Latest DSA Problems & Practice | Improve Coding with ScholarHat

DSA Problems

Practice real interview questions and track your progress

254 problems

#	Title	Topics	Acceptance	Difficulty
1	Check Whether Three Numbers Form a Geometric Progression	Data Structures Basics Comparisons	82.80%	Basic
2	Check Whether Three Angles Form a Valid Triangle	Data Structures Basics Comparisons	80.89%	Basic
3	Classify a Triangle Using Sides and Angles	Data Structures Basics Comparisons	73.99%	Basic
4	Create a Menu-Driven Scientific Calculator	Data Structures Basics	100.00%	Basic
5	Calculate Movie Ticket Price Based on Age, Day and Seat Type	Data Structures Basics	96.93%	Basic
6	Find the Second Smallest of Four Numbers	Sorting Algorithms Comparisons	89.17%	Basic
7	Find the Second Largest of Four Numbers	Sorting Algorithms Comparisons	79.82%	Basic
8	Find the Middle Value Among Three Distinct Numbers	Comparisons	82.79%	Basic
9	Sort Three Numbers Using Conditional Statements	Data Structures Basics Sorting Algorithms Sorting Algorithm Comparisons sorts & algorithms	93.23%	Basic
10	Check Whether Three Numbers Form an Arithmetic Progression	Data Structures Basics	73.03%	Basic
11	Check Whether Three Angles Form a Valid Triangle	Comparisons	91.52%
12	Sort Three Numbers Using Conditional Statements	Comparisons	90.15%
13	Find the Middle Value Among Three Distinct Numbers	Comparisons	84.12%
14	Count of Subsets with Given Sum	Dynamic Programming	45.45%
15	Find the Second Smallest of Four Numbers	Array Sorting Algorithms	89.85%
16	Find the Second Largest of Four Numbers	Array Sorting Algorithms	89.48%
17	Game with String	Heap	53.96%	Medium
18	Kth largest element	Heap	64.92%	Medium
19	Min Number of Jumps	Dynamic Programming	50.48%	Medium
20	House Robber	Dynamic Programming	51.45%	Medium
21	Min Cost Climbing Stairs	Dynamic Programming	65.21%	Easy
22	Odd Even Graph Check	Graph	63.45%	Medium
23	Redundant Connection	Graph	68.71%	Medium
24	Detect Cycle in Undirected Graph (DFS)	Graph	67.77%	Medium
25	Path Existence Between Two Nodes	Graph	80.12%	Easy
26	Detect Cycle in Directed Graph (DFS)	Graph	67.67%	Medium
27	Level of Each Node	Graph	74.21%	Medium
28	BFS Traversal	Graph	83.12%	Easy
29	DFS Traversal	Graph DFS Traversal	85.64%	Easy
30	Flood Fill	Recursion	69.00%	Medium
31	Number of Islands	Recursion	66.00%	Medium
32	Remove Duplicates From A String	String Stack	61.68%	Easy
33	Remove Consecutive Duplicates	Recursion	60.00%	Easy
34	Find Element in a Sorted Array	Binary Search	80.00%	Easy
35	Binary Tree Cameras	Tree Traversal Binary Tree	55.21%	Hard
36	Boundary Traversal	Tree Traversal Binary Tree	45.21%	Hard
37	Compare Leaf Traversal	Tree Traversal Binary Tree	77.95%	Medium
38	Binary Tree Post Order Traversal	Tree Recursion Traversal Binary Tree	79.59%	Easy
39	Inorder Successor in BST	Tree Traversal Binary Tree	60.12%	Medium
40	Kth Largest Element in BST	Tree Traversal Binary Tree	70.53%	Medium
41	Construct Tree from Inorder + Postorder	Tree Traversal Binary Tree	65.12%	Medium
42	Top View of Binary Tree	Tree Traversal Binary Tree	60.21%	Medium
43	Convert Sorted Array to BST	Tree Traversal Binary Tree	74.56%	Medium
44	Find Maximum in BST	Tree Traversal Binary Tree	85.54%	Easy
45	Find Minimum in BST	Tree Traversal Binary Tree	85.18%	Easy
46	Find Distance Between Two Nodes	Tree Traversal Binary Tree	62.45%	Medium
47	All Paths With Given Sum	Tree Traversal Binary Tree	74.23%	Medium
48	Maximum Root to Leaf Path Sum	Tree Traversal Binary Tree	72.15%	Medium
49	Count Non-Leaf Nodes In Binary Tree	Tree Traversal Binary Tree	60.48%	Easy
50	Minimum Depth of Binary Tree	Tree Traversal Binary Tree	60.25%	Medium