There are many and detailed reference materials on the dispatch field algorithm on the Internet; and there are other methods to deal with the problem of converting infix expressions into prefix/suffix expressions processed by the dispatch field algorithm. Those who are interested can learn about it on their own. References: Algorithm – Shunting Yard Algorithm […]
Tag: prefix
Application of C++ prefix sum algorithm: Maximizing the minimum number of power supply stations in the city
Basic knowledge points involved in this article C++ algorithm: principles, source code and test cases of prefix sum, prefix product, prefix XOR including course videos dichotomy Title Give you an integer array stations with subscripts starting from 0 and length n, where stations[i] represents the number of power supply stations in the i-th city. Each […]
Prefix sum, difference, two-dimensional prefix sum, two-dimensional difference
Prefix sum Function: interval query Definition: prefix and array predix[n], original array a[n], the relationship between them is Interval query: Find the sum of elements between a[left] to a[right]: p[right] – p[left-1] template: #include<iostream> using namespace std; #define int long long const int N = 1e5 + 5; int a[N]; int prefix[N]; signed main() { […]
[WSN] Research on wireless sensor network X-Y coordinates to graphical view and bit string prefix embedding method (Matlab code implementation)
Welcome to this blog Advantages of bloggers:Blog content should be as thoughtful and logical as possible for the convenience of readers. Motto:He who travels a hundred miles is half as good as ninety. The directory of this article is as follows: Table of Contents 1 Overview 2 Operation results ? 3 References 4 Matlab code […]
Application of C++ prefix sum algorithm: statistical ascending quadruples
Application of C++ prefix sum algorithm: statistical ascending quadruples Basic knowledge points involved in this article C++ algorithm: principles, source code and test cases of prefix sum, prefix product, prefix XOR including course videos Title Given an integer array nums of length n with subscripts starting from 0, which contains all numbers from 1 to […]
PTA-Finding the value of a prefix expression (C language) (two methods) (detailed comments)
Arithmetic expressions come in the form of prefix notation, infix notation, and postfix notation. Prefix expression means that the binary operator is placed before the two operands. For example, the prefix expression of 2 + 3*(7-4) + 8/4 is: + + 2 * 3 – 7 4 / 8 4. Please design a program to […]
[Algorithm Selection] Prefix and Special Topic – Three
Article directory Foreword [Subarray whose sum is K](https://leetcode.cn/problems/subarray-sum-equals-k/description/) Title description Think analysis Code [Subarray sums divisible by K](https://leetcode.cn/problems/subarray-sums-divisible-by-k/) Title description Problem-solving instructions: Algorithm idea: Code [Contiguous array](https://leetcode.cn/problems/contiguous-array/submissions/) Title description Think analysis Code [Matrix area sum](https://leetcode.cn/problems/matrix-block-sum/) Title description Think analysis Code ?Summarize Foreword Meaning: The prefix sum is actually for an array of length n. We […]
Application of C++ prefix sum algorithm: Maximum number of robots within budget
Basic knowledge points involved in this article C++ algorithm: principles, source code and test cases of prefix sum, prefix product, prefix XOR including course videos Monotone bidirectional queue sliding window Title You have n robots and are given two integer arrays with indexes starting from 0, chargeTimes and runningCosts, both of length n. The charging […]
Application of C++ prefix sum algorithm: minimal overhead of making arrays equal
Basic knowledge points involved in this article C++ algorithm: principles, source code and test cases of prefix sum, prefix product, prefix XOR including course videos Title You are given two arrays nums and cost whose indexes start from 0, each containing n positive integers. You can perform the following operations any number of times: Increase […]
Application of C++ prefix sum algorithm: counting the number of subarrays with scores less than K
Basic knowledge points involved in this article C++ algorithm: principles, source code and test cases of prefix sum, prefix product, prefix XOR including course videos Title The fraction of an array is defined as the sum of the arrays times the length of the array. For example, the fraction of [1, 2, 3, 4, 5] […]