Gopythor

In the previous lesson, we had a healthy dosage of practical Go programming. When we finished writing our chat client for the hydra spaceship. In this section we'll begin to explore reflection in the Go language. We are going to take a look at.. What is Refelction Refresher on interfaces First law of reflection Second law of reflection Third law of reflection http://blog.golang.org/laws-of-r..

Go/Mastering Go 2022. 3. 28. 03:48

My code func findDiagonalOrder(mat [][]int) []int { m, n := len(mat), len(mat[0]) result := make([]int, m*n) row, col, d := 0, 0, 1 for i := 0; i = m { row = m - 1 col += 2 d = -d } if col >= n { col = n - 1 row += 2 d = -d } if row < 0 { row = 0 d = -d } if col < 0 { col = 0 d = -d } } return result } This code is like walking pat..

Go/Leet Code 2022. 3. 27. 22:56

Code Java // "static void main" must be defined in a public class. public class Main { private static void printArray(int[][] a) { for (int i = 0; i < a.length; ++i) { System.out.println(a[i]); } for (int i = 0; i < a.length; ++i) { for (int j = 0; a[i] != null && j < a[i].length; ++j) { System.out.print(a[i][j] + " "); } System.out.println(); } } public static void main(String[] args) { System...

Go/Leet Code 2022. 3. 27. 04:37

통상적으로 변수 등이 String으로 사용된다면 큰 차이는 없음. 그러나 String이 아닌 형태가 서로 결합한다면 문제가 발생함. Code func main() { sstring := fmt.Sprint("Hello ", "World") nstring := "Hello World" fmt.Println(sstring) fmt.Println(nstring) }https://go.dev/play/p/WO415NpCkSl 문제는 String이 아닌 Integer 등이 혼합될 때이다. Code func main() { Sequence := 254 sstring := fmt.Sprintf("Sequence number %d is on hold", Sequence) fmt.Println(sstring) nstri..

Go/Study record 2022. 3. 26. 20:21

Given an array nums of n integers where nums[i] is in the range [1, n], return an array of all the integers in the range [1, n] that do not appear in nums. Example 1: Input: nums = [4,3,2,7,8,2,3,1] Output: [5,6]Example 2: Input: nums = [1,1] Output: [2]Constraints: n == nums.length 1 0 { missing = append(missing, i+1) } } return missing } func abs(x int) int { if x > 0 { return x } return -x }s..

Go/Leet Code 2022. 3. 19. 22:49

A school is trying to take an annual photo of all the students. The students are asked to stand in a single file line in non-decreasing order by height. Let this ordering be represented by the integer array expected where expected[i] is the expected height of the ith student in line. You are given an integer array heights representing the current order that the students are standing in. Each hei..

Go/Leet Code 2022. 3. 17. 22:04

QuickSort Divide and conquer algorithm After determining the pivot, the position of the pivot is confirmed and aligned Quicksort has many variations based on pivot. When comparing numbers, the pivot is the standard. The speed varies depending on the position of the pivot. There are left pivot, right pivot, middle pivot, and random pivot. O(n²) in the worst case Range, Criteria, Compare, Swap qui..

Go/Study record 2022. 3. 17. 18:44

The Pipeline Pattern https://blog.golang.org/pipelines A concurrent pattern A series of &#39;stages&#39; connected by channels Each stage is a group of goroutines running the same function So what is the pipeline design pattern and detailed article covering the pattern can be found in the link shown here. Pipeline is a design pattern that makes have used of go&#39;s concurrency. And devides code..

Go/Mastering Go 2022. 3. 11. 00:50