Locate image wells
A mathematical model of wells pumping groundwater near a boundary can be constructed using the method of images, which is also u...
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Two Jugs: Minimum Steps ( Medium )
Following the first problem, now you need to find the shortest path. Given two jugs with capacities A and B, find the minimum nu...
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There are 10 types of people in the world
Those who know binary, and those who don't.
The number 2015 is a palindrome in binary (11111011111 to be exact) Given a year...