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#Description A knight jumps around an infinite chessboard. The chessboard is an unexplored territory. In the spirit of explorers, whoever stands on a square for the first time claims the ownership of this square. The ...

Time limit : 2sec / Memory limit : 256MB You are given a string $S$ consisting of and 1. Find the maximum integer $K$ not greater than $|S|$ such that we can turn all the characters of $S$ into by repeat...

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others) Alice is interesting in computation geometry problem recently. She found a interesting problem and solved it easily. Now she will g...

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