## The task of calendar gaps merging

Let’s suppose you are working in a company and it is developing an electronic calendar. The calendar has a function that shows when various programming teams will be busy at a meeting.   Those periods when the team is busy are marked on the calendar as time ranges, for example, from 10:00 to…

## The task of the ball with helium in the car

Imagine that you are in a car where a balloon filled with helium is tied to the floor. The windows are closed. You push the gas pedal. What happens to the ball: will it move forward, backwards or will it remain in the same position?   What happens to the ball?   Move…

## The task of Apple shares

This task was given to candidates during the interviews at Apple. You need to create a function that returns that maximum profit from a single deal with one share (firstly purchase, then sale). The input data is an array of yesterday quotations with Apple shares’ prices.    Here is the info about the array:  …

## In the darkroom, you are handed a deck of cards.

This task was once popular at interviews in JP Morgan Chase. Surely, once in the darkroom, you will just take your smartphone and use the screen or a flashlight. However, this task had created before the era of smartphones and can be solved without observing the cards.   With an imperious deck division, it…

## How far can you deliver cargo using N trucks?

You have a fleet of 50 trucks. Each of them is fully fueled and can cover 100 km. How far can you deliver a certain item with their help? What will be the formula if you have N trucks at your disposal?   Not all people understand what is the task about: geographically…