Toggle Bit to Check Multiple of 5 in Binary Representation
Check if a binary number can become a multiple of 5 by toggling exactly one bit
mediumBit Manipulation
42
Difficulty Levels
Choose your challenge. Start easy and work your way up.
215
Total Problems
Print Largest Even Number – Digits
Find the largest possible even number that can be formed using all the digits from a given number.
medium
42
Longest Non-Overlapping Prefix Suffix
Find the longest prefix of a string that is also a suffix, ensuring they do not overlap.
medium
43
Expand Alphabets
Given a string containing alternating alphabets and their counts, expand each alphabet by repeating it according to its count.
medium
42
Longest Increasing Subset – From Last
Find the longest strictly increasing subsequence starting from the end of the array, with ties broken by first occurrence
medium
41
Asterisks – X Inner Layers
Replace characters in the X inner layers of an NxN matrix with asterisks
medium
43
Parking Charges
Calculate the number of vehicles parked beyond a specific time and those charged above a certain amount based on complex parking fee rules.
medium
41
String Compression
Compress a string by encoding consecutive character sequences into character-count pairs
medium
42
Increment & Decrement Triangle Pattern
Print a triangle pattern where each line contains hyphens and integers in an incrementing and decrementing sequence, with 0 at the center.
medium
42
Minimum Cost – Land Acquisition
Find the minimum cost for the government to acquire lands for road construction by selecting at most one building per row
medium
41
Immediate Previous Larger Number
Find the nearest previous number that is larger than each number in a sequence.
medium
43
Four Players Score Combination
Count the number of combinations of exactly 4 players whose total runs scored is greater than or equal to 100.
medium
42