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CodeForces Problem: A. Young Physicist with Java [Codeforces Beta Round #63 (Div. 2)]

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  A. Young Physicist Problem: A guy named Vasya attends the final grade of a high school. One day Vasya decided to watch a match of his favorite hockey team. And, as the boy loves hockey very much, even more than physics, he forgot to do the homework. Specifically, he forgot to complete his physics tasks. Next day the teacher got very angry at Vasya and decided to teach him a lesson. He gave the lazy student a seemingly easy task: You are given an idle body in space and the forces that affect it. The body can be considered as a material point with coordinates (0; 0; 0). Vasya had only to answer whether it is in equilibrium. "Piece of cake" — thought Vasya, we need only to check if the sum of all vectors is equal to 0. So, Vasya began to solve the problem. But later it turned out that there can be lots and lots of these forces, and Vasya can not cope without your help. Help him. Write a program that determines whether a body is idle or is moving by the given vectors of forces....
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CodeForces Problem: A. Beautiful Matrix with Java [Codeforces Round #161 (Div. 2)]

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  A. Beautiful Matrix Problem: You've got a 5 × 5 matrix, consisting of 24 zeroes and a single number one. Let's index the matrix rows by numbers from 1 to 5 from top to bottom, let's index the matrix columns by numbers from 1 to 5 from left to right. In one move, you are allowed to apply one of the two following transformations to the matrix:   1. Swap two neighboring matrix rows, that is, rows with indexes i and i + 1 for some integer i (1 ≤ i < 5).  2. Swap two neighboring matrix columns, that is, columns with indexes j and j + 1 for some integer j (1 ≤ j < 5).  You think that a matrix looks beautiful, if the single number one of the matrix is located in its middle (in the cell that is on the intersection of the third row and the third column). Count the minimum number of moves needed to make the matrix beautiful. Input  The input consists of five lines, each line contains five integers: the j-th integer in the i-th line of the input represents th...
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In the Web World: Who Owns Who?

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How are these large MNC's remaining on top? In this article, I'll share with you what methodologies the enormous companies are utilizing to remain on top and breaking point rivalry on the lookout. Contemplating the Future Companies, for example, Facebook, Google, Expedia, and Amazon are continually considering what's to come.  They investigate what they did previously and where the latest things are going.  Facebook's new Newsfeed calculations will make a more amiable and drawing-in experience for its clients. Facebook listened when users said they would not like to see immaterial and posts they don't esteem any longer. Accordingly, Facebook clients will see more things that they like and promotions will be less misleading content.  Another model is Amazon's new online media stage called Spark. They saw how its clients invest their energy in other online media stages and needed to impersonate it.  Flash is a combination of Pinterest and Instagram...
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