feat: add swift implementation to lcof2 problem: No.094 (doocs#3480)

Author: klever34

lcof2/剑指 Offer II 094. 最少回文分割/README.md

@@ -249,6 +249,40 @@ public class Solution {
 }
 ```
 
+#### Swift
+
+```swift
+class Solution {
+    func minCut(_ s: String) -> Int {
+        let n = s.count
+        let sArray = Array(s)
+        
+        var g = Array(repeating: Array(repeating: true, count: n), count: n)
+        
+        for i in stride(from: n - 1, through: 0, by: -1) {
+            for j in i + 1..<n {
+                g[i][j] = sArray[i] == sArray[j] && g[i + 1][j - 1]
+            }
+        }
+        
+        var f = Array(repeating: 0, count: n)
+        for i in 0..<n {
+            f[i] = i
+        }
+        
+        for i in 1..<n {
+            for j in 0...i {
+                if g[j][i] {
+                    f[i] = min(f[i], j > 0 ? 1 + f[j - 1] : 0)
+                }
+            }
+        }
+        
+        return f[n - 1]
+    }
+}
+```
+
 <!-- tabs:end -->
 
 <!-- solution:end -->

lcof2/剑指 Offer II 094. 最少回文分割/Solution.swift

@@ -0,0 +1,29 @@
+class Solution {
+    func minCut(_ s: String) -> Int {
+        let n = s.count
+        let sArray = Array(s)
+        
+        var g = Array(repeating: Array(repeating: true, count: n), count: n)
+        
+        for i in stride(from: n - 1, through: 0, by: -1) {
+            for j in i + 1..<n {
+                g[i][j] = sArray[i] == sArray[j] && g[i + 1][j - 1]
+            }
+        }
+        
+        var f = Array(repeating: 0, count: n)
+        for i in 0..<n {
+            f[i] = i
+        }
+        
+        for i in 1..<n {
+            for j in 0...i {
+                if g[j][i] {
+                    f[i] = min(f[i], j > 0 ? 1 + f[j - 1] : 0)
+                }
+            }
+        }
+        
+        return f[n - 1]
+    }
+}