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Chapter II basic knowledge required for interview 1. Array Sword finger Offer 03 Duplicate number in array Find duplicate numbers in the array. All numbers in an array num of length n are in the range of 0 ~ n-1. Some numbers in the array are repeated, but I don't know how many numbers are repeated, or how many times each number is repeated. ...

preface Thesis Name: (ICIP2017) single simple online and realtime tracking with a deep association metric Thesis address: https://arxiv.org/abs/1703.07402 Open source address: https://github.com/nwojke/deep_sort catalogue 1, Common multi-target tracking workflow 2, Prerequisite knowledge: Sort multi-target tracking 3, DeepSort multi-ta ...

First give two algorithm questions for the interview. One number has an odd number and the other number has an even number. It is required to find this number, and the time complexity is O(n) and the space complexity is O(1)The two kinds of numbers appear odd times and the other numbers appear even times. It is required to find this number, an ...

Update 2021.8.2-2021.8.18 wrote this blog to commemorate the 2021 summer JC training 2021.9.3-2021.9.8 modification 2022.2.9 the part of bipartite graph is improved 2021.8.2(dp) 1. Milking 01 simple question of backpack 2.Gangsters First sort the structure array from small to large according to the time point, and then ...

AVL tree introduction and detailed explanation of each operation Introduction to AVL treeImplementation of AVL tree operation set rotate RR insertion (left single rotation)LL insertion (right single rotation)RL insertion (right left double rotation)LR insertion (left and right double rotation) insertdeleteergodic Complete code Code ...

1, Overview of arrays 1. Understanding of arrays: An array is a collection of several data of the same type arranged in a certain order, named with a name, and managed uniformly by numbering. 2. Array related concepts: Array name element subscript, subscript and index length of array: number of elements 3. Characteristics of array: Arrays ...

Introduction: The vector class is called the vector class. It implements a dynamic array, which is used for an array of objects with variable number of elements. The elements in the order container are sorted in strict linear order. The corresponding element can be accessed through the position of the element in the sequence. When expanding ...

Concept introduction and understanding Recurrence: deduce the following results from the previous calculation results. Mathematical language description can deduce f(n) from f(0),f(1)... f(n-1), so recurrence formula is the key. Recursion: push forward from the back, start with the result, and push backward. The mathematical language descr ...

2021 12th Lanqiao cup provincial tournament group B C/C++ preface: Recall that I participated in the blue bridge cup for the first time last year. At that time, I was a freshman and full of enthusiasm. Although I only learned c language and had only a little contact with c + +, I signed up for the competition at the suggestion of my senio ...

brief introduction KNN(K Nearest Neighbors) It can be used for classification problems and regression problemsClassification problem and regression problem are divided into whether to take weight or not give an example introduce The existing categories are red triangles and blue squaresWhat type should the newly entered green dot belong t ...