728.Self Dividing Numbers.

Author: recherst

Easy/728.Self Dividing Numbers.playground/Contents.swift

@@ -0,0 +1,46 @@
+/**
+ A self-dividing number is a number that is divisible by every digit it contains.
+
+ For example, 128 is a self-dividing number because 128 % 1 == 0, 128 % 2 == 0, and 128 % 8 == 0.
+ A self-dividing number is not allowed to contain the digit zero.
+
+ Given two integers left and right, return a list of all the self-dividing numbers in the range [left, right].
+
+  
+
+ Example 1:
+ Input: left = 1, right = 22
+ Output: [1,2,3,4,5,6,7,8,9,11,12,15,22]
+ 
+ Example 2:
+ Input: left = 47, right = 85
+ Output: [48,55,66,77]
+  
+
+ Constraints:
+ - 1 <= left <= right <= 10^4
+ */
+class Solution {
+    func selfDividingNumbers(_ left: Int, _ right: Int) -> [Int] {
+        var result = [Int]()
+        for i in left...right {
+            let element = String(i)
+            for (j, c) in element.enumerated() {
+                if c.wholeNumberValue! == 0 {
+                    break
+                }
+                if i % c.wholeNumberValue! != 0 {
+                    break
+                }
+                if j == element.count - 1 {
+                    result.append(i)
+                }
+            }
+        }
+        return result
+    }
+}
+
+let s = Solution()
+let r = s.selfDividingNumbers(1, 22)
+print(r)

Easy/728.Self Dividing Numbers.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>

Easy/728.Self Dividing Numbers.playground/playground.xcworkspace/contents.xcworkspacedata

@@ -130,6 +130,7 @@
 126. [Binary Search](https://github.com/recherst/leetcode-algtorithm/blob/main/Easy/704.Binary%20Search.playground/Contents.swift)
 127. [To Lower Case](https://github.com/recherst/leetcode-algtorithm/blob/main/Easy/709.To%20Lower%20Case.playground/Contents.swift)
 128. [1-bit and 2-bit Characters](https://github.com/recherst/leetcode-algtorithm/blob/main/Easy/717.1-bit%20and%202-bit%20Characters.playground/Contents.swift)
+129. [Self Dividing Numbers](https://github.com/recherst/leetcode-algtorithm/blob/main/Easy/728.Self%20Dividing%20Numbers.playground/Contents.swift)
 
 #### Medium