# Status Problem Level Completes Likes
2

Calculate Logn base r – Java Implementation

Beginner % 0
3

Check if Given Number is power of 2.

Beginner % 1
5

Find the Area of Triangle using base and height - Java Program

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Get the Sum of Digits in a number till it become a single digit

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Find the Circumference of a Circle - Java Program

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Check if two Strings are equal without using built-in function - Java

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Floyd’s Triangle – Java Implementation

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13

Swap two numbers using Bitwise XOR Operator

Medium % 1
14

Java Program to determine if Given Year is Leap Year

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15

Fizz Buzz Challenge - Java Implementation

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16

Divide with power of 2 without using pow() or / operator

Beginner % 1
17

Minimum number of guesses needed to find a specific number

Beginner % 0
18

Find the Area of a Triangle Using coordinates

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Java Program to find if Triangle can be formed using given 3 sides

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Find the Area of a Triangle Given Three Sides – Heron’s Formula

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21

Find Factorial of a given Number

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Find Sum of all Digits of a Number

Beginner % 0
23

Check whether the given number is a perfect square

Beginner % 0
24

Algorithm to calculate power(k,n).

Beginner % 1
25

Find remainder without using modulo operator

Beginner % 0
26

Swap two numbers without using extra variable

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27

Find numbers that are palindrome in the decimal and octal Representations

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28

Colorful Numbers

Hard % 0
30

Convert Decimal into Irreducible Fraction

Beginner % 0
31

Clock Angle Problem

Beginner % 1
32

Euclidean algorithm - Greatest Common Divisor(GCD)

Beginner % 0

Calculate Logn base r – Java Implementation

Check if Given Number is power of 2.

Find the Area of Triangle using base and height - Java Program

Get the Sum of Digits in a number till it become a single digit

Find the Circumference of a Circle - Java Program

Check if two Strings are equal without using built-in function - Java

Floyd’s Triangle – Java Implementation

Swap two numbers using Bitwise XOR Operator

Java Program to determine if Given Year is Leap Year

Fizz Buzz Challenge - Java Implementation

Divide with power of 2 without using pow() or / operator

Minimum number of guesses needed to find a specific number

Find the Area of a Triangle Using coordinates

Java Program to find if Triangle can be formed using given 3 sides

Find the Area of a Triangle Given Three Sides – Heron’s Formula

Find Factorial of a given Number

Find Sum of all Digits of a Number

Check whether the given number is a perfect square

Algorithm to calculate power(k,n).

Find remainder without using modulo operator

Swap two numbers without using extra variable

Find numbers that are palindrome in the decimal and octal Representations

Colorful Numbers

Convert Decimal into Irreducible Fraction

Clock Angle Problem

Euclidean algorithm - Greatest Common Divisor(GCD)