Pawan's blog

 Problem Statement : Given a square matrix, calculate the absolute difference between the sums of its diagonals. For example, the square matrix   is shown below: 1 2 3 4 5 6 9 8 9 The left-to-right diagonal =  . The right to left diagonal =  . Their absolute difference is  . Return int : the absolute diagonal difference Input Format The first line contains a single integer,  , the number of rows and columns in the square matrix  . Each of the next   lines describes a row,  , and consists of   space-separated integers  . Output Format Return the absolute difference between the sums of the matrix's two diagonals as a single integer. Sample Input 11 2 4 4 5 6 10 8 -12 Sample Output 15 Explanation The primary diagonal is: 11 5 -12 Sum across the primary diagonal: 11 + 5 - 12 = 4 The secondary diagonal is: 4 5 10 Sum across the secondary diagonal: 4 + 5 + 10 = 19 Difference: |4 - 19| = 15 Program : public...

  Problem statement : Given an array of integers, calculate the ratios of its elements that are   positive ,   negative , and   zero . Print the decimal value of each fraction on a new line with     places after the decimal. Note:  This challenge introduces precision problems. The test cases are scaled to six decimal places, though answers with absolute error of up to   are acceptable. Example There are   elements, two positive, two negative and one zero. Their ratios are  ,   and  . Results are printed as: 0.400000 0.400000 0.200000 Print Print the ratios of positive, negative and zero values in the array. Each value should be printed on a separate line with   digits after the decimal. The function should not return a value. Input Format The first line contains an integer,  , the size of the array. The second line contains   space-separated integers that describe  . Sample Input 6 -...