Back to basics 18 - justification
Remove white space from the string
Calculate the area of a triangle between three points
Sum of odd numbers in a matrix
Summation of array
match 2 string
Given a 4x4 matrix, swap the two middle columns
given 4x4 matrix swap the two middle columns
MATCH THE STRINGS (2 CHAR) very easy
give-nth-decimal-place-of-pi up to 100 digits
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