Fizz buzz.

Author: recherst

Easy/409.Longest Palindrome.playground/Contents.swift

@@ -33,17 +33,18 @@ class Solution {
             }
         }
         var hasSingle = false
-        map = map.filter { $1 > 1 }
         var count = 0
         for e in map {
-            if e.value % 2 == 0 {
-                count += e.value
-            } else {
-                if !hasSingle {
-                    hasSingle = true
+            if e.value > 1 {
+                if e.value % 2 == 0 {
                     count += e.value
                 } else {
-                    count += (e.value - 1)
+                    if !hasSingle {
+                        hasSingle = true
+                        count += e.value
+                    } else {
+                        count += (e.value - 1)
+                    }
                 }
             }
         }

Easy/412.Fizz Buzz.playground/Contents.swift

@@ -0,0 +1,47 @@
+/**
+ Given an integer n, return a string array answer **(1-indexed)** where:
+
+ - answer[i] == "FizzBuzz" if i is divisible by 3 and 5.
+ - answer[i] == "Fizz" if i is divisible by 3.
+ - answer[i] == "Buzz" if i is divisible by 5.
+ - answer[i] == i (as a string) if none of the above conditions are true.
+  
+
+ Example 1:
+ Input: n = 3
+ Output: ["1","2","Fizz"]
+ 
+ Example 2:
+ Input: n = 5
+ Output: ["1","2","Fizz","4","Buzz"]
+ 
+ Example 3:
+ Input: n = 15
+ Output: ["1","2","Fizz","4","Buzz","Fizz","7","8","Fizz","Buzz","11","Fizz","13","14","FizzBuzz"]
+  
+
+ Constraints:
+ - 1 <= n <= 104
+ */
+class Solution {
+    func fizzBuzz(_ n: Int) -> [String] {
+        var resultArr = [String]()
+        for i in 1...n {
+            if i % 3 == 0 && i % 5 != 0 {
+                resultArr.append("Fizz")
+            } else if i % 3 != 0 && i % 5 == 0 {
+                resultArr.append("Buzz")
+            } else if i % 3 == 0 && i % 5 == 0 {
+                resultArr.append("FizzBuzz")
+            } else {
+                resultArr.append("\(i)")
+            }
+        }
+        return resultArr
+
+    }
+}
+
+let s = Solution()
+let r = s.fizzBuzz(3)
+print(r)

Easy/412.Fizz Buzz.playground/contents.xcplayground

@@ -0,0 +1,4 @@
+<?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>