Prefix Sum Coding Practice Problems - Page 2 | TutorialsPoint

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Prefix Sum Coding Problems

Practice problems frequently asked at Prefix Sum • 208 problems | 18 Easy | 128 Medium | 61 Hard

#	Problem	Difficulty	Topics
16	Corporate Flight Bookings	Medium	ArrayPrefix Sum
17	Count Beautiful Substrings I	Medium	Hash TableMathString
18	Count Beautiful Substrings II	Hard	Hash TableMathString
19	Count Increasing Quadruplets	Hard	ArrayDynamic ProgrammingBinary Indexed Tree
20	Count Number of Nice Subarrays	Medium	ArrayHash TableMath
21	Count of Interesting Subarrays	Medium	ArrayHash TablePrefix Sum
22	Count Partitions with Even Sum Difference	Easy	ArrayMathPrefix Sum
23	Count Partitions With Max-Min Difference at Most K	Medium	ArrayDynamic ProgrammingQueue
24	Count Positions on Street With Required Brightness	Medium	ArrayPrefix Sum
25	Count Subarrays With Median K	Hard	ArrayHash TablePrefix Sum
26	Count Subarrays With Score Less Than K	Hard	ArrayBinary SearchSliding Window
27	Count Submatrices With Equal Frequency of X and Y	Medium	ArrayMatrixPrefix Sum
28	Count Submatrices with Top-Left Element and Sum Less Than k	Medium	ArrayMatrixPrefix Sum
29	Count Substrings That Satisfy K-Constraint II	Hard	ArrayStringBinary Search
30	Count the Hidden Sequences	Medium	ArrayPrefix Sum

Showing 16-30 of 208

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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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