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Find sum of elements less than A and greater than B in an array

PrepbytesJune 11, 2020June 17, 2022

Concepts Used: Sorting Difficulty Level: Medium Problem Statement (Simplified): You're provided an array containing N elements, you have to answer q queries. In each query, you're provided with x and...

Sorting interview programming

Find the misplaced elements

PrepbytesJune 11, 2020June 17, 2022

Concepts Used: Sorting Difficulty Level: Easy Problem Statement (Simplified): Find how many elements change their place after sorting array. Test case: Input: 1 5 8 4 2 1 9 Output:...

Strings Interview Questions

Convert Integer number to Roman Number

PrepbytesJune 11, 2020March 28, 2022

Concepts Used: Strings Difficulty Level: Medium Problem Statement (Simplified): For a given number between 0 and 4000, print out it's Roman Form. Test Case: Input: 1 49 Output: XLIX Explanation:...

Strings Interview Questions

Tina loves A

PrepbytesJune 11, 2020May 18, 2022

Concepts Used: Strings, Basic Mathematics Difficulty Level: Easy Problem Statement (Simplified): Print the maximum length of string which can be formed such that the number of a is more than...

Strings Interview Questions

Minimum Number of Operations to Make String Palindrome

PrepbytesJune 11, 2020July 24, 2023

Palindrome string is a string which is the same on reading from the front side as well as on the rear side. Example of a palindrome string is “NAMAN” as...

Mathematics Interview Questions

Sum of first N primes with no odd prime digit

PrepbytesJune 11, 2020March 31, 2022

Concepts Used: Mathematics Difficulty Level: Medium Problem Statement (Simplified): For a given number N, find the sum of first N primes which don't contain any odd prime digits (3,5,7) in...

Mathematics Interview Questions

Operate Numbers

PrepbytesJune 11, 2020March 25, 2022

Concepts Used: Mathematics Difficulty Level: Medium Problem Statement (Simplified): Perform following operations until one number becomes 0 and print the total number of operations. 1) Subtract larger number from smaller...

Strings Interview Questions

Find the missing number in sequence given as string

PrepbytesJune 11, 2020November 27, 2023

In the realm of problem-solving and data manipulation, uncovering the missing element in a sequence embedded within a string can be a perplexing yet intriguing task. This article delves into...

Mathematics Interview Questions

Total numbers divisible by a number in a given range

PrepbytesJune 11, 2020June 17, 2022

Concepts Used: Mathematics Difficulty Level: Hard Problem Statement (Simplified): For given three numbers r,p,q. We have to find the total number of values divisible by r in a range [p,q]....

Strings Interview Questions

FRACTION

PrepbytesJune 11, 2020April 6, 2022

Concepts Used Strings Difficulty Level Hard Problem Statement (Simplified): Print the decimal output of fraction of two given numbers and enclose the repeating part in decimal places in brackets. For...

Mathematics Interview Questions

Hero Villian

PrepbytesJune 11, 2020March 30, 2022

Concepts Used: Mathematics Difficulty Level: Medium Problem Statement (Simplified): For a given array of integers print the total number of integers which divides all the array elements and are less...

Mathematics Interview Questions

Prime Numbers

PrepbytesJune 11, 2020May 23, 2022

Concepts Used: Mathematics Difficulty Level: Easy Problem Statement (Simplified): For a given number N, print Yes if it is prime, else print No. Prime Numbers: Numbers that are divisible by...

Stacks Interview Questions

Find Substring

PrepbytesJune 11, 2020March 21, 2022

Concepts Used Strings Difficulty Level Easy Problem Statement (Simplified): For given two strings A and B, print out if B is a substring of A or not. If yes print...

Strings Interview Questions

Number of Substrings Containing All Three Characters

PrepbytesJune 11, 2020March 31, 2022

Concepts Used Strings, Sliding Window Algorithm using two pointers Difficulty Level Medium Problem Statement (Simplified): Print the number of substrings containing all three characters i.e. a,b,c at least once in...

Stacks Interview Questions

Power Of 2

PrepbytesJune 11, 2020March 22, 2022

Concepts Used Strings, Mathematics Difficulty Level Hard Problem Statement (Simplified): Find if the number given as a string is the power of two or not. Return 1 if yes, else...

Recursion Interview Questions

Character Combine

PrepbytesJune 11, 2020March 21, 2022

CONCEPTS USED: Recursion DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given two characters C1, C2 and an integer K, print all the possible K length combinations of both the characters. Print the...

Recursion Interview Programming

REVERSE A LINKED LIST

PrepbytesJune 11, 2020March 30, 2022

Concepts Used Linked list,recursion. Difficulty Level Easy. Problem Statement : Given pointer to the head node of a linked list, the task is to reverse the linked list. Example: Assume...

Greedy Algo Interview Coding

AMAN RELATIVES

PrepbytesJune 11, 2020March 29, 2022

CONCEPTS USED: Greedy algorithm,Prim's minimum spanning tree. DIFFICULTY LEVEL: Hard. PROBLEM STATEMENT(SIMPLIFIED): Aman came home after a long time and he wants to visit all the relatives. The total number...

Greedy Algo Interview Coding

STACK SUM

PrepbytesJune 11, 2020March 30, 2022

CONCEPTS USED: Greedy algorithm. DIFFICULTY LEVEL: Medium. PROBLEM STATEMENT(SIMPLIFIED): You are given three stacks containing positive numbers. Let S1 be the sum of elements present in stack-1, S2 be the...

Greedy Algo Competitive Coding

Dedicate Length

PrepbytesJune 11, 2020March 28, 2022

CONCEPTS USED: Greedy algorithm. DIFFICULTY LEVEL: Medium. PROBLEM STATEMENT(SIMPLIFIED): Nikhil wants to bring sofa(s) to his room. But he wants to dedicate the entire length of the room to the...

Greedy Algo Interview Coding

REMAINING GOLD COIN

PrepbytesJune 11, 2020May 16, 2022

CONCEPTS USED: Greedy algorithm. DIFFICULTY LEVEL: Medium. PROBLEM STATEMENT(SIMPLIFIED): You have a bag full of Gold Coins. Each coin has a positive integer inscribed on it, that denotes the value...

Greedy Algo Interview Coding

LARGEST NUMBER

PrepbytesJune 11, 2020March 29, 2022

CONCEPTS USED: Greedy algorithm DIFFICULTY LEVEL: Easy. PROBLEM STATEMENT(SIMPLIFIED): Arnab is given a number N, he is asked to remove one digit and print the largest possible number.Help Arnab find...

Greedy Algo Interview Coding

MAXIMIZE FLIP SIGN

PrepbytesJune 11, 2020March 29, 2022

CONCEPTS USED: Greedy algorithm. DIFFICULTY LEVEL: Medium. PROBLEM STATEMENT(SIMPLIFIED): Tina knows PrepBuddy likes to play games with array elements. So she gave PrepBuddy an array A containing N integers. She...

Greedy Algo Interview Coding

MAXIMUM VALUE

PrepbytesJune 11, 2020March 30, 2022

CONCEPTS USED: Greedy algorithm(fractional knapsack) DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): One day some guests came to Aman's home. Aman's mama told him to bring N items from the market and...

Greedy Algo Competitive Coding

FIND SHELTER

PrepbytesJune 11, 2020March 28, 2022

CONCEPTS USED: Greedy algorithm. DIFFICULTY LEVEL: Easy. PROBLEM STATEMENT(SIMPLIFIED): Nishant is lost along with his N−1 wandering friends. Now they have to find some shelter. Nishant and his N−1 friends...

Greedy Algo Interview Coding

KARAN’S RELATIVES

PrepbytesJune 11, 2020March 29, 2022

CONCEPTS USED: Greedy algorithm, Kruskal's algorithm. DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Karan's came home after a long time and he wants to visit all the relatives. The total number of...

Greedy Algo Competitive Coding

BECOME KING

PrepbytesJune 11, 2020March 23, 2022

CONCEPTS USED: Greedy algorithm, Priority Queues DIFFICULTY LEVEL: Medium. PROBLEM STATEMENT(SIMPLIFIED): Himanshu now wants to become the king. He has N persons to defeat before he can become the King....

Greedy Algo Competitive Coding

KABADDI MODIFIED

PrepbytesJune 11, 2020March 28, 2022

CONCEPTS USED: Greedy algorithm DIFFICULTY LEVEL: Medium. PROBLEM STATEMENT(SIMPLIFIED): Arnab has made a team and he wants to fight with another team with some modified form of Kabaddi. In this...

Greedy Algo Interview Coding

PROFIT PRIORITY

PrepbytesJune 11, 2020March 30, 2022

CONCEPTS USED: Greedy algorithm. DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): One day Aman went to the office and his boss gave him some tasks to finish within the given deadline and...

Greedy Algo Competitive Coding

FRACTION

PrepbytesJune 11, 2020April 6, 2022

CONCEPTS USED: Greedy algorithm. DIFFICULTY LEVEL: Medium. PROBLEM STATEMENT(SIMPLIFIED): Now Arnab is given a fraction N/D. He is asked to divide the fraction in sum of unique unit fractions where...

PrepBytes

Find sum of elements less than A and greater than B in an array

Find the misplaced elements

Convert Integer number to Roman Number

Tina loves A

Minimum Number of Operations to Make String Palindrome

Sum of first N primes with no odd prime digit

Operate Numbers

Find the missing number in sequence given as string

Total numbers divisible by a number in a given range

FRACTION

Hero Villian

Prime Numbers

Find Substring

Number of Substrings Containing All Three Characters

Power Of 2

Character Combine

REVERSE A LINKED LIST

AMAN RELATIVES

STACK SUM

Dedicate Length

REMAINING GOLD COIN

LARGEST NUMBER

MAXIMIZE FLIP SIGN

MAXIMUM VALUE

FIND SHELTER

KARAN’S RELATIVES

BECOME KING

KABADDI MODIFIED

PROFIT PRIORITY

FRACTION

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