Math | K5kC | Code & More

Number of Days Between Two Dates

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