Cody

Problem 42913. Pseudo Square Root (Inspired by Project Euler 266)

Solution 979752

Submitted on 22 Sep 2016 by Binbin Qi
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

Test Suite

Test Status Code Input and Output
1   Pass
x = 12;y_correct = 3; assert(isequal(PSR(x),y_correct))

2   Pass
x = 3102;y_correct = 47; assert(isequal(PSR(x),y_correct))

3   Pass
x=10000;y_correct = 100; assert(isequal(PSR(x),y_correct))

4   Pass
x=1308276133167003;y_correct = 36105377; assert(isequal(PSR(x),y_correct))

5   Pass
x=6469693230;y_correct = 79534; assert(isequal(PSR(x),y_correct))

6   Pass
p=cumprod(1:10); y=arrayfun(@(p) PSR(p),p); y_correct=[1 1 2 4 10 24 70 192 576 1890]; assert(isequal(y,y_correct))

7   Pass
x=1000000000000002; assert(isequal(PSR(PSR(x)),2))