[LEET-3370] add 3370

Author: fishercoder1534

paginated_contents/algorithms/4th_thousand/README.md

@@ -1,5 +1,6 @@
 | #    | Title                                                                                                                                                             | Solutions                                                                                                                         | Video                                                                         | Difficulty | Tag                                                                  
 |------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|------------|----------------------------------------------------------------------
+| 3370 | [Smallest Number With All Set Bits](https://leetcode.com/problems/smallest-number-with-all-set-bits/)                                                        | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3370.java) |                                                                               | Easy       |
 | 3364 | [Minimum Positive Sum Subarray](https://leetcode.com/problems/minimum-positive-sum-subarray/)                                                        | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3364.java) |                                                                               | Easy       |
 | 3360 | [Stone Removal Game](https://leetcode.com/problems/stone-removal-game/)                                                        | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3360.java) |                                                                               | Easy       |
 | 3354 | [Make Array Elements Equal to Zero](https://leetcode.com/problems/make-array-elements-equal-to-zero/)                                                       | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3354.java) |                                                                               | Easy       |

src/main/java/com/fishercoder/solutions/fourththousand/_3370.java

@@ -0,0 +1,23 @@
+package com.fishercoder.solutions.fourththousand;
+
+public class _3370 {
+    public static class Solution1 {
+        public int smallestNumber(int n) {
+            for (int num = n; ; num++) {
+                if (allSetBits(num)) {
+                    return num;
+                }
+            }
+        }
+
+        private boolean allSetBits(int num) {
+            String binaryStr = Integer.toBinaryString(num);
+            for (char c : binaryStr.toCharArray()) {
+                if (c != '1') {
+                    return false;
+                }
+            }
+            return true;
+        }
+    }
+}