|352|[Data Stream as Disjoint Intervals](https://leetcode.com/problems/data-stream-as-disjoint-intervals/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_352.java)| O(logn)|O(n) | Hard| TreeMap

|351|[Android Unlock Patterns](https://leetcode.com/problems/android-unlock-patterns/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_351.java)| O(?)|O(?) | Medium|

|350|[Intersection of Two Arrays II](https://leetcode.com/problems/intersection-of-two-arrays-ii/)|[Solution](../master/src/main/java/com/fishercoder/solutions/IntersectionOfTwoArraysII.java)| O(m+n)|O((m+n)) could be optimized | Easy| HashMap, Binary Search

|348|[Design Tic-Tac-Toe](https://leetcode.com/problems/design-tic-tac-toe/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_348.java)| O(1)|O(n) | Medium| Design

|347|[Top K Frequent Elements](https://leetcode.com/problems/top-k-frequent-elements/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_347.java)| O(n)|O(1) | Medium| HashTable, Heap

|346|[Moving Average from Data Stream](https://leetcode.com/problems/moving-average-from-data-stream/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_346.java)| O(1)|O(w)) | Easy| Queue

//then I clicked its Tags, and find it's marked with so many tags: Binary Search, HashTable, Two Pointers, Sort, now I'll try to do it one by one

//inspired by this post: https://discuss.leetcode.com/topic/45685/three-java-solutions

}

public static void main(String...strings){

int[] nums1 = new int[]{1,2};

int[] nums2 = new int[]{2,1};

test.intersection_binary_search(nums1 , nums2);