添加 0056.合并区间.md Scala版本

problems/0056.合并区间.md

@@ -286,7 +286,37 @@ function merge(intervals: number[][]): number[][] {
 };
 ```
 
+### Scala
 
+```scala
+object Solution {
+  import scala.collection.mutable
+  def merge(intervals: Array[Array[Int]]): Array[Array[Int]] = {
+    var res = mutable.ArrayBuffer[Array[Int]]()
+
+    // 排序
+    var interval = intervals.sortWith((a, b) => {
+      a(0) < b(0)
+    })
+
+    var left = interval(0)(0)
+    var right = interval(0)(1)
+
+    for (i <- 1 until interval.length) {
+      if (interval(i)(0) <= right) {
+        left = math.min(left, interval(i)(0))
+        right = math.max(right, interval(i)(1))
+      } else {
+        res.append(Array[Int](left, right))
+        left = interval(i)(0)
+        right = interval(i)(1)
+      }
+    }
+    res.append(Array[Int](left, right))
+    res.toArray // 返回res的Array形式
+  }
+}
+```
 
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