Programmer Think

@datetime: 2021/06/14 @author: shenhao Note: if a chapter is marked with skip, its sub chapters need to be skipped. FFmpeg hardware is accelerated and NVIDIA codec is used in the code All steps in this article come from NVIDIA official documents , and with reference to the practice summary and practice of major netizens. In addition ...

GitHub sync update (Classified): Data_Structure_And_Algorithm-Review (it's best to give a star!!!) The following is the main body of this article, and the following cases can be used for reference. Traversal of binary tree Traversing a binary tree is to access each node in the binary tree successively and only once according to a searc ...

Freshmen enter the data structure. Please give advice on mistakes and omissions and make progress with you. Arrays and pointers What is an array A contiguous space (clearly telling the compiler how many blocks of space there are) is used for the same type of data The name of the array is for the user to see. In the actual memory, the ad ...

E -- easy version of zhinai #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> using namespace std; const int N = 1e5 + 10, mod = 1e9 + 7; int a[N]; bool st[N]; bool cmp(char a,char b) { return a > b; } int main() { int n, m, k; cin >> n >> m >> k; ...

Prime number definition If a number is a prime number, it has only two common factors (divisor) of itself and 1, otherwise it is a composite number. Write a program to judge whether a number is a prime number If the data to be judged is N: The general idea is to divide N from 2 to see whether there is a number that can divide N in the interv ...

Next larger element 1 Title Link Maintain a monotonically decreasing stack, that is, when the traversal element is larger than the top element of the stack, save the result and pop up the top element of the stack In order to get the results in the order of subset array 1, we need to use hash table to establish mapping relationship when ...

preface Some time ago, OpenGL will be used in engineering for some rendering and modeling operations. In the future, this column will be updated to explain the application of typical opengl functions and structures in the way of the highest signal-to-noise ratio. Through this hand-in-hand way, I believe it is the fastest way for novice fri ...

T2 dynamic programming & & decision monotonicity optimization Pre cheese: Mo team General meaning: Given an interval with n numbers, it is exactly divided into k segments to minimize the logarithm of the same number in each segment of the interval. Data range: 1<=n<=100000,1<=k<=min(n,20),1<=ai<=n. Example: 10 2 1 2 1 ...

Recent projects need to use some effects of beauty, so I began to contact opencv computer vision library. I found a simple and free introductory video "opencv 4 # quick start video 30 lectures" in Tencent class. After watching the video, I initially had a clear concept and basic usage of OpenCV #. The next step is to start some prelim ...

1. Use of custom signal slot in QT The signal slot provided by Qt framework cannot meet the needs of our project in some specific scenarios. Therefore, we also design our own signal and slot and use connect() to connect the customized signal slot. If you want to use a custom signal slot, first write a new class and let it inherit some st ...