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Little chief has his own restaurant in the city. There are N workers there. Each worker has his own salary. Once, chief decided to equalize all workers, that is, he wants to make salaries of all workers to be equal. But for this goal he can use only one operation: choose some worker and increase by 1 salary of each worker, except the salary of the chosen worker.

In other words, the chosen worker is the loser, who will be the only worker, whose salary will be not increased during this particular operation.

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But loser-worker can be different for different operations, of course. Chief can use this operation as many times as he wants. But he is a busy man. That's why he wants to minimize the total number of operations needed to equalize all workers. Your task is to find this number. The first line of the input contains an integer T denoting the number of test cases.

The description of T test cases follows.

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The first line of each test case contains a single integer N denoting the number of workers. The second line contains N space-separated integers W 1W 2For each test case, output a single line containing the minimum number of operations needed to equalize all workers.

Fetching successful submissions. Program should read from standard input and write to standard output. After you submit a solution you can see your results by clicking on the [My Submissions] tab on the problem page. Below are the possible results:. CodeChef was created as a platform to help programmers make it big in the world of algorithmscomputer programmingand programming contests.

At CodeChef we work hard to revive the geek in you by hosting a programming contest at the start of the month and two smaller programming challenges at the middle and end of the month.

We also aim to have training sessions and discussions related to algorithmsbinary searchtechnicalities like array size and the likes. Apart from providing a platform for programming competitionsCodeChef also has various algorithm tutorials and forum discussions to help those who are new to the world of computer programming.

Try your hand at one of our many practice problems and submit your solution in the language of your choice. Preparing for coding contests were never this much fun! Receive points, and move up through the CodeChef ranks. Use our practice section to better prepare yourself for the multiple programming challenges that take place through-out the month on CodeChef.

Here is where you can show off your computer programming skills. Take part in our 10 days long monthly coding contest and the shorter format Cook-off and Lunchtime coding contests. Put yourself up for recognition and win great prizes. We use cookies to improve your experience and for analytical purposes. Read our Privacy Policy and Terms to know more.

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You consent to our cookies if you continue to use our website. The Minimum Number Of Moves. Input The first line of the input contains an integer T denoting the number of test cases. Output For each test case, output a single line containing the minimum number of operations needed to equalize all workers. Chief can equalize all salaries in 3 turns: Turn ID IDs of involved workers Salaries after the move 1 1 2 2 3 3 2 1 2 3 4 3 3 1 3 4 4 4 Example Case 2.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Skip to content. Permalink Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Branch: master. Find file Copy path. RyanFehr Completed a search algorithm called minimum loss 54af Jun 3, Raw Blame History. Then because we have the stipulation that we must buy the house before we can sell it we should verify that the buy price we are using is a price that occurred in a year prior to the sell price year.

We can accomplish this by using a map that will be at most size n and will store distinct key,value pairs where the key is the price and the value is the year.

Your class should be named Solution. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Initial Thoughts: We can sort the array to reduce the number of comparisons since. Then because we have the. We can.Welcome to The Riddler.

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Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. There are two types: Riddler Express for those of you who want something bite-size and Riddler Classic for those of you in the slow-puzzle movement.

If you need a hint or have a favorite puzzle collecting dust in your attic, find me on Twitter. Andrea and Barry both exercise every day on their lunch hour on a path that runs alongside a parkway. Andrea walks north on the path at a steady 3 mph, while Barry bikes south on the path at a consistent 15 mph, and each travels in their original direction the whole time — they never turn around and go back the other way.

The speed limit on the parkway is the same in both directions and vehicle traffic flows smoothly in both directions exactly at the speed limit.

Find the winner of a game where scores are given as a binary string

In order to pass the time while they exercise, both Andrea and Barry count the number of cars that go past them in both directions and keep daily statistics. After several months of keeping such stats, they compare notes. The ratio for me was 1-to-1 — the number of cars that passed me going south was the same as the number that passed me going north. Submit your answer. From Al Zimmermann, inspired by the work of mathematician John Conway, a specific shuffling problem:. Suppose you have a shuffled deck containing 13 cards.

Each card has a number from 1 to 13 and each number appears on exactly one card. Clearly, the number of reversals depends on the initial order of the cards.

What is the largest number of reversals that you might have to do? What order are the cards in before you start shuffling the maximum-reversal deck? Last week, you began with one token, and I began with two tokens, and we played a game of skill that unfolded over a number of rounds.

The winner of each round got to steal one token from the loser. The game itself ended when one of us was out of tokens — that person lost. Further, you were better than me at this game and won each round two-thirds of the time and lost one-third of the time. What was the probability that you would win this game? Call your chance to win the game P1 when you have one token and P2 when you have two tokens.

Our specific solution is pointed at by the blue lines:.All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.

We've compiled frequently asked questions about the novel coronavirus at the center of the current pandemic.

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Each section includes links to trusted health organizations. First things first: The coronaviruses are a family of viruses whose symptoms can range from the common cold to something more serious and potentially lethal, and a new coronavirus is currently spreading across the planet, affecting the daily lives of many.

It causes a disease called COVID, which can lead to death, particularly for the elderly and people with serious chronic medical conditions. There are currently no vaccines or antiviral treatments available.

More than countries and territories, including the United States, have confirmed cases of the infection since the initial outbreak, and on March 11, the World Health Organization declared it a pandemic. What are its symptoms? Additional symptoms may include aches and pains, nasal congestion, runny nose, sore throat, and diarrhea.

Severity of the symptoms range from mild to life-threatening—about 1 in 5 people who are infected require hospital care. How do I get tested? They'll also help determine the safest way to receive your test.

More specific guidelines vary from state to state. NBC News has a handy guide here. Also, if you or a loved one are very sick e. How does it spread?

find the winner andrea and maria hackerrank solution

According to current knowledge, though, the coronavirus that causes COVID is mainly spread from person to person through respiratory droplets. How can we prevent it? Practice social distancing by increasing the space between you and other people. That means staying home as much as you can, especially if you feel sick.

Disinfect frequently touched surfaces like keyboards, doorknobs, and light switches every day. Cover coughs and sneezes with the inside of your elbow or a tissue. Throw the tissue away immediately and wash your hands.

find the winner andrea and maria hackerrank solution

When you're out in public, wear a cloth facemask not the kind meant for healthcare workers; see this guide for making your own. How is coronavirus different from the flu? While there are some similarities between the symptoms of COVID and the flu most notably fever and dry cough one of the biggest differences is that we know significantly less about COVID The flu has an R0 value of 1.Our task was to convert the hour time format to hour.

The entire code was only 5-lines. Furthermore in the comments Andre Glauser gave a one-line solution to the problem! First — replace method — simply replaces the first parameter with the second parameter in the given string. In our case, it looks for AM or PM characters and replaces them with empty space.

Second — is already familiar method from part one — split. It will iterate existing array and return a new one without changing the specified array. It takes a callback function with three parameters, but here we use only two — currentValue and index, and object as second parameter.

Again, we will not look at logic, because it has already been done in part one. It searches for a match between a RegExp and a given string, returns a Boolean value depending on whether there was a match or not. Our next challenge — not difficult, but quite interesting! Given five positive integers, find the minimum and maximum values that can be calculated by summing exactly four of the five integers.

Then print the respective minimum and maximum values as a single line of two space-separated long integers.

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Here we have an array of five numbers, and our goal is to return a string with only two numbers-the maximum sum of four, and the minimum sum of four. For the first time you can think about counting all the numbers with each other — and this is really a bad way to solve the problem. But what if I tell you that we can solve it with just one line of code! We use the reduce method of the array. It takes two arguments — a callback function and an initial value, which can be a string, a number, an object, or whatever you like.

And then returns a new value without changing the specified array. Next, as I promised, we will write only one line of code, which will give us the desired line with two numbers. If you are not familiar with the ES6 spread operator, here is a simple example of using it:. Also take a look at template literals. And our line we can rewrite in ES5 as:.

So whole code now looks like:. We solved another problem. Sign in. Solving challenges from HackerRank with JavaScript part 2. Vladislav Stepanov Follow. JavaScript Hackerrank Programming Ecmascript 6.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

find the winner andrea and maria hackerrank solution

Skip to content. Permalink Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Branch: master. Find file Copy path. No definitions found in this file. Raw Blame History. They have a counter set to N.

How could you modify the protocol to improve the definition of the chromosomes within the cells

Louise gets the first turn and the turns alternate thereafter. In the game, they perform the following operations. If N is not a power of 2, they reduce the counter by the largest power of 2 less than N. If N is a power of 2, they reduce the counter by half of N. The resultant value is the new N which is again used for subsequent operations.

The game ends when the counter reduces to 1, i. Given N, your task is to find the winner of the game. It's a given that this binary number starts with 1.

Counter game

You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Short Description: Write a program to decide the winner in the counter game:. Louise and Richard play a game.Given a binary string representing the scores of a Volleyball match. The task is to find the winner of the match according to below conditions:.

Case I : When one of the team scores 15 points first and the second team has scored less than 15 points. Case II : When both of the team scores 14 points then reset count of both to zero and for each zero or one increment their count and simultaneously check if abs count[0] — count[1] is equal to 2, if this happens then it means any one of the team had scored two more points than its opponent and will be the winner.

You can than find the winner on the value of count[0] and count[1]. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above. Writing code in comment? Please use ide. Find the winner of a game where scores are given as a binary string Number of Counterclockwise shifts to make a string palindrome Program to implement FLAMES game Split the given string into Primes : Digit DP Find lexicographically smallest string in at most one swaps Remove odd frequency characters from the string Longest palindrome formed by concatenating and reordering strings of equal length Longest Palindrome in a String formed by concatenating its prefix and suffix Minimum letters to be removed to make all occurrences of a given letter continuous Check whether the given string is Palindrome using Stack Count maximum occurrence of subsequence in string such that indices in subsequence is in A.

The task is to find the winner of the match according to below conditions: In volleyball, the two teams play with each other and the team which scores 15 points first will be the winner except the case when both teams have reached to 14 points.

Practice Python

In the case when both teams have reached 14 points then the team maintaining a lead of two points will be the winner. Python 3 program for predicting winner. This code is contributed by. Load Comments.


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