build

docs/chapter_heap/build_heap.md

@@ -305,6 +305,12 @@ comments: true
     }
     ```
 
+=== "Ruby"
+
+    ```ruby title="my_heap.rb"
+    [class]{MaxHeap}-[func]{__init__}
+    ```
+
 === "Zig"
 
     ```zig title="my_heap.zig"

docs/chapter_heap/heap.md

@@ -378,6 +378,43 @@ comments: true
 === "Kotlin"
 
     ```kotlin title="heap.kt"
+    /* 初始化堆 */
+    // 初始化小顶堆
+    var minHeap = PriorityQueue<Int>()
+    // 初始化大顶堆（使用 lambda 表达式修改 Comparator 即可）
+    val maxHeap = PriorityQueue { a: Int, b: Int -> b - a }
+    
+    /* 元素入堆 */
+    maxHeap.offer(1)
+    maxHeap.offer(3)
+    maxHeap.offer(2)
+    maxHeap.offer(5)
+    maxHeap.offer(4)
+    
+    /* 获取堆顶元素 */
+    var peek = maxHeap.peek() // 5
+    
+    /* 堆顶元素出堆 */
+    // 出堆元素会形成一个从大到小的序列
+    peek = maxHeap.poll() // 5
+    peek = maxHeap.poll() // 4
+    peek = maxHeap.poll() // 3
+    peek = maxHeap.poll() // 2
+    peek = maxHeap.poll() // 1
+    
+    /* 获取堆大小 */
+    val size = maxHeap.size
+    
+    /* 判断堆是否为空 */
+    val isEmpty = maxHeap.isEmpty()
+    
+    /* 输入列表并建堆 */
+    minHeap = PriorityQueue(mutableListOf(1, 3, 2, 5, 4))
+    ```
+
+=== "Ruby"
+
+    ```ruby title="heap.rb"
 
     ```
 
@@ -636,6 +673,16 @@ comments: true
     }
     ```
 
+=== "Ruby"
+
+    ```ruby title="my_heap.rb"
+    [class]{MaxHeap}-[func]{left}
+
+    [class]{MaxHeap}-[func]{right}
+
+    [class]{MaxHeap}-[func]{parent}
+    ```
+
 === "Zig"
 
     ```zig title="my_heap.zig"
@@ -767,6 +814,12 @@ comments: true
     }
     ```
 
+=== "Ruby"
+
+    ```ruby title="my_heap.rb"
+    [class]{MaxHeap}-[func]{peek}
+    ```
+
 === "Zig"
 
     ```zig title="my_heap.zig"
@@ -1155,6 +1208,14 @@ comments: true
     }
     ```
 
+=== "Ruby"
+
+    ```ruby title="my_heap.rb"
+    [class]{MaxHeap}-[func]{push}
+
+    [class]{MaxHeap}-[func]{sift_up}
+    ```
+
 === "Zig"
 
     ```zig title="my_heap.zig"
@@ -1703,6 +1764,14 @@ comments: true
     }
     ```
 
+=== "Ruby"
+
+    ```ruby title="my_heap.rb"
+    [class]{MaxHeap}-[func]{pop}
+
+    [class]{MaxHeap}-[func]{sift_down}
+    ```
+
 === "Zig"
 
     ```zig title="my_heap.zig"

docs/chapter_heap/top_k.md

@@ -434,6 +434,12 @@ comments: true
     }
     ```
 
+=== "Ruby"
+
+    ```ruby title="top_k.rb"
+    [class]{}-[func]{top_k_heap}
+    ```
+
 === "Zig"
 
     ```zig title="top_k.zig"