@@ -6,5 +6,4 @@
 + Generate Parentheses [LeetCode #22](https://leetcode.com/problems/generate-parentheses/)
 + Combination Sum [LeetCode #39](https://leetcode.com/problems/combination-sum/)
 + Wildcard Matching [LeetCode #44](https://leetcode.com/problems/wildcard-matching/)
-+ N-Queens [LeetCode #51](https://leetcode.com/problems/n-queens/)
-+ Restore IP Addresses [LeetCode #93](https://leetcode.com/problems/restore-ip-addresses/)
++ N-Queens [LeetCode #51](https://leetcode.com/problems/n-queens/)
@@ -0,0 +1,33 @@
+var restoreIpAddresses = function(ques) {
+    
+    if (ques.length > 12 || ques.length < 4) return [];
+    const result = [];
+    restoreIpAddresses_(ques, [], result);
+    return result;
+
+};
+
+const restoreIpAddresses_ = (ques, recAns, result) => {
+    
+    if (recAns.length === 4 && !ques.length) {
+        result.push(Array.from(recAns).join('.'));
+        return;
+    }
+
+    for (let i = 1; i < 4; i++) {
+        
+        if(ques.length < i) continue; 
+
+        const str = ques.slice(0,i);
+        if ((str.length > 1 && str[0] === '0') || Number(str) > 255) continue;
+        
+        recAns.push(str);
+        restoreIpAddresses_(ques.slice(i), recAns, result);
+        recAns.pop();
+
+    }
+}
+
+//test Input.
+var ans=restoreIpAddresses("25525511135");
+console.log(ans);