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Review Swift codes (#1150)

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* feat(swift): review for chapter_computational_complexity

* feat(swift): review for chapter_data_structure

* feat(swift): review for chapter_array_and_linkedlist

* feat(swift): review for chapter_stack_and_queue

* feat(swift): review for chapter_hashing

* feat(swift): review for chapter_tree

* feat(swift): add codes for heap article

* feat(swift): review for chapter_heap

* feat(swift): review for chapter_graph

* feat(swift): review for chapter_searching

* feat(swift): review for chapter_sorting

* feat(swift): review for chapter_divide_and_conquer

* feat(swift): review for chapter_backtracking

* feat(swift): review for chapter_dynamic_programming

* feat(swift): review for chapter_greedy

* feat(swift): review for utils

* feat(swift): update ci tool

* feat(swift): trailing closure

* feat(swift): array init

* feat(swift): map index
This commit is contained in:
nuomi1
2024-03-20 21:15:39 +08:00
committed by GitHub
parent 300a781fab
commit 7359a7cb4b
55 changed files with 293 additions and 224 deletions
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codes/swift/chapter_searching/binary_search.swift
+4 -4
View File
@@ -7,8 +7,8 @@
/* 二分查找（双闭区间） */
func binarySearch(nums: [Int], target: Int) -> Int {
// 初始化双闭区间 [0, n-1] ，即 i, j 分别指向数组首元素、尾元素
var i = 0
var j = nums.count - 1
var i = nums.startIndex
var j = nums.endIndex - 1
// 循环，当搜索区间为空时跳出（当 i > j 时为空）
while i <= j {
let m = i + (j - i) / 2 // 计算中点索引 m
@@ -27,8 +27,8 @@ func binarySearch(nums: [Int], target: Int) -> Int {
/* 二分查找（左闭右开区间） */
func binarySearchLCRO(nums: [Int], target: Int) -> Int {
// 初始化左闭右开区间 [0, n) ，即 i, j 分别指向数组首元素、尾元素+1
var i = 0
var j = nums.count
var i = nums.startIndex
var j = nums.endIndex
// 循环，当搜索区间为空时跳出（当 i = j 时为空）
while i < j {
let m = i + (j - i) / 2 // 计算中点索引 m
codes/swift/chapter_searching/binary_search_edge.swift
+1 -1
View File
@@ -11,7 +11,7 @@ func binarySearchLeftEdge(nums: [Int], target: Int) -> Int {
// 等价于查找 target 的插入点
let i = binarySearchInsertion(nums: nums, target: target)
// 未找到 target ，返回 -1
if i == nums.count || nums[i] != target {
if i == nums.endIndex || nums[i] != target {
return -1
}
// 找到 target ，返回索引 i
codes/swift/chapter_searching/binary_search_insertion.swift
+6 -2
View File
@@ -6,7 +6,9 @@
/* 二分查找插入点（无重复元素） */
func binarySearchInsertionSimple(nums: [Int], target: Int) -> Int {
var i = 0, j = nums.count - 1 // 初始化双闭区间 [0, n-1]
// 初始化双闭区间 [0, n-1]
var i = nums.startIndex
var j = nums.endIndex - 1
while i <= j {
let m = i + (j - i) / 2 // 计算中点索引 m
if nums[m] < target {
@@ -23,7 +25,9 @@ func binarySearchInsertionSimple(nums: [Int], target: Int) -> Int {
/* 二分查找插入点（存在重复元素） */
public func binarySearchInsertion(nums: [Int], target: Int) -> Int {
var i = 0, j = nums.count - 1 // 初始化双闭区间 [0, n-1]
// 初始化双闭区间 [0, n-1]
var i = nums.startIndex
var j = nums.endIndex - 1
while i <= j {
let m = i + (j - i) / 2 // 计算中点索引 m
if nums[m] < target {