Merge pull request #1459 from wzqwtt/greedy01

添加（0455.分发饼干、0376.摆动序列） Scala版本

problems/0376.摆动序列.md

@@ -375,7 +375,31 @@ function wiggleMaxLength(nums: number[]): number {
 };
 ```
 
+### Scala
 
+```scala
+object Solution {
+  def wiggleMaxLength(nums: Array[Int]): Int = {
+    if (nums.length <= 1) return nums.length
+    var result = 1
+    var curDiff = 0 // 当前一对的差值
+    var preDiff = 0 // 前一对的差值
+
+    for (i <- 1 until nums.length) {
+      curDiff = nums(i) - nums(i - 1) // 计算当前这一对的差值
+      // 当 curDiff > 0 的情况，preDiff <= 0
+      // 当 curDiff < 0 的情况，preDiff >= 0
+      // 这两种情况算是两个峰值
+      if ((curDiff > 0 && preDiff <= 0) || (curDiff < 0 && preDiff >= 0)) {
+        result += 1 // 结果集加 1
+        preDiff = curDiff // 当前差值赋值给上一轮
+      }
+    }
+
+    result
+  }
+}
+```
 
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 <div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>

problems/0455.分发饼干.md

@@ -296,5 +296,26 @@ int findContentChildren(int* g, int gSize, int* s, int sSize){
 }
 ```
 
+### Scala
+
+```scala
+object Solution {
+  def findContentChildren(g: Array[Int], s: Array[Int]): Int = {
+    var result = 0
+    var children = g.sorted
+    var cookie = s.sorted
+    // 遍历饼干
+    var j = 0
+    for (i <- cookie.indices) {
+      if (j < children.size && cookie(i) >= children(j)) {
+        j += 1
+        result += 1
+      }
+    }
+    result
+  }
+}
+```
+
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 <div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>