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All Problems

#	Status	Problem	Level	Completes	Likes
351		Count the number of nodes in a given binary tree	Beginner	%	0
352		Sieve of Eratosthenes - Find all Prime Numbers less than equal to N | Set 2	Medium	%	0
353		Collatz Conjecture - Steps to transform Number to 1	Beginner	%	0
354		Find all Prime Numbers less than equal to N | Set 1	Beginner	%	0
355		Monotone Increasing Digits	Medium	%	1
356		Find third largest element in a given array	Beginner	%	0
357		Max Flow Problem - Ford-Fulkerson Algorithm	Hard	%	0
358		Sum of all Unique elements in a given array	Beginner	%	0
359		Java program to find the largest element in array	Beginner	%	0
360		Find three smallest elements in a given array	Beginner	%	0
361		Convert Prefix to Infix Expression	Medium	%	0
362		Least Recently Used (LRU) Cache – Using LinkedHashSet and Deque | Set 2	Hard	%	0
363		Check if array contains all unique or distinct numbers.	Beginner	%	0
364		Product of all Unique elements in a given array.	Beginner	%	0
365		Check if given number is perfect square - O(√N) Solution	Beginner	%	0
366		Find first three largest elements in a given array	Beginner	%	0
367		Selection Sort – Java Implementation	Beginner	%	0
368		Print Number with its Sign in Java	Beginner	%	0
369		Find the nearest building which has bike | Find nearest specific vertex from source in a graph.	Hard	%	0
370		Find the roots of Quadratic Equation – Java Program	Beginner	%	0
371		Generate all the strings of length n from 0 to k-1.	Medium	%	0
372		Find two smallest elements in a given array	Beginner	%	0
373		Front and Back Search in an Array	Beginner	%	0
374		Print all Unique elements in a given array	Beginner	%	0
375		Find first two largest elements in a given array	Beginner	%	0
376		Calculate Logn base r – Java Implementation	Beginner	%	0
377		Max Flow Problem – Introduction	Hard	%	0
378		Dijkstra Algorithm Implementation – TreeSet and Pair Class	Hard	%	0
379		Java Program to find Sum the elements of an Array	Beginner	%	0
380		Insertion Sort – Java Implementation	Beginner	%	0
381		Rotate the given array in cycles	Beginner	%	0
382		Heap Sort – Java Implementation	Medium	%	0
383		Print First n numbers in Fibonacci Series	Beginner	%	0
384		Find the Area and Perimeter of Rectangle – Java Program	Beginner	%	0
385		Stack Data Structure – Introduction and Implementation	Beginner	%	0

Count the number of nodes in a given binary tree

Sieve of Eratosthenes - Find all Prime Numbers less than equal to N | Set 2

Collatz Conjecture - Steps to transform Number to 1

Find all Prime Numbers less than equal to N | Set 1

Monotone Increasing Digits

Find third largest element in a given array

Max Flow Problem - Ford-Fulkerson Algorithm

Sum of all Unique elements in a given array

Java program to find the largest element in array

Find three smallest elements in a given array

Convert Prefix to Infix Expression

Least Recently Used (LRU) Cache – Using LinkedHashSet and Deque | Set 2

Check if array contains all unique or distinct numbers.

Product of all Unique elements in a given array.

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

Find first three largest elements in a given array

Selection Sort – Java Implementation

Print Number with its Sign in Java

Find the nearest building which has bike | Find nearest specific vertex from source in a graph.

Find the roots of Quadratic Equation – Java Program

Generate all the strings of length n from 0 to k-1.

Find two smallest elements in a given array

Front and Back Search in an Array

Print all Unique elements in a given array

Find first two largest elements in a given array

Calculate Logn base r – Java Implementation

Max Flow Problem – Introduction

Dijkstra Algorithm Implementation – TreeSet and Pair Class

Java Program to find Sum the elements of an Array

Insertion Sort – Java Implementation

Rotate the given array in cycles

Heap Sort – Java Implementation

Print First n numbers in Fibonacci Series

Find the Area and Perimeter of Rectangle – Java Program

Stack Data Structure – Introduction and Implementation

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