refactor 751

fishercoder1534 · fishercoder1534 · commit d525ce095cd3 · 2020-07-22T15:55:22.000-07:00
diff --git a/src/main/java/com/fishercoder/solutions/_751.java b/src/main/java/com/fishercoder/solutions/_751.java
@@ -2,53 +2,6 @@
 
 import java.util.List;
 
-/**
- * 751. IP to CIDR
- *
- * Given a start IP address ip and a number of ips we need to cover n,
- * return a representation of the range as a list (of smallest possible length) of CIDR blocks.
- * A CIDR block is a string consisting of an IP, followed by a slash, and then the prefix length.
- * For example: "123.45.67.89/20". That prefix length "20" represents the number of common prefix bits in the specified range.
- *
- * Example 1:
- * Input: ip = "255.0.0.7", n = 10
- * Output: ["255.0.0.7/32","255.0.0.8/29","255.0.0.16/32"]
- * Explanation:
- * The initial ip address, when converted to binary, looks like this (spaces added for clarity):
- * 255.0.0.7 -> 11111111 00000000 00000000 00000111
- *
- * The address "255.0.0.7/32" specifies all addresses with a common prefix of 32 bits to the given address,
- * ie. just this one address.
- *
- * The address "255.0.0.8/29" specifies all addresses with a common prefix of 29 bits to the given address:
- * 255.0.0.8 -> 11111111 00000000 00000000 00001000
- * Addresses with common prefix of 29 bits are:
- * 11111111 00000000 00000000 00001000
- * 11111111 00000000 00000000 00001001
- * 11111111 00000000 00000000 00001010
- * 11111111 00000000 00000000 00001011
- * 11111111 00000000 00000000 00001100
- * 11111111 00000000 00000000 00001101
- * 11111111 00000000 00000000 00001110
- * 11111111 00000000 00000000 00001111
- *
- * The address "255.0.0.16/32" specifies all addresses with a common prefix of 32 bits to the given address,
- * ie. just 11111111 00000000 00000000 00010000.
- *
- * In total, the answer specifies the range of 10 ips starting with the address 255.0.0.7 .
- *
- * There were other representations, such as:
- * ["255.0.0.7/32","255.0.0.8/30", "255.0.0.12/30", "255.0.0.16/32"],
- * but our answer was the shortest possible.
- *
- * Also note that a representation beginning with say, "255.0.0.7/30" would be incorrect,
- * because it includes addresses like 255.0.0.4 = 11111111 00000000 00000000 00000100
- * that are outside the specified range.
- * Note:
- * ip will be a valid IPv4 address.
- * Every implied address ip + x (for x < n) will be a valid IPv4 address.
- * n will be an integer in the range [1, 1000].
- * */
 public class _751 {
     public static class Solution1 {
         public List<String> ipToCIDR(String ip, int n) {
