随笔分类 - leetcode刷题
摘要：1.牛客网上一道题： 已知一个栈的入栈序列是mnxyz,则不可能出现的出栈顺序是？ A. mnxyz B. xnyzm C. nymxz D. nmyzx 答案是C。 可能我脑子比较笨吧，看来看去，感觉没看懂这类题型的意思。 因为我们都知道栈（stack）其实就是跟弹夹一样，子弹是往下压进去的，你如
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摘要：1.原题： https://leetcode.com/problems/decrypt-string-from-alphabet-to-integer-mapping/submissions/ Given a string s formed by digits ('0' - '9') and '#'
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摘要：1.原题： https://leetcode.com/problems/range-sum-of-bst/ Given the root node of a binary search tree, return the sum of values of all nodes with value be
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摘要：1.原题： https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/ Given an integer n, return any array containing n unique integers such that
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摘要：1.原题： https://leetcode.com/problems/minimum-time-visiting-all-points/ On a plane there are n points with integer coordinates points[i] = [xi, yi]. You
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摘要：1.原题： https://leetcode.com/problems/split-a-string-in-balanced-strings/ Split a String in Balanced Strings： Balanced strings are those who have equal
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摘要：1.原题： https://leetcode.com/problems/find-numbers-with-even-number-of-digits/ Given an array nums of integers, return how many of them contain an even
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摘要：1.原题： https://leetcode.com/problems/subtract-the-product-and-sum-of-digits-of-an-integer/ Given an integer number n, return the difference between the
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摘要：1.原题： https://leetcode.com/problems/jewels-and-stones/ You're given strings J representing the types of stones that are jewels, and S representing the
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摘要：1.原题： https://leetcode.com/problems/defanging-an-ip-address/ 这道题本身很简单， Given a valid (IPv4) IP address, return a defanged version of that IP address.
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摘要：Convert Binary Number in a Linked List to Integer这道题在leetcode上面算作是“easy”，然而小生我还是不会做，于是根据大佬的回答来整理一下思路以便日后复习。 https://leetcode.com/problems/convert-bina
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