Improve the consistency between code and comments in Kotlin (#1268)

* style(kotlin): Make code and comments consistent.

* style(kotlin): convert comment location.

* style(c): Add missing comment.

* style(kotlin): Remove redundant semicolon, parenthesis and brace

* style(kotlin): Put constants inside the function.

* style(kotlin): fix unnecessary indentation.

* style(swift): Add missing comment.

* style(kotlin): Add missing comment.

* style(kotlin): Remove redundant comment.

* style(kotlin): Add missing comment.

* Update linked_list.kt

* style(csharp,js,ts): Add missing comment.

* style(kotlin): Remove empty lines.

* Update list.cs

* Update list.js

* Update list.ts

* roll back to commit 1

* style(cs,js,ts): Add missing comment in docfile.

* style(kotlin): Use normal element swapping instead of scope functions.

codes/kotlin/chapter_dynamic_programming/knapsack.kt

@@ -59,11 +59,7 @@ fun knapsackDFSMem(
 }
 
 /* 0-1 背包：动态规划 */
-fun knapsackDP(
-    wgt: IntArray,
-    _val: IntArray,
-    cap: Int
-): Int {
+fun knapsackDP(wgt: IntArray, _val: IntArray, cap: Int): Int {
     val n = wgt.size
     // 初始化 dp 表
     val dp = Array(n + 1) { IntArray(cap + 1) }
@@ -83,11 +79,7 @@ fun knapsackDP(
 }
 
 /* 0-1 背包：空间优化后的动态规划 */
-fun knapsackDPComp(
-    wgt: IntArray,
-    _val: IntArray,
-    cap: Int
-): Int {
+fun knapsackDPComp(wgt: IntArray, _val: IntArray, cap: Int): Int {
     val n = wgt.size
     // 初始化 dp 表
     val dp = IntArray(cap + 1)
@@ -97,8 +89,7 @@ fun knapsackDPComp(
         for (c in cap downTo 1) {
             if (wgt[i - 1] <= c) {
                 // 不选和选物品 i 这两种方案的较大值
-                dp[c] =
-                    max(dp[c], dp[c - wgt[i - 1]] + _val[i - 1])
+                dp[c] = max(dp[c], dp[c - wgt[i - 1]] + _val[i - 1])
             }
         }
     }