Hello, Srishti Saha. It is generally not recommended to demonstrate the solution formula within the Test Suite; it would be better to just specify the numerical values for the "correct" answers in the Test Suite. See also Problem 44631 for more discussion. —DIV
Test Suite flawed: should account for inherent imprecision of floating-point numbers.
The Answer to Life, the Universe, and Everything
Number of digits in an integer
Beginner's Problem - Squaring
Basics: counting digits of a number irrespective of the sign
basic matrix operations: rotate and find sum of diagonal elements of the resultant matrix
Product of all elements in an array
Find NaNs in the matrix
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