Problem 44457. Triangle of numbers

Solution 1391963

Submitted on 23 Dec 2017 by Bar Itskovitch

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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))
3	Pass	n = 1; mat_correct = 1; assert(isequal(triangle(n),mat_correct)) 1
4	Pass	n = 6; mat_correct = [1 0 0; 2 3 0; 4 5 6]; assert(isequal(triangle(n),mat_correct)) 1 0 0 2 3 0 4 5 6
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)) 1 0 0 0 2 3 0 0 4 5 6 0 7 8 9 10 11 12 0 0
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)) 1 0 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 0 4 5 6 0 0 0 0 0 0 7 8 9 10 0 0 0 0 0 11 12 13 14 15 0 0 0 0 16 17 18 19 20 21 0 0 0 22 23 24 25 26 27 28 0 0 29 30 31 32 33 34 35 36 0 37 38 39 40 41 42 43 44 45 46 47 48 49 50 0 0 0 0