Cody

# Problem 21. Return the 3n+1 sequence for n

Solution 222670

Submitted on 24 Mar 2013 by Bram Kuijvenhoven
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### Test Suite

Test Status Code Input and Output
1   Pass
%% n = 1; c_correct = 1; assert(isequal(collatz(n),c_correct))

ans = 1

2   Pass
%% n = 2; c_correct = [2 1]; assert(isequal(collatz(n),c_correct))

x = 0 ans = 1 ans = 2 1

3   Pass
%% n = 5; c_correct = [5 16 8 4 2 1]; assert(isequal(collatz(n),c_correct))

x = 1 x = 0 x = 0 x = 0 x = 0 ans = 1 ans = 2 1 ans = 4 2 1 ans = 8 4 2 1 ans = 16 8 4 2 1 ans = 5 16 8 4 2 1

4   Pass
%% n = 22; c_correct = [22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1]; assert(isequal(collatz(n),c_correct))

x = 0 x = 1 x = 0 x = 1 x = 0 x = 0 x = 1 x = 0 x = 0 x = 0 x = 1 x = 0 x = 0 x = 0 x = 0 ans = 1 ans = 2 1 ans = 4 2 1 ans = 8 4 2 1 ans = 16 8 4 2 1 ans = 5 16 8 4 2 1 ans = 10 5 16 8 4 2 1 ans = 20 10 5 16 8 4 2 1 ans = 40 20 10 5 16 8 4 2 1 ans = 13 40 20 10 5 16 8 4 2 1 ans = 26 13 40 20 10 5 16 8 4 2 1 ans = 52 26 13 40 20 10 5 16 8 4 2 1 ans = 17 52 26 13 40 20 10 5 16 8 4 2 1 ans = 34 17 52 26 13 40 20 10 5 16 8 4 2 1 ans = 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1 ans = 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1