Problems

# Status Problem Level Completes Likes
36

Check if one string is a subsequence of another string.

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Most frequent word

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Given an array, count the number of pairs with a given sum.

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Two Sum Problem

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Sum of distinct elements among two given sets

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41

Insert a node in the given sorted linked list.

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43

Number of Intervals in which given value lies

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44

Find the sum of overlapping elements in two sets

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45

Given two coordinates, Print the line equation

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47

Depth-First Search (DFS) in 2D Matrix/2D-Array - Recursive Solution

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48

Given an array, Print sum of all subsets

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49

Hamming Distance between two given integers

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51

Depth-First Search (DFS) in 2D Matrix/2D-Array - Iterative Solution

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52

Breadth-First Search (BFS) in 2D Matrix/2D-Array

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53

Find all the Armstrong numbers in the given range

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54

Check if the given binary tree is Full or not.

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55

Check if given undirected graph is connected or not

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57

Maximum number edges to make Acyclic Undirected/Directed Graph

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58

Hamming Distance between two given strings

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59

Check if Number is divisible by its digits

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60

Check if the given number is Armstrong number or not

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61

Find all the numbers in the range which has prime set bits.

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62

Reverse the Directed Graph

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63

Find Third Smallest elements in a given array

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64

Find the maximum number present in a String

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65

Count number of subgraphs in a given graph

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66

Convert Roman Number to Integer

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68

Count the number of nodes in a given binary tree

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69

Longest contiguous character in a given String - O(N) Solution

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70

Collatz Conjecture - Steps to transform Number to 1

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Check if one string is a subsequence of another string.

Most frequent word

Given an array, count the number of pairs with a given sum.

Two Sum Problem

Sum of distinct elements among two given sets

Insert a node in the given sorted linked list.

Number of Intervals in which given value lies

Find the sum of overlapping elements in two sets

Given two coordinates, Print the line equation

Depth-First Search (DFS) in 2D Matrix/2D-Array - Recursive Solution

Given an array, Print sum of all subsets

Hamming Distance between two given integers

Depth-First Search (DFS) in 2D Matrix/2D-Array - Iterative Solution

Breadth-First Search (BFS) in 2D Matrix/2D-Array

Find all the Armstrong numbers in the given range

Check if the given binary tree is Full or not.

Check if given undirected graph is connected or not

Maximum number edges to make Acyclic Undirected/Directed Graph

Hamming Distance between two given strings

Check if Number is divisible by its digits

Check if the given number is Armstrong number or not

Find all the numbers in the range which has prime set bits.

Reverse the Directed Graph

Find Third Smallest elements in a given array

Find the maximum number present in a String

Count number of subgraphs in a given graph

Convert Roman Number to Integer

Count the number of nodes in a given binary tree

Longest contiguous character in a given String - O(N) Solution

Collatz Conjecture - Steps to transform Number to 1