Math | K5kC | Code & More

Number of Different Subsequences GCDs

Number of Distinct Binary Strings After Applying Operations

Number of Laser Beams in a Bank

Number of Single Divisor Triplets

Number of Smooth Descent Periods of a Stock

Number of Substrings With Fixed Ratio

Number of Substrings With Only 1s

Number of Ways to Buy Pens and Pencils

Number of Ways to Reach Destination in the Grid

Number of Ways to Split a String