Please Provide Me Approach For This Problem

#1

https://hack.codingblocks.com/app/contests/3141/456/problem

#2

hi @aknsut4598_c7470b5775dbdf92,
refer https://www.geeksforgeeks.org/pascal-triangle/

#3

hi @aknsut4598_c7470b5775dbdf92
You have reopened the doubt. Is there still anything unclear?

#4

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