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题目如下： You have a keyboard layout as shown above in the XY plane, where each English uppercase letter is located at some coordinate, for example, the l 阅读全文
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题目如下： There are n computers numbered from 0 to n-1 connected by ethernet cables connections forming a network where connections[i] = [a, b] represents 阅读全文
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题目如下： Given 3 positives numbers a, b and c. Return the minimum flips required in some bits of a and b to make ( a OR b == c ). (bitwise OR operation). 阅读全文
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题目如下： Given an integer n. No-Zero integer is a positive integer which doesn't contain any 0 in its decimal representation. Return a list of two intege 阅读全文