You are given a string that is formed from only three characters ‘a’, ‘b’, ‘c’. You are allowed to change atmost ‘k’ characters in the given string while attempting...
A rotation on a string is defined as removing first element and concatenating it at the end. Given N and an array of N strings.Your job is to predict...
Given L , R ( 1<=L,R <= 1000000000000000000) . Count the numbers in [L,R] such that each number satisfies two properties : 1. The total count of odd digits...
Special Prime
Given an integer N N<=10^50 Output the no. of pairs (x,y) such that 0<=x<=n 0<=y<=n F(x) +F(y) = Prime number F(x) = sum of digits of x Note :...
Particle Simulation
Given an integer(n) denoting the no. of particles initially and array of sizes of these particles. These particles can go into any number of simulations (possibly none). In one...
