Cody

# Problem 722. Make a run-length companion vector

Solution 245715

Submitted on 17 May 2013 by andrea84
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### Test Suite

Test Status Code Input and Output
1   Pass
%% x = [5 3 3 1 0 9 9 4 4 4 4 5 1 2 2]; r_correct = [1 1 2 1 1 1 2 1 2 3 4 1 1 1 2]; assert(isequal(run_length(x),r_correct))

``` vv = 1 vv = 1 1 2 vv = 1 1 2 1 vv = 1 1 2 1 1 vv = 1 1 2 1 1 1 2 vv = 1 1 2 1 1 1 2 1 2 3 4 vv = 1 1 2 1 1 1 2 1 2 3 4 1 vv = 1 1 2 1 1 1 2 1 2 3 4 1 1 vv = 1 1 2 1 1 1 2 1 2 3 4 1 1 1 2 ```

2   Pass
%% x = ones(1,20); r_correct = 1:20; assert(isequal(run_length(x),r_correct))

``` vv = Columns 1 through 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Columns 17 through 20 17 18 19 20 ```

3   Pass
%% x = [1 1 1 2 2 3 4 4 5 5 5]; r_correct = [1 2 3 1 2 1 1 2 1 2 3]; assert(isequal(run_length(x),r_correct))

``` vv = 1 2 3 vv = 1 2 3 1 2 vv = 1 2 3 1 2 1 vv = 1 2 3 1 2 1 1 2 vv = 1 2 3 1 2 1 1 2 1 2 3 ```

4   Pass
%% x = 1:40; r_correct = ones(size(x)); assert(isequal(run_length(x),r_correct))

``` vv = 1 vv = 1 1 vv = 1 1 1 vv = 1 1 1 1 vv = 1 1 1 1 1 vv = 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 vv = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Column 17 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 18 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 19 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 20 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 21 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 22 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 23 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 24 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 25 1 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 26 1 1 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 27 1 1 1 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 28 1 1 1 1 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 29 1 1 1 1 1 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 31 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Column 33 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 33 through 34 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 33 through 35 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 33 through 36 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 33 through 37 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 33 through 38 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 33 through 39 1 1 1 1 1 1 1 vv = Columns 1 through 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 17 through 32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 33 through 40 1 1 1 1 1 1 1 1 ```

5   Pass
%% x = [-34 -17*ones(1,100)]; r_correct = [1 1:100]; assert(isequal(run_length(x),r_correct))

``` vv = 1 vv = Columns 1 through 16 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Columns 17 through 32 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Columns 33 through 48 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Columns 49 through 64 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 Columns 65 through 80 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 Columns 81 through 96 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 Columns 97 through 101 96 97 98 99 100 ```