2023-08-08: Give you a tree of n nodes (connected undirected and acyclic graph) with node numbers from 0 to n - 1 and exactly n - 1 edges. Give you a tree of length n with subscripts from 0 The initial integer array vals represents each section

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2023-08-08: Give you a tree of n nodes (connected undirected and acyclic graph) with node numbers from 0 to n - 1 and exactly n - 1 edges. Give you a tree of length n with subscripts from 0 The initial integer array vals represents each section

2023-05-05: Given an undirected, connected tree with n nodes labeled 0...n-1 and n-1 edges. Given an integer n and an array edges , edge

2023-06-18: Given a one-dimensional array scores of length N, which represents the initial score of employees No. 0~N-1, scores[i] = a, means that employee No. i scored a at the beginning, given a Two-dimensional array operatio of length M

Likou brushing notes day7 (repeated numbers in the array + search for numbers in the sorted array + missing numbers from 0 to n-1)

0 Basic do n’t be afraid, from 0 to 1 easily teach you how to get started with Python

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A multiple of 3, to give you a positive integer, you judge that it is not a multiple of 3? T has a data input (T less than 50), representing data for each data group T, an integer n (n is greater than 1 less than 10 th 1000) Note that the data range

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Given an integer n, 1 ... n is seeking to nodes of a binary search tree, how many?

① Given a, ..., n, n sequence number 0, 1, 2 comprise, find the number 0 .. n does not appear in the sequence. ② all numbers in an array of length n's are in the range of 0 to n-1, find a duplicate array of any number

The path from the root node to all leaves in the tree (or directed acyclic graph)

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