In a right angle triangle given area 'A'
one arm=x, another arm=2x
then find the value of x.
For example, area A=400 then x=20;
Extract leading non-zero digit
convert matrix to single column
Min of a Matrix
Who invented zero?
Given a 4x4 matrix, swap the two middle columns
Find the logic
Simple date to serial no. conversion
Is it an Armstrong number?
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