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题目如下： Given an array of integers nums and a positive integer k, find whether it's possible to divide this array into sets of k consecutive numbersRetu 阅读全文
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题目如下： Given an array nums of integers, return how many of them contain an even number of digits. Example 1: Example 2: Constraints: 1 <= nums.length < 阅读全文
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题目如下： We want to use quad trees to store an N x N boolean grid. Each cell in the grid can only be true or false. The root node represents the whole gr 阅读全文
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题目如下： Given a rectangle of size n x m, find the minimum number of integer-sided squares that tile the rectangle. Example 1: Example 2: Example 3: Cons 阅读全文
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题目如下： Given a m x n matrix mat and an integer threshold. Return the maximum side-length of a square with a sum less than or equal to threshold or retu 阅读全文
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题目如下： An integer has sequential digits if and only if each digit in the number is one more than the previous digit. Return a sorted list of all the in 阅读全文
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题目如下： Given head which is a reference node to a singly-linked list. The value of each node in the linked list is either 0 or 1. The linked list holds 阅读全文