CODECHEF NOV13 PRETNUM

Problem Statement

Given a range a to b, we have to all numbers which have prime number of divisors.

Eg: In the range 1 to 10 , the numbers are 2, 3, 4, 5, 7, 9

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CODECHEF COOK38 RRMATRIX

Problem Statement

Let 'A' be a R x C  Matrix. Elements in 'A' are filled from 1 to R*C in row-major order. 'B' is also a R x C Matrix where the elements are filled in column-major order.


Find number of cells which satisfy the property A_i,j ==  B_i,j.

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