# Category: Programming Puzzles

## Generate Random Input from an Array according to given Probabilities

Write an algorithm to generate any one of the given N numbers according to given probabilities.

## Generate Fair Results from a Biased Coin

In this post, we will discuss how to generate fair results from a biased coin which prefer one side of the coin over another, and returns TAILS with p probability and HEADS with (1-p) probability

## Division of Two Numbers using Binary Search Algorithm

In this post, we will discuss division of two numbers (integer or decimal) using Binary Search Algorithm.

## Set both elements of a binary array to 0 in single line

Given an binary array of size two having alteast one element as zero, write a single line function to set both its elements to zero. Use of ternary operator and direct assignment of elements are not allowed.

## Generate numbers from 1 to 7 with equal probability using specified function

Write an algorithm to generate numbers from 1 to 7 with equal probability using a specified function which produces random numbers between 1 to 5 with equal probability.

## Implement Ternary Operator Without Using Conditional Expressions

In this post, we will see how to implement ternary-like operator in C without using conditional expressions like ternary operator, if–else expression or switch-case statements.

## Find if a number is even or odd without using any conditional statement

Given a number, find out if it is even or odd without using any conditional statement (if-else) or ternary operator.

## Determine if two integers are equal without using comparison and arithmetic operators

In this post, we will discuss how to determine if two integers are equal without using comparison operators (==, !=, < , >, < =, >=) & arithmetic operators (+, -, *, /, %).

## Generate Desired Random Numbers With Equal Probability

Write an algorithm to generate random numbers from 1 to 12 with equal probability using a given function which generates random numbers from 1 to 6 with equal probability.

## Single line expressions to swap two integers in Java

Given two integers, swap them in single line in Java.     There are many expressions to swap two variables in single line in Java. Notice that all below methods can also be used with C/C++.   1. Using Bitwise XOR(^) Operator