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Loop_1.0

BasicProgrammingWarmupMath&Geometry
easy
5 Mins
5k Attempts

Companies

Count Digits In an Integer

BasicProgrammingWarmupMath&Geometry
easy
5 Mins
30k Attempts

Companies

Min Cost Path

GreedyDynamicProgramming
easy
15 Mins
96.5k Attempts

Companies

Sum Of Two Arrays

Arrays&HashingWarmup
easy
10 Mins
34.5k Attempts

Companies

Permutation_III

Arrays&HashingMath&GeometryStrings
easy
10 Mins
110k Attempts

Companies

Tower of Hanoi

Arrays&HashingRecursion
easy
10 Mins
132.4k Attempts

Companies

Edit Distance

WarmupStrings
moderate
30 Mins
45.9k Attempts

Companies

4 Sum | Problem

Arrays&HashingMath&GeometryLinkedList
moderate
20 Mins
35k Attempts

Companies

Consecutive Numbers Sum

Math&GeometryDynamicProgrammingArrays&Hashing
difficult
20 Mins
78.9k Attempts

Companies

Reverse a linked list | Problem

Arrays&HashingLinkedListRecursion
easy
30 Mins
23k Attempts

Companies

Nth node from last of linked list | Problem

DynamicProgrammingLinkedList
easy
26 Mins
35k Attempts

Companies

Determine the middle node of a linked list

LinkedListDynamicProgramming
easy
30 Mins
39k Attempts

Companies

Eliminate the loop in a Linked List | Problem

LinkedListArrays&Hashing
easy
20 Mins
45k Attempts

Companies

Maximum Rectangle Area with all 1’s | DP Problem

DynamicProgramming
easy
30 Mins
15k Attempts

Companies

Delete without head pointer

WarmupLinkedList
easy
15 Mins
34.9k Attempts

Companies

Permutations_II

Arrays&HashingLinkedListMath&Geometry
moderate
20 Mins
56k Attempts

Companies

Detect Loop in linked list

WarmupLinkedListGameTheory
easy
15 Mins
78.6k Attempts

Companies

Validate an IP Address

WarmupStrings
moderate
30 Mins
54.6k Attempts

Companies

Min Number of Flips

WarmupStrings
easy
15 Mins
345k Attempts

Companies

Longest Palindrome in a String

WarmupStrings
moderate
15 Mins
123k Attempts

Companies

Reverse a string using Stack

WarmupStrings
easy
15 Mins
124k Attempts

Companies

Non Repeating Character

WarmupStrings
easy
15 Mins
87k Attempts

Companies

Isomorphic Strings

WarmupStrings
easy
15 Mins
153k Attempts

Companies

Reverse words in a given string

WarmupStrings
easy
15 Mins
78k Attempts

Companies

Parenthesis Checker

StringsWarmup
easy
15 Mins
67k Attempts

Companies

Forming a Magic Square

WarmupArrays&HashingConstructiveAlgorithms
moderate
30 Mins
89.8k Attempts

Companies

First Missing Positive

Arrays&HashingLinkedList
difficult
30 Mins
126.4k Attempts

Companies

Boats To Save People

Arrays&HashingMath&Geometry
moderate
15 Mins
46.2k Attempts

Companies

Range Addition I

Arrays&Hashing
moderate
20 Mins
21k Attempts

Companies

Sum of Two Integers

BitManipulation
moderate
5 Mins
35k Attempts

Companies

Majority Element General

Arrays&HashingImplementationWarmup
easy
10 Mins
69k Attempts

Companies

Migratory Birds

WarmupConstructiveAlgorithmsArrays&Hashing
easy
15 Mins
78k Attempts

Companies

Ways To Make A Fair Array

Arrays&Hashing
moderate
20 Mins
87.4k Attempts

Companies

Number Line Jumps

WarmupConstructiveAlgorithmsMath&Geometry
easy
15 Mins
24k Attempts

Companies

Union and Intersection of two Arrays

Arrays&Hashing
moderate
10 Mins
25k Attempts

Companies

Pascal's Triangle II

Arrays&Hashing1-DDynamicProgrammingMath&GeometryDynamicProgramming
easy
10 Mins
66.1k Attempts

Companies

Two Sum_Subarray

Arrays&Hashing
moderate
15 Mins
56.6k Attempts

Companies

Target Sum Subsets-DP

GreedyDynamicProgramming
moderate
30 Mins
89k Attempts

Companies

Squares Of A Sorted Array

Arrays&Hashing
easy
5 Mins
89k Attempts

Companies

Maximum Product Subarray

Arrays&HashingLinkedListDynamicProgramming
easy
15 Mins
241k Attempts

Companies

Coin Change Combination

GreedyDynamicProgramming
easy
20 Mins
83.8k Attempts

Companies

Climbing Stairs

GreedyDynamicProgramming
easy
10 Mins
67.8k Attempts

Companies

Prime Factorization Of A Number

BasicProgrammingWarmup
easy
5 Mins
50.1k Attempts

Companies

Subarray_01

Arrays&Hashing
moderate
10 Mins
38k Attempts

Companies

Majority Element

Arrays&Hashing
easy
5 Mins
100k Attempts

Companies

Product of Array Except Self

Arrays&HashingWarmupSearchImplementation
moderate
15 Mins
87.4k Attempts

Companies

Gcd And Lcm

BasicProgrammingWarmup
easy
5 Mins
60k Attempts

Companies

Rotate An Array

Arrays&Hashing
easy
10 Mins
32k Attempts

Companies

Gold Mine Problem

GreedyDynamicProgramming
easy
10 Mins
86.5k Attempts

Companies

Reverse an integer

BasicProgrammingWarmup
easy
5 Mins
20k Attempts

Companies

Nth Fibonacci Number

DynamicProgrammingGreedy
easy
10 Mins
76k Attempts

Companies

Conditional Statements_02

BasicProgrammingWarmup
easy
10 Mins
15k Attempts

Companies

Search In A Sorted 2d Array | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/PriorityqueueBacktracking
easy
28 Mins
6k Attempts

Companies

Conditional Statements_01

BasicProgrammingWarmup
easy
10 Mins
55k Attempts

Companies

Apple and Orange

WarmupConstructiveAlgorithmsMath&Geometry
easy
15 Mins
126k Attempts

Companies

Birthday Cake Candles

Arrays&HashingWarmupConstructiveAlgorithms
easy
10 Mins
97k Attempts

Companies

Arithmetic Equation

BasicProgrammingWarmup
easy
5 Mins
10k Attempts

Companies

Range Of The Array.

Arrays&Hashing
easy
5 Mins
55.5k Attempts

Companies

Diagonal Difference

Arrays&HashingConstructiveAlgorithmsWarmup
easy
15 Mins
89.5k Attempts

Companies

Power-linear

Math&GeometryRecursionDynamicProgramming
easy
10 Mins
78k Attempts

Companies

Factorial

Math&GeometryRecursion
easy
10 Mins
98k Attempts

Companies

Print All Permutations Of A String (Iteratively)

BasicProgrammingStringsBinarySearchMath&GeometryHeap/PriorityqueueBacktracking
easy
12 Mins
16k Attempts

Companies

Find the pivot element in a sorted and rotated array

GreedySortingArrays&HashingSearch
difficult
16 Mins
22k Attempts

Companies

Binary Knapsack Problem | Problem

AdvancedGraphsDynamicProgrammingArrays&Hashing
difficult
18 Mins
13k Attempts

Companies

Arranging Buildings Along a Street

DynamicProgrammingArrays&Hashing
easy
8 Mins
21k Attempts

Companies

Counting Valid Encoded Sequences

DynamicProgrammingArrays&Hashing
easy
9 Mins
25k Attempts

Companies

Merge Two Sorted Arrays | Problem

DynamicProgramming
difficult
17 Mins
10k Attempts

Companies

Print Decreasing

1-DDynamicProgrammingArrays&HashingRecursion
easy
5 Mins
125k Attempts

Companies

Decimal To Any Base

BasicProgrammingStringsBinarySearchMath&Geometry
moderate
10 Mins
6k Attempts

Companies

Span of Array | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/Priorityqueue
easy
11 Mins
21k Attempts

Companies

Difference between two Arrays | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/PriorityqueueBacktracking
moderate
17 Mins
10k Attempts

Companies

Subsets Of Array | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/Priorityqueue
moderate
11 Mins
11k Attempts

Companies

2D Array | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/PriorityqueueBacktracking
moderate
13 Mins
7k Attempts

Companies

Spiral Matrix | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/Priorityqueue
moderate
11 Mins
18k Attempts

Companies

Exit Point Of A Matrix | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/PriorityqueueBacktracking
moderate
11 Mins
14k Attempts

Companies

Print All Palindromic Substrings | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/Priorityqueue
easy
18 Mins
11k Attempts

Companies

String Compression | Problem

BacktrackingGraphs
moderate
13 Mins
17k Attempts

Companies

Remove Primes from Arraylist

BasicProgrammingStringsBinarySearchMath&GeometryHeap/PriorityqueueBacktrackingGraphs
moderate
16 Mins
19k Attempts

Companies

All Indices Of Array (using Recursive program)

BasicProgrammingStringsBinarySearchMath&GeometryHeap/PriorityqueueBacktracking
moderate
11 Mins
15k Attempts

Companies

Climb Stairs DP | Problem

Graphs
moderate
11 Mins
15k Attempts

Companies

Ascend Staircases Using Varying Leap Lengths

Graphs
moderate
18 Mins
15k Attempts

Companies

Goldmine | Problem

GraphsDynamicProgrammingStack&Queues
moderate
14 Mins
18k Attempts

Companies

Fractional Knapsack Problem

AdvancedGraphsDynamicProgrammingArrays&Hashing
moderate
16 Mins
18k Attempts

Companies

Counting Binary Strings of a Given Length

DynamicProgramming
easy
7 Mins
19k Attempts

Companies

Counting Subsequences | Problem

DynamicProgrammingArrays&Hashing
moderate
10 Mins
17k Attempts

Companies

Finding the Maximum Sum of Elements that Are Not Adjacent

DynamicProgramming
moderate
9 Mins
29k Attempts

Companies

Choosing Paint Colors for Houses

DynamicProgramming
moderate
10 Mins
21k Attempts

Companies

House Painting with a Variety of Colors

DynamicProgramming
moderate
10 Mins
18k Attempts

Companies

Paint Fence | Problem

DynamicProgramming
moderate
11 Mins
29k Attempts

Companies

Tiling | Exercise

DynamicProgramming
moderate
9 Mins
21k Attempts

Companies

Friends pairing | Exercise

DynamicProgramming
moderate
11 Mins
21k Attempts

Companies

Dividing into Groups of a Fixed Size

DynamicProgramming
moderate
11 Mins
21k Attempts

Companies

Unlimited Stock Transactions for Buying and Selling

DynamicProgramming
moderate
18 Mins
11k Attempts

Companies

Unlimited Stock Transactions with Transaction Fees

DynamicProgramming
moderate
10 Mins
12k Attempts

Companies

Stock Trading_1 | Problem

DynamicProgramming
moderate
13 Mins
10k Attempts

Companies

Selection Sort | Problem

DynamicProgrammingSortingArrays&HashingSearch
moderate
11 Mins
15k Attempts

Companies

Insertion Sort | Problem

DynamicProgramming
moderate
12 Mins
10k Attempts

Companies

Merge Sort | Problem

DynamicProgrammingSortingArrays&HashingSearch
easy
17 Mins
10k Attempts

Companies

Quick Sort | Problem

DynamicProgrammingSortingArrays&HashingSearch
difficult
18 Mins
9k Attempts

Companies

Count Sort Algorithm | Problem

GreedySortingSearchArrays&HashingDynamicProgramming
moderate
10 Mins
17k Attempts

Companies

Radix Sort | Problem

GreedySortingArrays&HashingSearch
moderate
10 Mins
19k Attempts

Companies

Balanced Brackets | Problem

Greedy
moderate
17 Mins
15k Attempts

Companies

Next Greater Element to The Right (NGE) | Problem

GreedyStack&QueuesArrays&Hashing
easy
13 Mins
19k Attempts

Companies

Happy Number

Math&Geometry
moderate
9 Mins
30k Attempts

Companies

Plus One

Math&GeometryArrays&Hashing
easy
7 Mins
18k Attempts

Companies

Single Number

BitManipulationArrays&Hashing
easy
8 Mins
30k Attempts

Companies

Missing Number

BitManipulationArrays&Hashing
easy
11 Mins
25k Attempts

Companies

Digit Frequency

Arrays&HashingWarmup
easy
10 Mins
15k Attempts

Companies

Find Element In An Array

BasicProgrammingStringsBinarySearchMath&Geometry
moderate
13 Mins
18k Attempts

Companies

Determining Coin Change Arrangements | Problem

AdvancedGraphsDynamicProgrammingArrays&Hashing
moderate
11 Mins
18k Attempts

Companies

Saddle Price of a matrix | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/Priorityqueue
moderate
10 Mins
15k Attempts

Companies

Nth Element Of Fibonacci Sequence

BasicProgrammingStringsBinarySearchMath&GeometryHeap/PriorityqueueBacktrackingGraphs
moderate
18 Mins
11k Attempts

Companies

Reverse An Array | Problem

BasicProgrammingStringsBinarySearchMath&GeometryHeap/Priorityqueue
moderate
18 Mins
11k Attempts

Companies

Pattern_II

Warmup
easy
15 Mins
129k Attempts

Companies

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