Compare two strings, whether they are equal or not.
Implement simple rotation cypher
Set the array elements whose value is 13 to 0
Sum of odd numbers in a matrix
Reverse a matrix
Solve expression I
Find the sides of an isosceles triangle when given its area and height from its base to apex
Sum positive elements of matrix.
Count given word x in text.
Form a square matrix from four square sub-matrices
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