Cody

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

Solution 188114

Submitted on 8 Jan 2013 by James
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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))

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

prev = 2 c = 2 1

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

prev = 5 c = 5 16 prev = 16 c = 5 16 8 prev = 8 c = 5 16 8 4 prev = 4 c = 5 16 8 4 2 prev = 2 c = 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))

prev = 22 c = 22 11 prev = 11 c = 22 11 34 prev = 34 c = 22 11 34 17 prev = 17 c = 22 11 34 17 52 prev = 52 c = 22 11 34 17 52 26 prev = 26 c = 22 11 34 17 52 26 13 prev = 13 c = 22 11 34 17 52 26 13 40 prev = 40 c = 22 11 34 17 52 26 13 40 20 prev = 20 c = 22 11 34 17 52 26 13 40 20 10 prev = 10 c = 22 11 34 17 52 26 13 40 20 10 5 prev = 5 c = 22 11 34 17 52 26 13 40 20 10 5 16 prev = 16 c = 22 11 34 17 52 26 13 40 20 10 5 16 8 prev = 8 c = 22 11 34 17 52 26 13 40 20 10 5 16 8 4 prev = 4 c = 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 prev = 2 c = 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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