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Articles
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Campus Ambassadors
Uncover Diverse Options in Colleges and Companies
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ch_dktomar
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Current POTD Streak
STREAK
00
/970
days
Language Used
C++, Java
Institute
Central University of Rajasthan
Overall Coding Score
541
Total Problem Solved
587
Monthly Coding Score
_ _
Contributor
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
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How Badges Work
Course Attended
Contest Attended
SCHOOL (95)
BASIC (273)
EASY (171)
MEDIUM (46)
HARD (2)
Extract the integers
Find difference between sum of diagonals
Cube root of a number
Sum of Digits Multiple - copy
1s Complement
Even Odd Sum
Front-Back Transformation - copy
Full Prime
Perfect Arrays
Sum of AP series
Sum of odd and even elements
Upper case conversion
Remove vowels from string
Sum of Digit is Pallindrome or not
Decimal to any base conversion
Value equal to index value
Remove Spaces
Fascinating Number
Parallel or Perpendicular?
12 hour clock Multiplication
12 hour clock subtraction
12 hour clock addition
Remainder Evaluation
Time to Words
Convert standard time to military time
Automorphic Number
Lower case to upper case
Triangle shrinking downwards
Pattern of Strings
Find the median
Number of divisors
Perfect Number
Diagonal sum
Combinational Logic
Mean
Multiply Array
Compete the skills
Check String
Count of camel case characters
Print the left element
Distance between 2 points
Sum of elements in a matrix
Sum Palindrome
Reversing the vowels
Display longest name
Floyd's triangle
GCD of two numbers
Java Switch Case statement
Java Arrays | Set 1
Series AP
Sum of Series
All divisors of a natural number
Check for Binary
Compound Interest
Binary representation
Average in a stream
Smaller and Larger
Armstrong Numbers
Maximum and Minimum Of Array Elements
Sum of GP
Number Pattern
Identical Matrices
Addition of two square matrices
Simple Interest
Palindrome
Reverse digits
Pattern Printing
Remove characters from alphanumeric string
nPr
Print 1 to n without using loops
Sum of an AP
Surface Area and Volume of Cuboid
Multiplication Table
Vowel or Not
Area of Rectangle, Right Angled Triangle and Circle
Print Elements of Array
Addition of Two Numbers
Small Factorial
Swap two numbers
Greatest of three numbers
a^b (Set 1)-(ambiguous)
Odd or Even
Sum of Array Elements
if-else (Decision Making)
Java Hello World
Java loops | Set 1
Find Index
Count type of Characters
DELETED - Find Count Digit[Duplicate]
Number of Diagonals
Sum of Array
Reverse an Array
Sum Of Digits
Java Strings | Set 1
At least two greater elements
Sort in specific order
Fibonacci to N
Average Count Array
Anagram Strings
Count pair sum
Java Iterator
C++ 2-D Arrays | Set-2
Count the characters
Finding Position
Segregate Even and Odd numbers
Greater on right side
Sorting Employees
Lucky number and a sum
Rearrange the array
Repeated IDs
Human and the tower
Print K smallest elements in their original order
Buy chocolates and save N rupees
C++ Sets
Reading books
Factorial Number
Count numbers containing 4
Repeated sum of digits
Jumping Geek
Sum of Digits Divisibility
Sum of primes
Multiples Power
Rearranging array
The AND Gate
The OR Gate
Good String
Mega Sale
Maximize OR
Find unique element
Rectangle Number
Sum of Digit Modified
Repeated Character
Good or Bad string
Numbers having alternate bits
Sort String
Difference between highest and lowest occurrence
Binary representation of previous number
Anshuman's Favourite Number
An Easy problem
set-bits and number
Sum of first n terms
Generate all cyclic permutations of a number
Smallest power of 2 greater than or equal to n
Swapping Triangles
Print first n Fibonacci Numbers
Sum of diagonals
Sums of i-th row and i-th column
Wrong Ball
Magical String[Duplicate Problem]
The Muskteers
Missing number in shuffled array
Last index of One
Tracks
Find the fine
Red OR Green
Decimal to Base K conversion
String of Commons
Three distinct factors
Strong Numbers
Thief trying to escape
Minimum Product of k Integers
Set the rightmost unset bit
The Cycle Game
Sum of all subsets formed by first N natural numbers
Sum of Digits Prime/Non-Prime
Find N-th term in the series
Sort the string in descending order
Count number of elements between two given elements in array
Remove all characters other than alphabets
Ishwar and his proposals
Smallest number with maximum and minimum divisor in an array
Maximum triplet sum in array
Tough Competitors
Narcissistic number
Finding-Pairs
Last index of a character in the string
Special Series Sum
Pattern for Reverse Character Bridge
Special Odd Series Sum
Check whether two numbers differ at one bit position only
Check for three consecutive numbers
Squares Difference
Break the digital root code
Count the characters in each word in a given sentence
Find sum of even factors of a number
The problem of identical arrays
Count number of equal pairs in a string
Extract the phone number
Sandwiched_Vowels
The Remaining Cake
Product is even or odd?
Tiger Zinda Hai
Count digits in given number N which divide N
Compare two fractions
C++ Nega Bit
Palindrome in both Decimal and Binary
Sophie Germain Prime
Encoding names
Set all odd bits
Message Spreading
The amazing number
Merge and Sort
Last duplicate element in a sorted array
Sum of f(a[i], a[j]) over all pairs in an array of n integers
Remove consonants from a string
Game with nos
Why is Melody so chocolaty?
Ishaan's Sum Problem
Strange Sort - copy
Same frequency in two halves
Tywin's War Strategy
Ishaan Loves Chocolates
Dull Jack
Chocolate lengths
Factor OR Multiple
Jay's Apples
Crazy String
Midori and chocolates
Cricket Average
Print the Kth Digit
Corner Digits Sum
Perfect Array
Find all factorial numbers less than or equal to N
Square Divisors
Friendly Array
Merge two strings
Mind Game
Duck Number
Sum of Consecutives
Count Sorted Rows
Check Arithmetic Progression
Longest Equal Prefix
Minimum Difference among K
Sort first half in ascending and second half in descending
Number of unique rectangles
Numbers having two adjacent set bits
Shortest un-ordered subarray
Absolute Difference of 1
Remove common characters and concatenate
Longest increasing subarray
Repeated Sum and then Multiply
Quick Left Rotation
Find the position of M-th item
Closest Number
Positive and negative elements
Boolean String Value
Equalization of an array
Anagram Palindrome
Minimum sum of factors
Pattern Jumping
Sum of distinct elements for a limited range
Stable Sort and Position
Max Odd Sum
Distinct Adjacent Element
Difference between sums of odd and even digits
Just One Mismatch
Finger Game
Smallest number repeating K times
Minimum number to form the sum even
Pronic Number
Weird Number
Strong Numbers
Doubling the value
Numbers containing 0's from 1 to N
Sort the Half Sorted
First K natural numbers
Odd to Even
Minimum number of flipped bits
Sum of distinct elements
nth digit of Fibonacci
Perfect Squares in a Range
Count zero
Odd Divisors
Reverse sub array
Convert from any base to decimal
Bit Difference
Find number of days between two given dates
Student record
Change the string
Nth Even Fibonacci Number
Number is sparse or not
Maximum product of two numbers
Swap two nibbles in a byte
Rock Paper Scissors!
Check if the number is Fibonacci
Parity of unsigned integer
Rotate Array
Sort The Array
Repetitive Addition Of Digits
Maximum distance
2's Complement
GCD of Array
Remove Consecutive Characters
Sort a String
Binary number to decimal number
Power of 2
Number of Integer solutions
Check if given four points form a square
Rotating an Array
Triangle growing downwards
Compare two Large Numbers
The Lazy Caterer's Problem
Reverse array in groups
The XOR Gate
Adam Number
Composite Series
Professor and Parties
Common Divisors
Perfect Reversible String
Max-Min conversion
Matching Pair
Find Substring from last of the Given String
Find duplicates under given constraints
Form largest number from digits
Sort the fest
XOR play
Tidy Number
Check if date is valid
Leap Year
Reverse a String
Largest Element in Array
Print an array in Pendulum Arrangement
Java Operators(Arithmetic) | Set 1
Find the smallest and second smallest element in an array
Count Pairs Odd Xor
Fibonacci in the array
Count Squares
Make a Distinct Digit Array
Replace the Bit
Count numbers divisible by M
LCM And GCD
Searching a number
Multiply 2 matrices
Roots of Quadratic Equation
Elements in the Range
Index of first 1 in a sorted array of 0s and 1s
Power of Four
Prime Number
Binary Array Sorting
Immediate Smaller Element
Check perfect square
Area of a triangle
Alternative Sorting
Set kth bit
Evaluate the expression
Sum Terms Nth Row
Check if a number is power of another number
Middle of Three
Celsius to Fahrenheit Conversion
Search an Element in an array
Maximum money
Cyclically rotate an array by one
Sum Triangle for given array
Toggle bits in the given range
Find minimum and maximum element in an array
Find second largest element
Balanced Array
Check Binary String
Factorial
Maximum Occuring Character
Krishnamurthy number
Fighting the darkness
Decimal to binary
Check set bits
Elements before which no element is bigger
Encrypt the string - 1
Missing number
Disarium Number
Find first repeated character
Find all pairs with a given sum
Find n-th Fortunate Number
Help Ishaan
Save Ironman
Pair the minimum
Java Collections | Set 6 (Stack)
Geek and his Tricky Series
Swap bits
Search in a matrix
Minimum element in a sorted and rotated array
Maximum Collatz sequence length
Maximum Diamonds
Largest power of prime
Swap all odd and even bits
Reach a given score
Shop in Candy Store
Largest number possible
Element that appears once where every element occurs twice
Distinct absolute array elements
Next sparse binary number
Single Number
Remove Duplicates
Kth distance
Addition of submatrix
Sum of two numbers represented as arrays
Facing the sun
Triangular Number
Convert array into Zig-Zag fashion
Make Number Odd
Key Pair
Product array puzzle
Length Unsorted Subarray
Reverse Bits
Lucky Number
Bitonic Point
Finding Number
Check if a given string is a rotation of a palindrome
Count Substrings
Isomorphic Strings
Forming Rectangle
Maximum product
Print the pattern
Number of compositions of a natural number
Linear Diophantine Equations
Maximum number of partitions that can be sorted individually to make sorted
Jumping Caterpillars
C++ Function overloading
Same characters in two strings
Candy Packets
Absolute distinct count
Generate Binary Numbers
Prime Factors
Check if divisible by 10
Binary representation of next number
Make a string from another string
Minimum changes to make all substrings distinct
Sorting all array elements except one
Smallest number by rearranging digits of a given number
Even Fibonacci Numbers Sum
Print Matrix in snake Pattern
Boundary Elements of Matrix
Common elements
Minimal Summing Up
Reverse words in a given string
Number of 1 Bits
Does array represent Heap
Largest Fibonacci Subsequence
Minimum rotations to unlock a circular lock
Maximize sum(arr[i]*i) of an Array
Set all the bits in given range of a number
Natural Sum
Find the closest number
Semi Prime
Check if the number is balanced
Earthquake and the Paint Shop
Balanced string
Check if actual binary representation of a number is palindrome
Winner of an election
Convert the string
Numbers with prime frequencies greater than or equal to k
Play With OR
Lottery Money
Arya's Long String
Perfect XOR
Numbers having alternate bits in range 1 to n
Different Kinds of Objects
Maximum Volume of a Rectangular Box
Find Unique pair in an array with pairs of numbers
Sum of upper and lower triangles
Sum of elements between k1'th and k2'th smallest elements
Max Sum Subarray of size K
Largest Permutation
Swap and Maximize
The Counting Game !!
Make a Palindrome
Twisted Prime Number
Move all zeroes to end of array
Print Pattern
Find the Highest number
Empty The Tank
Minimum Distinct Ids
Primitive Typing
Longest Common Prefix in an Array
Pell Number
Maximum number of zeroes
Count increasing Subarrays
Remove all duplicates from a given string
Remove b and ac from a given string
Partition Point in the Array
Break Numbers[Duplicate problem]
Even and odd elements at even and odd positions
Row with minimum number of 1's
Total number of Strings
Overlapping rectangles
Pattern Searching
Alternate positive and negative numbers
Shortest path from 1 to n
Sieve of Eratosthenes
Number Of Open Doors
Amend The Sentence
Pairs with difference k
Equal Sum and Product
First Repeating Element
Good Pairs
Distinct Substrings
Count Odd Factors
Series GP
Maximize Toys
Magic Number
Trailing zeroes in factorial
Subarray with least average
Exponentiation (Set 2)
Non Repeating Character
Minimum number of Coins
Nth Fibonacci Number
Palindrome numbers
Rectangles in N*N Board
Squares in N*N Chessboard
Parenthesis Checker
Rotation
Maximum Gap
Pascal Triangle
Maximum Possible Sum of Products
Y shaped pattern
Inverted triangle of stars
Missing number in array
Unusual String Sort
Check if string is rotated by two places
Maximum sum of hour glass
Split the string
Adding One
Anagram
Second Largest
Remaining String
Sum of all prime numbers between 1 and N.
Number of factors
Palindrome String
Bitonic Generator Sort
Rightmost different bit
Transpose of Matrix
Difficulty of sentence
Check if array is sorted
Product Pair
Count Alphabets
Minimize the sum of product
Party of Couples
Segregate 0s and 1s
Twice Counter
Frequencies of Limited Range Array Elements
Count Digits
Part of it.
XOR Cipher
Fibonacci Sum
Check If two Line segments Intersect
Segregate even and odd nodes in a Linked List
Maximum of all subarrays of size k
Row with max 1s
Maximum Difference
Add Binary Strings
Number of Coins
Activity Selection
Maximize Number of 1's
Sum of two elements with sum nearest to zero
Equal Sum Partition
Pythagorean Triplet
Count the numbers satisfying (m + sum(m) + sum(sum(m))) equals to N
Arranging the array
Sum of Products
3 Divisors
Missing number in matrix
Find k-th character in string
Find Prime numbers in a range
Number of positive integral solutions
Most frequent word in an array of strings
Numbers with 0 as a digit
Sum of two large numbers
XOR Game
First and last occurrences of x
Transform to prime
Count triplets with sum smaller than X
Majority Element
Count Occurences of Anagrams
Spirally traversing a matrix
Count the number of possible triangles
Boolean Matrix
Count total set bits
Number of paths
Rearrange Array Alternately
Permutations of a given string
Sort an array of 0s, 1s and 2s
Sum of Middle Elements of two sorted arrays
Large Factorial
Search in a Rotated Array
Find missing in second array
Max value after m range operation
Shuffle integers
Count Smaller elements
Merge Without Extra Space