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HackerRank Solutions

Angry Professor HackerRank Solution

Beautiful Days at the Movies HackerRank Solution in C, C++, Java, Python

A Discrete Mathematics professor has a class of students. Frustrated with their lack of discipline, the professor decides to cancel class if fewer than some number of students are present …

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Utopian Tree HackerRank Solution

Utopian Tree HackerRank Solution in C, C++, Java, Python

The Utopian Tree goes through 2 cycles of growth every year. Each spring, it doubles in height. Each summer, its height increases by 1 meter. A Utopian Tree sapling with …

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Designer PDF Viewer HackerRank Solution

Designer PDF Viewer HackerRank Solution in C, C++, Java, Python

When a contiguous block of text is selected in a PDF viewer, the selection is highlighted with a blue rectangle. In this PDF viewer, each word is highlighted independently.  There …

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The Hurdle Race HackerRank Solution

The Hurdle Race HackerRank Solution in C, C++, Java, Python

A video player plays a game in which the character competes in a hurdle race. Hurdles are of varying heights, and the characters have a maximum height they can jump. …

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Climbing the Leaderboard HackerRank Solution in C, C++, Java, Python

An arcade game player wants to climb to the top of the leaderboard and track their ranking. The game uses Dense Ranking, so its leaderboard works like this: The player with …

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Picking Numbers HackerRank Solution in C, C++, Java, Python

Given an array of integers, find the longest subarray where the absolute difference between any two elements is less than or equal to . Example There are two subarrays meeting the …

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Forming a Magic Square HackerRank Solution in C, C++, Java, Python

We define a magic square to be an  matrix of distinct positive integers from  to  where the sum of any row, column, or diagonal of length  is always equal to the same number: the magic constant. You …

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Cat and a Mouse HackerRank Solution in C, C++, Java, Python

Two cats and a mouse are at various positions on a line. You will be given their starting positions. Your task is to determine which cat will reach the mouse …

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Electronics Shop HackerRank Solution in C, C++, Java, Python

A person wants to determine the most expensive computer keyboard and USB drive that can be purchased with a give budget. Given price lists for keyboards and USB drives and …

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Counting Valleys HackerRank Solution in C, C++, Java, Python

An avid hiker keeps meticulous records of their hikes. During the last hike that took exactly steps, for every step it was noted if it was an uphill, , or …

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