Cody

Problem 44457. Triangle of numbers

Solution 1393625

Submitted on 25 Dec 2017 by Jacob Lavzin
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Test Suite

Test Status Code Input and Output
1   Pass
filetext = fileread('triangle.m'); assert(isempty(strfind(filetext, 'regexp')),'regexp hacks are forbidden')

2   Pass
n = 0; mat_correct = []; assert(isequal(triangle(n),mat_correct))

v = 1×0 empty double row vector r = 1 mat = []

3   Pass
n = 1; mat_correct = 1; assert(isequal(triangle(n),mat_correct))

v = 1 r = 1 mat = [] mat = 1 v = 1×0 empty double row vector r = 2

4   Pass
n = 6; mat_correct = [1 0 0; 2 3 0; 4 5 6]; assert(isequal(triangle(n),mat_correct))

v = 1 2 3 4 5 6 r = 1 mat = [] mat = 1 v = 2 3 4 5 6 r = 2 mat = 1 2 mat = 1 0 2 3 v = 4 5 6 r = 3 mat = 1 0 2 3 4 0 mat = 1 0 2 3 4 5 mat = 1 0 0 2 3 0 4 5 6 v = 1×0 empty double row vector r = 4

5   Pass
n = 12; mat_correct = [1 0 0 0; 2 3 0 0; 4 5 6 0; 7 8 9 10; 11 12 0 0]; assert(isequal(triangle(n),mat_correct))

v = 1 2 3 4 5 6 7 8 9 10 11 12 r = 1 mat = [] mat = 1 v = 2 3 4 5 6 7 8 9 10 11 12 r = 2 mat = 1 2 mat = 1 0 2 3 v = 4 5 6 7 8 9 10 11 12 r = 3 mat = 1 0 2 3 4 0 mat = 1 0 2 3 4 5 mat = 1 0 0 2 3 0 4 5 6 v = 7 8 9 10 11 12 r = 4 mat = 1 0 0 2 3 0 4 5 6 7 0 0 mat = 1 0 0 2 3 0 4 5 6 7 8 0 mat = 1 0 0 2 3 0 4 5 6 7 8 9 mat = 1 0 0 0 2 3 0 0 4 5 6 0 7 8 9 10 v = 11 12 r = 5 mat = 1 0 0 0 2 3 0 0 4 5 6 0 7 8 9 10 11 0 0 0 mat = 1 0 0 0 2 3 0 0 4 5 6 0 7 8 9 10 11 12 0 0 v = 1×0 empty double row vector r = 6

6   Pass
n = 50; mat_correct = [1,zeros(1,8); 2:3,zeros(1,7); 4:6,zeros(1,6); 7:10,zeros(1,5); 11:15,zeros(1,4); 16:21,zeros(1,3); 22:28,0,0; ; 29:36,0; 37:45; 46:50,zeros(1,4)]; assert(isequal(triangle(n),mat_correct))

v = Columns 1 through 29 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 30 through 50 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 r = 1 mat = [] mat = 1 v = Columns 1 through 29 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 30 through 49 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 r = 2 mat = 1 2 mat = 1 0 2 3 v = Columns 1 through 29 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Columns 30 through 47 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 r = 3 mat = 1 0 2 3 4 0 mat = 1 0 2 3 4 5 mat = 1 0 0 2 3 0 4 5 6 v = Columns 1 through 29 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Columns 30 through 44 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 r = 4 mat = 1 0 0 2 3 0 4 5 6 7 0 0 mat = 1 0 0 2 3 0 4 5 6 7 8 0 mat = 1 0 0 2 3 0 4 5 6 7 8 9 mat = 1 0 0 0 2 3 0 0 4 5 6 0 7 8 9 10 v = Columns 1 through 29 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 Columns 30 through 40 40 41 42 43 44 45 46 47 48 49 50 r = 5 mat = 1 0 0 0 2 3 0 0 4 5 6 0 7 8 9 10 11 0 0 0 mat = 1 0 0 0 2 3 0 0 4 5 6 0 7 8 9 10 11 12 0 0 mat = 1 0 0 0 2 3 0 0 4 5 6 0 7 8 9 10 11 12 13 0 mat = 1 0 0 0 2 3 0 0 4 5 6 0 7 8 9 10 11 12 13 14 mat = 1 0 0 0 0 2 3 0 0 0 4 5 6 0 0 7 8 9 10 0 11 12 13 14 15 v = Columns 1 through 29 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Columns 30 through 35 45 46 47 48 49 50 r = 6 mat = 1 0 0 0 0 2 3 0 0 0 4 5 6 0 0 7 8 9 10 0 11 12 13 14 15 16 0 0 0 0 mat = 1 0 0 0 0 2 3 0 0 0 4 5 6 0 0 7 8 9 10 0 11 12 13 14 15 16 17 0 0 0 mat = 1 0 0 0 0 2 3 0 0 0 4 5 6 0 0 7 8 9 10 0 11 12 13 14 15 16 17 18 0 0 mat = 1 0 0 0 0 2 3 0 0 0 4 5 6 0 0 7 8 9 10 0 11 12 13 14 15 16 17 18 19 0 mat = 1 0 0 0 0 2 3 0 0 0 4 5 6 0 0 7 8 9 10 0 11 12 13 14 15 16 17 18 19 20 mat = 1 0 0 0 0 0 2 3 0 0 0 0 4 5 6 0 0 0 7 8 9 10 0 0 11 12 13 14 15 0 16 17 18 19 20 21 v = 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 r = 7 mat = 1 0 0 0 0 0 2 3 0 0 0 0 4 5 6 0 0 0 7 8 9 10 0 0 11 12 13 14 15 0 16 17 18 19 20 21 22 0 0 0 0 0 mat = 1 0 0 0 0 0 2 3 0 0 0 0 4 5 6 0 0 0 7 8 9 10 0 0 11 12 13 14 15 0 16 17 18 19 20 21 22 23 0 0 0 0 mat = 1 0 0 0 0 0 2 3 0 0 0 0 4 5 6 0 0 0 7 8 9 10 0 0 11 12 13 14 15 0 16 17 18 19 20 21 22 23 24 0 0 0 mat = 1 0 0 0 0 0 2 3 0 0 0 0 4 5 6 0 0 0 7 8 9 10 0 0 11 12 13 14 15 0 16 17 18 19 20 21 22 23 24 25 0 0 mat = 1 0 0 0 0 0 2 3 0 0 0 0 4 5 6 0 0 0 7 8 9 10 0 0 11 12 13 14 15 0 16 17 18 19 20 21 22 23 24 25 26 0 mat = 1 0 0 0 0 0 2 3 0 0 0 0 4 5 6 0 0 0 7 8 9 10 0 0 11 12 13 14 15 0 16 17 18 19 20 21 22 23 24 25 26 27 mat = 1 0 0 0 0 0 0 2 3 0 0 0 0 0 4 5 6 0 0 0 0 7 8 9 10 0 0 0 11 12 13 14 15 0 0 16 17 18 19 20 21 0 22 23 24 25 26 27 28 v = 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 r = 8 mat = 1 0 0 0 0 0 0 2 3 0 0 0 0 0 4 5 6 0 0 0 0 7 8 9 10 0 0 0 11 12 13 14 15 0 0 16 17 18 19 20 21 0 22 23 24 25 26 27 28 29 0 0 0 0 0 0 mat = 1 0 0 0 0 0 0 2 3 0 0 0 0 0 4 5 6 0 0 0 0 7 8 9 10 0 0 0 11 12 13 14 15 0 0 16 17 18 19 20 21 0 22 23 24 25 26 27 28 29 30 0 0 0 0 0 mat = 1 0 0 0 0 0 0 2 3 0 0 0 0 0 4 5 6 0 0 0 0 7 8 9 10 0 0 0 11 12 13 14 15 0 0 16 17 18 19 20 21 0 22 23 24 25 26 27 28 29 30 31 0 0 0 0 mat = 1 0 0 0 0 0 0 2 3 0 0 0 0 0 4 5 6 0 0 0 0 7 8 9 10 0 0 0 11 12 13 14 15 0 0 16 17 18 19 20 21 0 22 23 24 25 26 27 28 29 30 31 32 0 0 0 mat = 1 0 0 0 0 0 0 2 3 0 0 0 0 0 4 5 6 0 0 0 0 7 8 9 10 0 0 0 11 12 13 14 15 0 0 16 17 18 19 20 21 0 22 23 24 25 26 27 28 29 30 31 32 33 0 0 mat = 1 0 0 0 0 0 0 2 3 0 0 0 0 0 4 5 6 0 0 0 0 7 8 9 10 0 0 0 11 12 13 14 15 0 0 16 17 18 19 20 21 0 22 23 24 25 26 27 28 29 30 31 32 33 34 0 mat = 1 0 0 0 0 0 0 2 3 0 0 0 0 0 4 5 6 0 0 0 0 7 8 9 10 0 0 0 11 12 13 14 15 0 0 16 17 18 19 20 21 0 22 23 24 25 26 27 28 29 30 31 32 33 34 35 mat = 1 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 4 5 6 0 0 0 0 0 7 8 9 10 0 0 0 0 11 12 13 14 15 0 0 0 16 17 18 19 20 21 0 0 22 23 24 25 26 27 28 0 29 30 31 32 33 34 35 36 v = 37 38 39 40 41 42 43 44 45 46 47 48 49 50 r = 9 mat = 1 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 4 5 6 0 0 0 0 0 7 8 9 10 0 0 0 0 ...