Dashboard Questions Topics Companies Sheets

Counting

Topic

152 coding problems covering Counting concepts. Master this topic and improve your problem-solving skills.

152

Problems

Easy

Medium

Hard

Difficulty

All152 Easy53 Medium84 Hard15

Title	Solve	Difficulty	Companies	Topics
169. Majority Element	Solve	Easy	Adobe+8	Array Counting+3
383. Ransom Note	Solve	Easy	Adobe+3	Counting Hash Table+1
387. First Unique Character in a String	Solve	Easy	Amazon+8	Counting Hash Table+2
594. Longest Harmonious Subsequence	Solve	Easy	LiveRamp	Array Counting+3
819. Most Common Word	Solve	Easy	Amazon	Array Counting+2
884. Uncommon Words from Two Sentences	Solve	Easy	Facebook+1	Counting Hash Table+1
914. X of a Kind in a Deck of Cards	Solve	Easy	Google	Array Counting+3
1128. Number of Equivalent Domino Pairs	Solve	Easy	Adobe+1	Array Counting+1
1160. Find Words That Can Be Formed by Characters	Solve	Easy	Amazon+3	Array Counting+2
1189. Maximum Number of Balloons	Solve	Easy	Adobe	Counting Hash Table+1
1213. Intersection of Three Sorted Arrays	Solve	Easy	Facebook	Array Binary Search+2
1221. Split a String in Balanced Strings	Solve	Easy	Adobe+3	Counting Greedy+1
1356. Sort Integers by The Number of 1 Bits	Solve	Easy	Accenture+6	Array Bit Manipulation+2
1365. How Many Numbers Are Smaller Than the Current Number	Solve	Easy	Amazon+1	Array Counting+2
1370. Increasing Decreasing String	Solve	Easy	Akuna Capital+1	Counting Hash Table+1
1394. Find Lucky Integer in an Array	Solve	Easy	Microsoft	Array Counting+1
1512. Number of Good Pairs	Solve	Easy	Adobe+2	Array Counting+2
1603. Design Parking System	Solve	Easy	Amazon	Counting Design+1
1684. Count the Number of Consistent Strings	Solve	Easy	Amazon+1	Array Bit Manipulation+3
1704. Determine if String Halves Are Alike	Solve	Easy	Amazon	Counting String
1742. Maximum Number of Balls in a Box	Solve	Easy	AppDynamics+1	Counting Hash Table+1
1748. Sum of Unique Elements	Solve	Easy	Facebook	Array Counting+1
1790. Check if One String Swap Can Make Strings Equal	Solve	Easy	Facebook	Counting Hash Table+1
1854. Maximum Population Year	Solve	Easy	Bloomberg+2	Array Counting+1
1876. Substrings of Size Three with Distinct Characters	Solve	Easy	Quora	Counting Hash Table+2
1897. Redistribute Characters to Make All Strings Equal	Solve	Easy	Moengage	Counting Hash Table+1
1941. Check if All Characters Have Equal Number of Occurrences	Solve	Easy	Bolt	Counting Hash Table+1
2006. Count Number of Pairs With Absolute Difference K	Solve	Easy	Amazon	Array Counting+1
2053. Kth Distinct String in an Array	Solve	Easy	Amazon	Array Counting+2
2068. Check Whether Two Strings are Almost Equivalent	Solve	Easy	Salesforce	Counting Hash Table+1
2085. Count Common Words With One Occurrence	Solve	Easy	Jane Street	Array Counting+2
2148. Count Elements With Strictly Smaller and Greater Elements	Solve	Easy	-	Array Counting+1
2190. Most Frequent Number Following Key In an Array	Solve	Easy	Google	Array Counting+1
2206. Divide Array Into Equal Pairs	Solve	Easy	Microsoft	Array Bit Manipulation+2
2248. Intersection of Multiple Arrays	Solve	Easy	Uber	Array Counting+2
2283. Check if Number Has Equal Digit Count and Digit Value	Solve	Easy	Google+1	Counting Hash Table+1
2287. Rearrange Characters to Make Target String	Solve	Easy	Amazon	Counting Hash Table+1
2341. Maximum Number of Pairs in Array	Solve	Easy	Altimetrik+1	Array Counting+1
2347. Best Poker Hand	Solve	Easy	Amazon+1	Array Counting+1
2351. First Letter to Appear Twice	Solve	Easy	Google	Bit Manipulation Counting+2
2404. Most Frequent Even Element	Solve	Easy	-	Array Counting+1
2423. Remove Letter To Equalize Frequency	Solve	Easy	Bloomberg+1	Counting Hash Table+1
2506. Count Pairs Of Similar Strings	Solve	Easy	Oracle	Array Bit Manipulation+3
2529. Maximum Count of Positive Integer and Negative Integer	Solve	Easy	Amazon+2	Array Binary Search+1
2586. Count the Number of Vowel Strings in Range	Solve	Easy	PayPal	Array Counting+1
2748. Number of Beautiful Pairs	Solve	Easy	-	Array Counting+3
2833. Furthest Point From Origin	Solve	Easy	Amazon+1	Counting String
2960. Count Tested Devices After Test Operations	Solve	Easy	Accenture	Array Counting+1
3005. Count Elements With Maximum Frequency	Solve	Easy	-	Array Counting+1
3046. Split the Array	Solve	Easy	-	Array Counting+1