refactor 811

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_811.java

@@ -7,60 +7,59 @@
 
 /**
  * 811. Subdomain Visit Count
-
- A website domain like "discuss.leetcode.com" consists of various subdomains.
- At the top level, we have "com", at the next level, we have "leetcode.com", and at the lowest level, "discuss.leetcode.com".
- When we visit a domain like "discuss.leetcode.com", we will also visit the parent domains "leetcode.com" and "com" implicitly.
- Now, call a "count-paired domain" to be a count (representing the number of visits this domain received), followed by a space,
- followed by the address.
- An example of a count-paired domain might be "9001 discuss.leetcode.com".
- We are given a list cpdomains of count-paired domains. We would like a list of count-paired domains, (in the same format as the input, and in any order),
- that explicitly counts the number of visits to each subdomain.
-
- Example 1:
- Input:
- ["9001 discuss.leetcode.com"]
- Output:
- ["9001 discuss.leetcode.com", "9001 leetcode.com", "9001 com"]
- Explanation:
- We only have one website domain: "discuss.leetcode.com". As discussed above, the subdomain "leetcode.com" and "com" will also be visited. So they will all be visited 9001 times.
-
- Example 2:
- Input:
- ["900 google.mail.com", "50 yahoo.com", "1 intel.mail.com", "5 wiki.org"]
- Output:
- ["901 mail.com","50 yahoo.com","900 google.mail.com","5 wiki.org","5 org","1 intel.mail.com","951 com"]
- Explanation:
- We will visit "google.mail.com" 900 times, "yahoo.com" 50 times, "intel.mail.com" once and "wiki.org" 5 times. For the subdomains, we will visit "mail.com" 900 + 1 = 901 times, "com" 900 + 50 + 1 = 951 times, and "org" 5 times.
-
- Notes:
-
- The length of cpdomains will not exceed 100.
- The length of each domain name will not exceed 100.
- Each address will have either 1 or 2 "." characters.
- The input count in any count-paired domain will not exceed 10000.
+ *
+ * A website domain like "discuss.leetcode.com" consists of various subdomains.
+ * At the top level, we have "com", at the next level, we have "leetcode.com", and at the lowest level, "discuss.leetcode.com".
+ * When we visit a domain like "discuss.leetcode.com", we will also visit the parent domains "leetcode.com" and "com" implicitly.
+ * Now, call a "count-paired domain" to be a count (representing the number of visits this domain received), followed by a space,
+ * followed by the address.
+ * An example of a count-paired domain might be "9001 discuss.leetcode.com".
+ * We are given a list cpdomains of count-paired domains. We would like a list of count-paired domains, (in the same format as the input, and in any order),
+ * that explicitly counts the number of visits to each subdomain.
+ *
+ * Example 1:
+ * Input:
+ * ["9001 discuss.leetcode.com"]
+ * Output:
+ * ["9001 discuss.leetcode.com", "9001 leetcode.com", "9001 com"]
+ * Explanation:
+ * We only have one website domain: "discuss.leetcode.com". As discussed above, the subdomain "leetcode.com" and "com" will also be visited. So they will all be visited 9001 times.
+ *
+ * Example 2:
+ * Input:
+ * ["900 google.mail.com", "50 yahoo.com", "1 intel.mail.com", "5 wiki.org"]
+ * Output:
+ * ["901 mail.com","50 yahoo.com","900 google.mail.com","5 wiki.org","5 org","1 intel.mail.com","951 com"]
+ * Explanation:
+ * We will visit "google.mail.com" 900 times, "yahoo.com" 50 times, "intel.mail.com" once and "wiki.org" 5 times. For the subdomains, we will visit "mail.com" 900 + 1 = 901 times, "com" 900 + 50 + 1 = 951 times, and "org" 5 times.
+ *
+ * Notes:
+ * The length of cpdomains will not exceed 100.
+ * The length of each domain name will not exceed 100.
+ * Each address will have either 1 or 2 "." characters.
+ * The input count in any count-paired domain will not exceed 10000.
  */
 public class _811 {
-  public static class Solution1 {
-    public List<String> subdomainVisits(String[] cpdomains) {
-      Map<String, Integer> map = new HashMap<>();
-      for (String each : cpdomains) {
-        String[] pair = each.split(" ");
-        String[] subDomains = pair[1].split("\\.");
-        StringBuilder sb = new StringBuilder();
-        for (int i = subDomains.length - 1; i >= 0; i--) {
-          if (i < subDomains.length - 1) {
-            sb.insert(0, ".");
-          }
-          sb.insert(0, subDomains[i]);
-          map.put(sb.toString(), map.getOrDefault(sb.toString(), 0) + Integer.parseInt(pair[0]));
+    public static class Solution1 {
+        public List<String> subdomainVisits(String[] cpdomains) {
+            Map<String, Integer> map = new HashMap<>();
+            for (String each : cpdomains) {
+                String[] pair = each.split(" ");
+                String[] subDomains = pair[1].split("\\.");
+                StringBuilder sb = new StringBuilder();
+                for (int i = subDomains.length - 1; i >= 0; i--) {
+                    if (i < subDomains.length - 1) {
+                        sb.insert(0, ".");
+                    }
+                    sb.insert(0, subDomains[i]);
+                    map.put(sb.toString(), map.getOrDefault(sb.toString(), 0) + Integer.parseInt(pair[0]));
+                }
+            }
+            List<String> result = new ArrayList<>();
+            for (String key : map.keySet()) {
+                result.add(map.get(key) + " " + key);
+            }
+            return result;
         }
-      }
-      List<String> result = new ArrayList<>();
-      for (String key : map.keySet()) {
-        result.add(map.get(key) + " " + key);
-      }
-      return result;
     }
-  }
 }