Counting Coding Practice Problems - Page 4 | TutorialsPoint

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Master DSA Topics - February, 2026

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Counting Coding Problems

Practice problems frequently asked at Counting • 166 problems | 58 Easy | 87 Medium | 20 Hard

#	Problem	Difficulty	Topics
46	Divide Array Into Equal Pairs	Easy	ArrayHash TableBit Manipulation
47	Divide Array Into Increasing Sequences	Hard	ArrayCounting
48	Equal Sum Arrays With Minimum Number of Operations	Medium	ArrayHash TableGreedy
49	Find All Lonely Numbers in the Array	Medium	ArrayHash TableCounting
50	Find Consecutive Integers from a Data Stream	Medium	Hash TableDesignQueue
51	Find Longest Special Substring That Occurs Thrice I	Medium	Hash TableStringBinary Search
52	Find Longest Special Substring That Occurs Thrice II	Medium	Hash TableStringBinary Search
53	Find Lucky Integer in an Array	Easy	ArrayHash TableCounting
54	Find Most Frequent Vowel and Consonant	Easy	Hash TableStringCounting
55	Find Players With Zero or One Losses	Medium	ArrayHash TableSorting
56	Find Smallest Common Element in All Rows	Medium	ArrayHash TableBinary Search
57	Find the Most Common Response	Medium	ArrayHash TableString
58	Find the Number of Winning Players	Easy	ArrayHash TableCounting
59	Find Valid Pair of Adjacent Digits in String	Easy	Hash TableStringCounting
60	Find Words That Can Be Formed by Characters	Easy	ArrayHash TableString

Showing 46-60 of 166

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public class MyFirstJavaProgram { Edit & Run

/* This is my first java program.

* This will print 'Hello, World!' as the output

*/

public static void main(String []args) {

System.out.println("Hello, World!"); // prints

}

}

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