Featured Lists Top 20 Problems on Dynamic programming Top 10 Problems on Backtracking Top 20 Problems on Graph Top 25 Problems on Trees Top 10 Problems on Bits Manipulation Top 15 Problems in LinkedList All Problems # Status Problem video Level Completes Likes 292 Find the Area of a Triangle Given Three Sides – Heron’s Formula Beginner % 0 291 Find Factorial of a given Number Beginner % 0 290 Reverse a String using Recursion Beginner % 0 289 Find Sum of all Digits of a Number Beginner % 0 288 Print maximum occurring character in a String Beginner % 0 287 Kruskal's Algorithm – Minimum Spanning Tree (MST) - Complete Java Implementation Hard % 0 286 Introduction to Minimum Spanning Tree (MST) Medium % 0 285 Prim’s – Minimum Spanning Tree (MST) |using Adjacency List and Priority Queue without decrease key in O(ElogV) Hard % 0 284 Prim’s – Minimum Spanning Tree (MST) |using Adjacency List and Priority Queue with decrease key Hard % 0 283 Prim’s – Minimum Spanning Tree (MST) |using Adjacency List and Min Heap Hard % 1 282 Prim’s - Minimum Spanning Tree (MST) |using Adjacency Matrix Hard % 0 281 Prim’s Algorithm - Minimum Spanning Tree (MST) Hard % 0 280 Graph – Find Cycle in Undirected Graph using Disjoint Set (Union-Find) Hard % 0 279 Disjoint Set | Union-Find Algorithm - Union by rank and path compression Hard % 0 278 Disjoint Set Data Structure - Union Find Algorithm Hard % 0 276 Graph – Find Number of non reachable vertices from a given vertex Medium % 0 275 Graph – Detect Cycle in a Directed Graph using colors Hard % 0 274 Graph – Detect Cycle in an Undirected Graph using DFS Medium % 0 272 Graph – Software Installation Problem Medium % 0 265 Java Pair Class Beginner % 0 263 Minimum Copy Paste Operations Medium % 0 260 Deque Implementation – Java Beginner % 0 259 Print all sub sequences of a given String Medium % 0 255 Print all substrings of a given string Medium % 0 250 Nuts & Bolts Problem (Lock & Key problem) Beginner % 0 249 Divide and Conquer - Rearrange array elements in special order Medium % 0 248 Remove Duplicates from a string Medium % 0 247 Find median of two sorted arrays of same size Medium % 0 245 Dynamic programming – Printer Problem Hard % 0 241 Separate even and odd integers in a given array Beginner % 0 238 Separate 0’s and 1’s in a given array Beginner % 0 237 Find three elements in an array that sum to a zero. Beginner % 0 236 Find three elements in an array that sum to a given value Beginner % 1 235 Majority Element- Boyer–Moore majority vote algorithm Medium % 0 234 Majority Element – Part 1 Beginner % 0 Find the Area of a Triangle Given Three Sides – Heron’s Formula Find Factorial of a given Number Reverse a String using Recursion Find Sum of all Digits of a Number Print maximum occurring character in a String Kruskal's Algorithm – Minimum Spanning Tree (MST) - Complete Java Implementation Introduction to Minimum Spanning Tree (MST) Prim’s – Minimum Spanning Tree (MST) |using Adjacency List and Priority Queue without decrease key in O(ElogV) Prim’s – Minimum Spanning Tree (MST) |using Adjacency List and Priority Queue with decrease key Prim’s – Minimum Spanning Tree (MST) |using Adjacency List and Min Heap Prim’s - Minimum Spanning Tree (MST) |using Adjacency Matrix Prim’s Algorithm - Minimum Spanning Tree (MST) Graph – Find Cycle in Undirected Graph using Disjoint Set (Union-Find) Disjoint Set | Union-Find Algorithm - Union by rank and path compression Disjoint Set Data Structure - Union Find Algorithm Graph – Find Number of non reachable vertices from a given vertex Graph – Detect Cycle in a Directed Graph using colors Graph – Detect Cycle in an Undirected Graph using DFS Graph – Software Installation Problem Java Pair Class Minimum Copy Paste Operations Deque Implementation – Java Print all sub sequences of a given String Print all substrings of a given string Nuts & Bolts Problem (Lock & Key problem) Divide and Conquer - Rearrange array elements in special order Remove Duplicates from a string Find median of two sorted arrays of same size Dynamic programming – Printer Problem Separate even and odd integers in a given array Separate 0’s and 1’s in a given array Find three elements in an array that sum to a zero. Find three elements in an array that sum to a given value Majority Element- Boyer–Moore majority vote algorithm Majority Element – Part 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
