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You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/ve 阅读全文
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In MATLAB, there is a very useful function called 'reshape', which can reshape a matrix into a new one with different size but keep its original data. 阅读全文
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Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of the numbe 阅读全文
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Given an integer array with even length, where different numbers in this array represent different kinds of candies. Each number means one candy of th 阅读全文
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Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You might 阅读全文
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You're now a baseball game point recorder. Given a list of strings, each string can be one of the 4 following types: Each round's operation is permane 阅读全文
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内容全部来自编程之法：面试和算法心得一书，实现是自己写的使用的是java 题目描述 输入一个字符串，打印出该字符串中字符的所有排列。 例如输入字符串abc，则输出由字符a、b、c 所能排列出来的所有字符串 abc、acb、bac、bca、cab 和 cba。 分析与解法 解法一、递归实现 从集合中依 阅读全文