stars (5-1) (2*1)+1
...*****..........2 3 spaces, 5 stars (5-2) (2*2)+1
..*******.........3 2 spaces, 7 stars (5-3) (2*3)+1
.*********........4 1 spaces, 9 stars (5-4) (2*4)+1
***********.......5 0 spaces, 11 stars(5-5) (2*5)+1
.*********........4 1 spaces, 9 stars (5-4) (2*4)+1
..*******.........3 2 spaces, 7 stars (5-3) (2*3)+1
...*****..........2 3 spaces, 5 stars (5-2) (2*2)+1
....***...........1 1 spaces, 3 stars (5-1) (2*1)+1
.....*............0 5 spaces, 1 stars (5-0) (2*0)+1

..........generalising expressions => (n-i) (2*i)+1

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