Witeso

Rank	Topic	Frequency	Percentage
1	Array	93	54.4%
2	String	45	26.3%
3	Hash Table	37	21.6%
4	Sorting	26	15.2%
5	Math	25	14.6%
6	Two Pointers	25	14.6%
7	Dynamic Programming	20	11.7%
8	Greedy	18	10.5%
9	Binary Search	17	9.9%
10	Heap (Priority Queue)	13	7.6%
11	Matrix	12	7.0%
12	Stack	11	6.4%
13	Depth-First Search	10	5.8%
14	Bit Manipulation	9	5.3%
15	Simulation	9	5.3%
16	Breadth-First Search	8	4.7%
17	Graph Theory	8	4.7%
18	Prefix Sum	8	4.7%
19	Backtracking	7	4.1%
20	Sliding Window	7	4.1%
21	Divide and Conquer	6	3.5%
22	Database	6	3.5%
23	Linked List	5	2.9%
24	Tree	5	2.9%
25	Design	5	2.9%
26	Topological Sort	5	2.9%
27	Binary Tree	5	2.9%
28	Counting	5	2.9%
29	Union-Find	4	2.3%
30	Queue	3	1.8%
31	String Matching	3	1.8%
32	Recursion	2	1.2%
33	Memoization	2	1.2%
34	Enumeration	2	1.2%
35	Ordered Set	2	1.2%
36	Trie	1	0.6%
37	Binary Search Tree	1	0.6%
38	Geometry	1	0.6%
39	Merge Sort	1	0.6%
40	Monotonic Stack	1	0.6%
41	Combinatorics	1	0.6%
42	Doubly-Linked List	1	0.6%
43	Bucket Sort	1	0.6%
44	Quickselect	1	0.6%
45	Monotonic Queue	1	0.6%
46	Game Theory	1	0.6%
47	Eulerian Circuit	1	0.6%
48	Shortest Path	1	0.6%

No.	Question Title	Link	Difficulty
1	Maximum Median Sum of Subsequences of Size 3	Visit	Medium
2	Minimum Operations to Make Columns Strictly Increasing	Visit	Easy
3	Report Spam Message	Visit	Medium
4	Minimum Length of String After Operations	Visit	Medium
5	Find The First Player to win K Games in a Row	Visit	Medium
6	Restricted	Restricted	Hard
7	Restricted	Restricted	Hard
8	Restricted	Restricted	Hard
9	Restricted	Restricted	Hard
10	Restricted	Restricted	Hard
11	Restricted	Restricted	Hard
12	Restricted	Restricted	Hard
13	Restricted	Restricted	Hard
14	Restricted	Restricted	Hard
15	Restricted	Restricted	Hard

Ibm Questions