Container with most water.

Author: recherst

Medium/11.Container With Most Water.playground/Contents.swift

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+/**
+ You are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of the ith line are (i, 0) and (i, height[i]).
+
+ Find two lines that together with the x-axis form a container, such that the container contains the most water.
+
+ Return the maximum amount of water a container can store.
+
+ Notice that you may not slant the container.
+
+  
+
+ Example 1:
+ Input: height = [1,8,6,2,5,4,8,3,7]
+ Output: 49
+ Explanation: The above vertical lines are represented by array [1,8,6,2,5,4,8,3,7]. In this case, the max area of water (blue section) the container can contain is 49.
+ 
+ Example 2:
+ Input: height = [1,1]
+ Output: 1
+  
+
+ Constraints:
+ - n == height.length
+ - 2 <= n <= 10^5
+ - 0 <= height[i] <= 10^4
+ */
+class Solution {
+    func maxArea(_ height: [Int]) -> Int {
+        var left = 0
+        var right = height.count - 1
+        var maxArea = (right - left) * min(height[left], height[right])
+        while left < right {
+            left = 0
+            let currentArea = (right - left) * min(height[left], height[right])
+            if currentArea > maxArea {
+                maxArea = currentArea
+            }
+            while left < right {
+                if height[left] >= height[right] {
+                    let currentArea = (right - left) * min(height[left], height[right])
+                    if currentArea > maxArea {
+                        maxArea = currentArea
+                    }
+                    break
+                }
+                let currentArea = (right - left) * min(height[left], height[right])
+                if currentArea > maxArea {
+                    maxArea = currentArea
+                }
+                left += 1
+            }
+            right -= 1
+        }
+        return maxArea
+    }
+}
+
+let s = Solution()
+let r = s.maxArea([10,9])
+print(r)

Medium/11.Container With Most Water.playground/contents.xcplayground

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+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>

Medium/11.Container With Most Water.playground/playground.xcworkspace/contents.xcworkspacedata

@@ -111,4 +111,5 @@
 4. [ZigZag Conversion](https://github.com/recherst/leetcode-algtorithm/blob/main/Medium/6.ZigZag%20Conversion.playground/Contents.swift)
 5. [Reverse Integer](https://github.com/recherst/leetcode-algtorithm/blob/main/Medium/7.Reverse%20Integer.playground/Contents.swift)
 6. [String to Integer (atoi)](https://github.com/recherst/leetcode-algtorithm/blob/main/Medium/8.String%20to%20Integer%20(atoi).playground/Contents.swift)
+7. [Container With Most Water](https://github.com/recherst/leetcode-algtorithm/blob/main/Medium/11.Container%20With%20Most%20Water.playground/Contents.swift)