Counting Coding Problems

Count occurrences and frequencies

166
Total Problems
58
Easy
87
Medium
20
Hard
Start Practicing
1358

Master DSA Topics - January, 2026

Practice problems across 75+ categories

Counting Coding Problems

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

# Problem Difficulty Topics
91 Maximum Score Words Formed by Letters Hard
ArrayHash TableString
92 Maximum Total Area Occupied by Pistons Hard
ArrayHash TableString
93 Maximum Total Damage With Spell Casting Medium
ArrayHash TableTwo Pointers
94 Minimum Array Length After Pair Removals Medium
ArrayHash TableTwo Pointers
95 Minimum Cost to Split an Array Hard
ArrayHash TableDynamic Programming
96 Minimum Deletions for At Most K Distinct Characters Easy
Hash TableStringGreedy
97 Minimum Deletions to Make String K-Special Medium
Hash TableStringGreedy
98 Minimum Increment to Make Array Unique Medium
ArrayGreedySorting
99 Minimum Length of Anagram Concatenation Medium
Hash TableStringCounting
100 Minimum Length of String After Operations Medium
Hash TableStringCounting
101 Minimum Number of Frogs Croaking Medium
StringCounting
102 Minimum Number of Keypresses Medium
Hash TableStringGreedy
103 Minimum Number of Operations to Make Array Empty Medium
ArrayHash TableGreedy
104 Minimum Number of Operations to Make Word K-Periodic Medium
Hash TableStringCounting
105 Minimum Number of Pushes to Type Word II Medium
Hash TableStringGreedy
Showing 91-105 of 166
1 ... 5 6 7 8 9 ... 12

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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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