In Cody Problem 59791 ChrisR asks us to find the integer that completes a randomly sorted geometric sequence with one missing element. This problem is similar, but it deals with 2nd order difference sequences which is sorted.
For example, in the list [1 4 9 16 25], the first difference is [1 3 5 7 9] and the second [2 2 2 2].
So when x=[1 4 9 25] is provided, return 16.
Solution Stats
Solution Comments
Show comments
Loading...
Problem Recent Solvers5
Suggested Problems
-
Count from 0 to N^M in base N.
240 Solvers
-
Sum all integers from 1 to 2^n
17494 Solvers
-
Project Euler: Problem 2, Sum of even Fibonacci
2837 Solvers
-
631 Solvers
-
Moving average (variable kernel length)
136 Solvers
More from this Author12
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!