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Saturday, April 24, 2010
Given an array of size n. It contains numbers in the range 1 to n. Each number is present at least once except for 2 numbers. Find the missing numbers.
if the array is mutuable then try to put every number at its place.. and make it zero at the older place. go through the array and find out the indices with zero..
OR
find sum of the numbers and sum of the square of the numbers and apply the formulae
sum of the numbers = n(n+1)/2 sum of the square of the numbers = n(n+1)(2n+1)/6
if the array is mutuable then try to put every number at its place.. and make it zero at the older place. go through the array and find out the indices with zero..
ReplyDeleteOR
find sum of the numbers and sum of the square of the numbers and apply the formulae
sum of the numbers = n(n+1)/2
sum of the square of the numbers = n(n+1)(2n+1)/6
give me the relation connecting a+b ,a-b and a^2+b^2...
Deletethanks...
give me the relation between a+b,a-b and a^2+b^2..
Delete