Submit 122_BestTimetoBuyandSellStockII

Binlogo-Archive · Jul 10, 2020 · 18e5f2a · 18e5f2a
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diff --git a/...ayground.playground/Pages/122_BestTimetoBuyandSellStockII.xcplaygroundpage/Contents.swift b/...ayground.playground/Pages/122_BestTimetoBuyandSellStockII.xcplaygroundpage/Contents.swift
@@ -0,0 +1,22 @@
+//: [Previous](@previous)
+
+import Foundation
+
+class Solution {
+    func maxProfit(_ prices: [Int]) -> Int {
+        guard !prices.isEmpty else { return 0 }
+        var maxProfit = 0
+        for current in 1..<prices.count {
+            if prices[current] > prices[current - 1] {
+                maxProfit += prices[current] - prices[current - 1]
+            }
+        }
+        return maxProfit
+    }
+}
+
+// Tests
+let s = Solution()
+s.maxProfit([7,1,5,3,6,4]) == 7
+
+//: [Next](@next)
diff --git a/LeetCodePlayground.playground/contents.xcplayground b/LeetCodePlayground.playground/contents.xcplayground
@@ -106,5 +106,6 @@
         <page name='程序员面试金典 - 面试题 16.11. 跳水板'/>
         <page name='程序员面试金典 - 面试题 17.13. 恢复空格'/>
         <page name='121_BestTimetoBuyandSellStock'/>
+        <page name='122_BestTimetoBuyandSellStockII'/>
     </pages>
 </playground>