# Status Problem video Level Completes Likes
364

Find three smallest elements in a given array

Beginner % 0
362

Stack Java Class - Explained

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358

Infix, Postfix and Prefix Notations/Expressions

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357

Count Set bits in a given Number

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356

Check if array contains all unique or distinct numbers

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355

Product of all Unique elements in a given array

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353

Reverse a given number

Beginner % 1
352

Check if given number is perfect square - O(√N) Solution

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350

Find first three largest elements in a given array

Beginner % 0
349

Selection Sort

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346

Valid Brackets – Part 2 | Stack Method

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345

Find the roots of Quadratic Equation – Java Program

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344

Given two strings validate the output string

Beginner % 0
342

Find two smallest elements in a given array

Beginner % 0
341

Front and Back Search in an Array

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339

Multiply with power of 2 without using pow() or * operator

Beginner % 1
337

Find first two largest elements in a given array

Beginner % 0
336

Calculate Logn base r – Java Implementation

Beginner % 0

Find three smallest elements in a given array

Stack Java Class - Explained

Infix, Postfix and Prefix Notations/Expressions

Count Set bits in a given Number

Check if array contains all unique or distinct numbers

Product of all Unique elements in a given array

Reverse a given number

Check if given number is perfect square - O(√N) Solution

Find first three largest elements in a given array

Selection Sort

Valid Brackets – Part 2 | Stack Method

Find the roots of Quadratic Equation – Java Program

Given two strings validate the output string

Find two smallest elements in a given array

Front and Back Search in an Array

Multiply with power of 2 without using pow() or * operator

Find first two largest elements in a given array

Calculate Logn base r – Java Implementation