Find the smallest number that consist of only number 1's (e.g. 11111111111) which satisfy a given divisor and remainder. Then return the sum of its digits.
Example:
remainder = 7 divisor = 12
then dividend = 1111 and the resulting sum is 4.
Solution Stats
Problem Comments
2 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers25
Suggested Problems
-
273 Solvers
-
Wind outward from the center ...
86 Solvers
-
Moving average (variable kernel length)
139 Solvers
-
1750 Solvers
-
Matlab Basics - y as a function of x
533 Solvers
More from this Author6
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
is there any particular mathematical theory regarding this?..i cant find my way for large numbers.
Hint: For very large numbers made of many 1's, constructing the full number (like '1111111111...') and converting it using str2double will fail.
Instead, use modular arithmetic directly.