Create TheRocket.md

Jerring · web-flow · commit 733f6d772965 · 2018-12-02T20:53:57.000+08:00
diff --git a/2018.12.2-leetcode557/TheRocket.md b/2018.12.2-leetcode557/TheRocket.md
@@ -0,0 +1,29 @@
+```java
+class Solution {
+    public String reverseWords(String s) {
+        char[] cs = s.toCharArray();
+        int i = 0;
+        while (i < cs.length) {
+            int begin = i;
+            while (i < cs.length && cs[i] != ' ') {
+                ++i;
+            }
+            reverse(cs, begin, i - 1);
+            ++i;
+        }
+        return new String(cs);
+    }
+
+    private void swap(char[] cs, int i, int j) {
+        char tmp = cs[i];
+        cs[i] = cs[j];
+        cs[j] = tmp;
+    }
+
+    private void reverse(char[] cs, int i, int j) {
+        while (i < j) {
+            swap(cs, i++, j--);
+        }
+    }
+}
+```
