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HackerRank: Pacman A* In the previous game, you performed UCS on the PacMan grid. In this game we use AStar algorithm to reduce the nodes...
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Related: LeetCode 394 - Decode String http://bookshadow.com/weblog/2016/12/11/leetcode-encode-string-with-shortest-length/ Given a non...
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HackerRank: PacMan - BFS In the previous game, you performed DFS on the PacMan grid. It was seen that DFS might not always give the short...
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https://paper.dropbox.com/doc/Interview-Notes-Dropbox-wl7npLjRBjrAKA5AOBsaM Behavioural https://www.paysa.com/blog/2017/04/05/what-to...
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Buttercola: Buddy System Given a complete binary tree with nodes of values of either 1 or 0, the following rules always hold: 1. A node...
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https://leetcode.com/problems/smallest-string-starting-from-leaf/ Given the root of a binary tree, each node has a value from 0 to 2...
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https://leetcode.com/problems/lemonade-change/description/ At a lemonade stand, each lemonade costs $5 . Customers are standing in a ...
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https://leetcode.com/problems/open-the-lock/description/ You have a lock in front of you with 4 circular wheels. Each wheel has 10 slot...
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http://www.jiuzhang.com/solutions/lfu-cache/ https://github.com/chirino/hawtdb/blob/master/hawtdb/src/main/java/org/fusesource/hawtdb/util...