Gopythor

Reverse the elements in an array. Java public static void reverse(int[] v, int N) { int i = 0; int j = N - 1; while (i < j) { swap(v, i, j); // this is a self-defined function i++; j--; } } GO func reverse(v []int, N int) { var i int = 0 var j = N - 1 for i < j { swap(v, i, j) // this is a self-defined function i++ j-- } }

Go/Leet Code 2022. 4. 9. 17:46

Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". Example 1: Input: strs = ["flower","flow","flight"] Output: "fl" Example 2: Input: strs = ["dog","racecar","car"] Output: "" Explanation: There is no common prefix among the input strings. Constraints: 1

Go/Leet Code 2022. 4. 8. 00:49

Implement strStr(). Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Clarification: What should we return when needle is an empty string? This is a great question to ask during an interview. For the purpose of this problem, we will return 0 when needle is an empty string. This is consistent to C's strs..

Go/Leet Code 2022. 4. 4. 23:09

Given two binary strings a and b, return their sum as a binary string. Example 1: Input: a = "11", b = "1" Output: "100" Example 2: Input: a = "1010", b = "1011" Output: "10101" Constraints: 1 = 0 { switch { case carry == 1: if aa[alen] == "0" && bb[blen] == "0" { ans = append([]string{"1"}, ans...) carry = 0 alen-- blen-- } else if aa[alen] == "1" && bb[blen] == "0" || aa[alen] == "0" && bb[ble..

Go/Leet Code 2022. 4. 3. 20:15

Beware of String Concatenation in Java Code Java // "static void main" must be defined in a public class. public class Main { public static void main(String[] args) { String s = ""; int n = 10000; for (int i = 0; i < n; i++) { s += "hello"; } } } Go func main() { var s string = "" var n int = 10000 for i := 0; i < n; i++ { s += "hello" } } https://go.dev/play/p/08cAfn65srV Solution Code(Convert ..

Go/Leet Code 2022. 4. 2. 17:56

Compare Function Java // "static void main" must be defined in a public class. public class Main { public static void main(String[] args) { // initialize String s1 = "Hello World"; System.out.println("s1 is \"" + s1 + "\""); String s2 = s1; System.out.println("s2 is another reference to s1."); String s3 = new String(s1); System.out.println("s3 is a copy of s1."); // compare using '==' System.out..

Go/Leet Code 2022. 3. 30. 22:19

Given an integer numRows, return the first numRows of Pascal&#39;s triangle. In Pascal&#39;s triangle, each number is the sum of the two numbers directly above it as shown: Example 1: Input: numRows = 5 Output: [[1],[1,1],[1,2,1],[1,3,3,1],[1,4,6,4,1]]Example 2: Input: numRows = 1 Output: [[1]]Constraints: 1

Go/Leet Code 2022. 3. 29. 23:01

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