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Combinatorics Problems - DSA Corner | Talentd

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DSA Corner

Dashboard Questions Topics Companies Sheets

Combinatorics

Topic

43 coding problems covering Combinatorics concepts. Master this topic and improve your problem-solving skills.

43

Problems

2

Easy

15

Medium

26

Hard

Difficulty

All43 Easy2 Medium15 Hard26

Status	Title	Video	Leetcode	Solve	Difficulty	Companies	Topics
	458. Poor Pigs			Solve	Hard	Adobe+2	Combinatorics Dynamic Programming+1
	920. Number of Music Playlists			Solve	Hard	Amazon+3	Combinatorics Dynamic Programming+1
	1359. Count All Valid Pickup and Delivery Options			Solve	Hard	Apple+3	Combinatorics Dynamic Programming+1
	1467. Probability of a Two Boxes Having The Same Number of Distinct Balls			Solve	Hard	-	Array Backtracking+4
	1569. Number of Ways to Reorder Array to Get Same BST			Solve	Hard	Google	Array Binary Search Tree+8
	1643. Kth Smallest Instructions			Solve	Hard	HeavyWater	Array Combinatorics+2
	1735. Count Ways to Make Array With Product			Solve	Hard	Amazon	Array Combinatorics+3
	1830. Minimum Number of Operations to Make String Sorted			Solve	Hard	Samsung	Combinatorics Math+1
	1866. Number of Ways to Rearrange Sticks With K Sticks Visible			Solve	Hard	Google	Combinatorics Dynamic Programming+1
	1916. Count Ways to Build Rooms in an Ant Colony			Solve	Hard	Adobe	Combinatorics Dynamic Programming+4
	2338. Count the Number of Ideal Arrays			Solve	Hard	Infosys	Combinatorics Dynamic Programming+2
	2514. Count Anagrams			Solve	Hard	Mathworks	Combinatorics Counting+3
	2842. Count K-Subsequences of a String With Maximum Beauty			Solve	Hard	Google	Combinatorics Greedy+3
	2912. Number of Ways to Reach Destination in the Grid			Solve	Hard	Uber	Combinatorics Dynamic Programming+1
	2927. Distribute Candies Among Children III			Solve	Hard	Amazon+1	Combinatorics Math
	2954. Count the Number of Infection Sequences			Solve	Hard	SAP+1	Array Combinatorics+1
	2963. Count the Number of Good Partitions			Solve	Hard	Google	Array Combinatorics+2
	3116. Kth Smallest Amount With Single Denomination Combination			Solve	Hard	-	Array Binary Search+4
	3154. Find Number of Ways to Reach the K-th Stair			Solve	Hard	-	Bit Manipulation Combinatorics+3
	3250. Find the Count of Monotonic Pairs I			Solve	Hard	-	Array Combinatorics+3
	3251. Find the Count of Monotonic Pairs II			Solve	Hard	-	Array Combinatorics+3
	3272. Find the Count of Good Integers			Solve	Hard	-	Combinatorics Enumeration+2
	3312. Sorted GCD Pair Queries			Solve	Hard	-	Array Binary Search+6
	3317. Find the Number of Possible Ways for an Event			Solve	Hard	-	Combinatorics Dynamic Programming+1
	3343. Count Number of Balanced Permutations			Solve	Hard	-	Combinatorics Dynamic Programming+2
	3352. Count K-Reducible Numbers Less Than N			Solve	Hard	-	Combinatorics Dynamic Programming+2

Poor Pigs

Hard✓ Solution📹 Video

Adobe+2

Combinatorics Dynamic Programming Math

Number of Music Playlists

Hard✓ Solution📹 Video

Amazon+3

Combinatorics Dynamic Programming Math

Count All Valid Pickup and Delivery Options

Hard✓ Solution📹 Video

Apple+3

Combinatorics Dynamic Programming Math

Probability of a Two Boxes Having The Same Number of Distinct Balls

Hard📹 Video

Array Backtracking Combinatorics+3

Number of Ways to Reorder Array to Get Same BST

Hard✓ Solution📹 Video

Google

Array Binary Search Tree Binary Tree+7

Kth Smallest Instructions

Hard📹 Video

HeavyWater

Array Combinatorics Dynamic Programming+1

Count Ways to Make Array With Product

Hard📹 Video

Amazon

Array Combinatorics Dynamic Programming+2

Minimum Number of Operations to Make String Sorted

Hard📹 Video

Samsung

Combinatorics Math String

Number of Ways to Rearrange Sticks With K Sticks Visible

Hard📹 Video

Google

Combinatorics Dynamic Programming Math

Count Ways to Build Rooms in an Ant Colony

Hard📹 Video

Adobe

Combinatorics Dynamic Programming Graph+3

Count the Number of Ideal Arrays

Hard📹 Video

Infosys

Combinatorics Dynamic Programming Math+1

Count Anagrams

Hard📹 Video

Mathworks

Combinatorics Counting Hash Table+2

Count K-Subsequences of a String With Maximum Beauty

Hard📹 Video

Google

Combinatorics Greedy Hash Table+2

Number of Ways to Reach Destination in the Grid

Hard📹 Video

Uber

Combinatorics Dynamic Programming Math

Distribute Candies Among Children III

Hard📹 Video

Amazon+1

Combinatorics Math

Count the Number of Infection Sequences

Hard📹 Video

SAP+1

Array Combinatorics Math

Count the Number of Good Partitions

Hard📹 Video

Google

Array Combinatorics Hash Table+1

Kth Smallest Amount With Single Denomination Combination

Hard📹 Video

Array Binary Search Bit Manipulation+3

Find Number of Ways to Reach the K-th Stair

Hard📹 Video

Bit Manipulation Combinatorics Dynamic Programming+2

Find the Count of Monotonic Pairs I

Hard📹 Video

Array Combinatorics Dynamic Programming+2

Find the Count of Monotonic Pairs II

Hard📹 Video

Array Combinatorics Dynamic Programming+2

Find the Count of Good Integers

Hard📹 Video

Combinatorics Enumeration Hash Table+1

Sorted GCD Pair Queries

Hard📹 Video

Array Binary Search Combinatorics+5

Find the Number of Possible Ways for an Event

Hard📹 Video

Combinatorics Dynamic Programming Math

Count Number of Balanced Permutations

Hard📹 Video

Combinatorics Dynamic Programming Math+1

Count K-Reducible Numbers Less Than N

Hard📹 Video

Combinatorics Dynamic Programming Math+1