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完善所以c#相关的文档和代码

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zhuzhiqing
2022-12-23 15:42:02 +08:00
parent 1646c284f6
commit a427cb1b4d
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116
codes/csharp/chapter_stack_and_queue/array_queue.cs Normal file
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using System;
using hello_algo.include;
using NUnit.Framework;
namespace hello_algo.chapter_stack_and_queue
{
/* 基于环形数组实现的队列 */
class ArrayQueue {
private int[] nums; // 用于存储队列元素的数组
private int front = 0; // 头指针，指向队首
private int rear = 0; // 尾指针，指向队尾 + 1
public ArrayQueue(int capacity) {
// 初始化数组
nums = new int[capacity];
}
/* 获取队列的容量 */
public int capacity() {
return nums.Length;
}
/* 获取队列的长度 */
public int size() {
int capacity = this.capacity();
// 由于将数组看作为环形，可能 rear < front ，因此需要取余数
return (capacity + rear - front) % capacity;
}
/* 判断队列是否为空 */
public bool isEmpty() {
return rear - front == 0;
}
/* 入队 */
public void offer(int num) {
if (size() == capacity()) {
Console.WriteLine("队列已满");
return;
}
// 尾结点后添加 num
nums[rear] = num;
// 尾指针向后移动一位，越过尾部后返回到数组头部
rear = (rear + 1) % capacity();
}
/* 出队 */
public int poll() {
int num = peek();
// 队头指针向后移动一位，若越过尾部则返回到数组头部
front = (front + 1) % capacity();
return num;
}
/* 访问队首元素 */
public int peek() {
if (isEmpty())
throw new Exception();
return nums[front];
}
/* 返回数组 */
public int[] toArray() {
int size = this.size();
int capacity = this.capacity();
// 仅转换有效长度范围内的列表元素
int[] res = new int[size];
for (int i = 0, j = front; i < size; i++, j++) {
res[i] = nums[j % capacity];
}
return res;
}
}
public class array_queue {
[Test]
public void Test()
{
/* 初始化队列 */
int capacity = 10;
ArrayQueue queue = new ArrayQueue(capacity);
/* 元素入队 */
queue.offer(1);
queue.offer(3);
queue.offer(2);
queue.offer(5);
queue.offer(4);
Console.WriteLine("队列 queue = " + string.Join(",",queue.toArray()));
/* 访问队首元素 */
int peek = queue.peek();
Console.WriteLine("队首元素 peek = " + peek);
/* 元素出队 */
int poll = queue.poll();
Console.WriteLine("出队元素 poll = " + poll + "，出队后 queue = " + string.Join(",", queue.toArray()));
/* 获取队列的长度 */
int size = queue.size();
Console.WriteLine("队列长度 size = " + size);
/* 判断队列是否为空 */
bool isEmpty = queue.isEmpty();
Console.WriteLine("队列是否为空 = " + isEmpty);
/* 测试环形数组 */
for (int i = 0; i < 10; i++) {
queue.offer(i);
queue.poll();
Console.WriteLine("第 " + i + " 轮入队 + 出队后 queue = " + string.Join(",", queue.toArray()));
}
}
}
}

94
codes/csharp/chapter_stack_and_queue/array_stack.cs Normal file
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using System;
using hello_algo.include;
using NUnit.Framework;
namespace hello_algo.chapter_stack_and_queue
{
/* 基于数组实现的栈 */
class ArrayStack
{
private List<int> stack;
public ArrayStack()
{
// 初始化列表（动态数组）
stack = new();
}
/* 获取栈的长度 */
public int size()
{
return stack.Count();
}
/* 判断栈是否为空 */
public bool isEmpty()
{
return size() == 0;
}
/* 入栈 */
public void push(int num)
{
stack.Add(num);
}
/* 出栈 */
public int pop()
{
if (isEmpty())
throw new Exception();
var val = peek();
stack.RemoveAt(size() - 1);
return val;
}
/* 访问栈顶元素 */
public int peek()
{
if (isEmpty())
throw new Exception();
return stack[size() - 1];
}
/* 将 List 转化为 Array 并返回 */
public int[] toArray()
{
return stack.ToArray();
}
}
public class array_stack
{
[Test]
public void Test()
{
/* 初始化栈 */
ArrayStack stack = new ArrayStack();
/* 元素入栈 */
stack.push(1);
stack.push(3);
stack.push(2);
stack.push(5);
stack.push(4);
Console.WriteLine("栈 stack = " + String.Join(",", stack.toArray()));
/* 访问栈顶元素 */
int peek = stack.peek();
Console.WriteLine("栈顶元素 peek = " + peek);
/* 元素出栈 */
int pop = stack.pop();
Console.WriteLine("出栈元素 pop = " + pop + "，出栈后 stack = " + String.Join(",", stack.toArray()));
/* 获取栈的长度 */
int size = stack.size();
Console.WriteLine("栈的长度 size = " + size);
/* 判断是否为空 */
bool isEmpty = stack.isEmpty();
Console.WriteLine("栈是否为空 = " + isEmpty);
}
}
}

119
codes/csharp/chapter_stack_and_queue/linkedlist_queue.cs Normal file
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using System;
using hello_algo.include;
using NUnit.Framework;
namespace hello_algo.chapter_stack_and_queue
{
/* 基于链表实现的队列 */
class LinkedListQueue
{
private ListNode? front, rear; // 头结点 front ，尾结点 rear
private int queSize = 0;
public LinkedListQueue()
{
front = null;
rear = null;
}
/* 获取队列的长度 */
public int size()
{
return queSize;
}
/* 判断队列是否为空 */
public bool isEmpty()
{
return size() == 0;
}
/* 入队 */
public void offer(int num)
{
// 尾结点后添加 num
ListNode node = new ListNode(num);
// 如果队列为空，则令头、尾结点都指向该结点
if (front == null)
{
front = node;
rear = node;
// 如果队列不为空，则将该结点添加到尾结点后
}
else if (rear != null)
{
rear.next = node;
rear = node;
}
queSize++;
}
/* 出队 */
public int poll()
{
int num = peek();
// 删除头结点
front = front?.next;
queSize--;
return num;
}
/* 访问队首元素 */
public int peek()
{
if (size() == 0 || front == null)
throw new Exception();
return front.val;
}
/* 将链表转化为 Array 并返回 */
public int[] toArray()
{
if (front == null)
return Array.Empty<int>();
ListNode node = front;
int[] res = new int[size()];
for (int i = 0; i < res.Length; i++)
{
res[i] = node.val;
node = node.next;
}
return res;
}
}
public class linkedlist_queue
{
[Test]
public void Test()
{
/* 初始化队列 */
LinkedListQueue queue = new LinkedListQueue();
/* 元素入队 */
queue.offer(1);
queue.offer(3);
queue.offer(2);
queue.offer(5);
queue.offer(4);
Console.WriteLine("队列 queue = " + String.Join(",", queue.toArray()));
/* 访问队首元素 */
int peek = queue.peek();
Console.WriteLine("队首元素 peek = " + peek);
/* 元素出队 */
int poll = queue.poll();
Console.WriteLine("出队元素 poll = " + poll + "，出队后 queue = " + String.Join(",", queue.toArray()));
/* 获取队列的长度 */
int size = queue.size();
Console.WriteLine("队列长度 size = " + size);
/* 判断队列是否为空 */
bool isEmpty = queue.isEmpty();
Console.WriteLine("队列是否为空 = " + isEmpty);
}
}
}

108
codes/csharp/chapter_stack_and_queue/linkedlist_stack.cs Normal file
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using System;
using hello_algo.include;
using NUnit.Framework;
namespace hello_algo.chapter_stack_and_queue
{
class LinkedListStack
{
private ListNode? stackPeek; // 将头结点作为栈顶
private int stkSize = 0; // 栈的长度
public LinkedListStack()
{
stackPeek = null;
}
/* 获取栈的长度 */
public int size()
{
return stkSize;
}
/* 判断栈是否为空 */
public bool isEmpty()
{
return size() == 0;
}
/* 入栈 */
public void push(int num)
{
ListNode node = new ListNode(num);
node.next = stackPeek;
stackPeek = node;
stkSize++;
}
/* 出栈 */
public int pop()
{
if (stackPeek == null)
throw new Exception();
int num = peek();
stackPeek = stackPeek.next;
stkSize--;
return num;
}
/* 访问栈顶元素 */
public int peek()
{
if (size() == 0 || stackPeek==null)
throw new Exception();
return stackPeek.val;
}
/* 将 List 转化为 Array 并返回 */
public int[] toArray()
{
if (stackPeek == null)
return Array.Empty<int>();
ListNode node = stackPeek;
int[] res = new int[size()];
for (int i = res.Length - 1; i >= 0; i--)
{
res[i] = node.val;
node = node.next;
}
return res;
}
}
public class linkedlist_stack
{
[Test]
public void Test()
{
/* 初始化栈 */
LinkedListStack stack = new LinkedListStack();
/* 元素入栈 */
stack.push(1);
stack.push(3);
stack.push(2);
stack.push(5);
stack.push(4);
Console.WriteLine("栈 stack = " + String.Join(",",stack.toArray()));
/* 访问栈顶元素 */
int peek = stack.peek();
Console.WriteLine("栈顶元素 peek = " + peek);
/* 元素出栈 */
int pop = stack.pop();
Console.WriteLine("出栈元素 pop = " + pop + "，出栈后 stack = " + String.Join(",",stack.toArray()));
/* 获取栈的长度 */
int size = stack.size();
Console.WriteLine("栈的长度 size = " + size);
/* 判断是否为空 */
bool isEmpty = stack.isEmpty();
Console.WriteLine("栈是否为空 = " + isEmpty);
}
}
}

41
codes/csharp/chapter_stack_and_queue/queue.cs Normal file
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using System;
using hello_algo.include;
using NUnit.Framework;
namespace hello_algo.chapter_stack_and_queue
{
public class queue
{
[Test]
public void Test()
{
/* 初始化队列 */
Queue<int> queue = new();
/* 元素入队 */
queue.Enqueue(1);
queue.Enqueue(3);
queue.Enqueue(2);
queue.Enqueue(5);
queue.Enqueue(4);
Console.WriteLine("队列 queue = " + String.Join(",", queue.ToArray()));
/* 访问队首元素 */
int peek = queue.Peek();
Console.WriteLine("队首元素 peek = " + peek);
/* 元素出队 */
int poll = queue.Dequeue();
Console.WriteLine("出队元素 poll = " + poll + "，出队后 queue = " + String.Join(",", queue.ToArray()));
/* 获取队列的长度 */
int size = queue.Count();
Console.WriteLine("队列长度 size = " + size);
/* 判断队列是否为空 */
bool isEmpty = queue.Count() == 0;
Console.WriteLine("队列是否为空 = " + isEmpty);
}
}
}

40
codes/csharp/chapter_stack_and_queue/stack.cs Normal file
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using NUnit.Framework;
using System.Collections.Immutable;
namespace hello_algo.chapter_stack_and_queue
{
public class stack
{
[Test]
public void Test()
{
/* 初始化栈 */
Stack<int> stack = new();
/* 元素入栈 */
stack.Push(1);
stack.Push(3);
stack.Push(2);
stack.Push(5);
stack.Push(4);
Console.WriteLine("栈 stack = " + String.Join(",", stack.ToImmutableArray()));
/* 访问栈顶元素 */
int peek = stack.Peek();
Console.WriteLine("栈顶元素 peek = " + peek);
/* 元素出栈 */
int pop = stack.Pop();
Console.WriteLine("出栈元素 pop = " + pop + "，出栈后 stack = " + String.Join(",", stack.ToImmutableArray()));
/* 获取栈的长度 */
int size = stack.Count();
Console.WriteLine("栈的长度 size = " + size);
/* 判断是否为空 */
bool isEmpty = stack.Count() == 0;
Console.WriteLine("栈是否为空 = " + isEmpty);
}
}
}