There are 4 people who want to cross a bridge. They each take 1, 2, 5 and 8 minutes. Only 2 people can cross at a time and they take as long as the slowest person. What is the fastest time you can get everyone across? Then I was asked to write the mathematical equation to determine the trade-off point between each of the 2 approaches to solving this.
Given a text file containing the text for Hamlet (/usr/share/file.txt), return the top 5 most frequent words with count.
You some amount of chocolate with you, you have to give 2 chocolate to your friend. But in-between you and your friend there r 7 gates. At each gate you have to give the man at gate 50%of what you gave and he will return a single cake back. How many will be bring to first gate?
You are on vacation to your aunty house. There you will be going jogging at morning or tennis at eve. Due to tried you can't do it both at a same day. 10 morning you are idle and 17 evening too you are idle. And 13 day you played either tennis or jockey. Find the number of day you spend at your aunty house?
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In the 11 batsmen the one who starts gets wicket followed by all the batsmen getting wickets which player will be at the end of the match without getting wicket.
hackerrank easy, basic java and web dev knowledge, sql
Given a two dimensional array of positive integers, write an algorithm that will find any initial indices that have a value of 0 and replace their entire row and column with zeroes.
count the number of duplicates in a binary tree in O(n) time O(1) space.
What was your most challenging bug you fixed?
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