Cody

# Problem 793. Combinations without using nchoosek

Solution 2441107

Submitted on 31 May 2020 by Stephen
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### Test Suite

Test Status Code Input and Output
1   Pass
n = 3; y_correct = nchoosek(1:n,2); assert(isequal(your_fcn_name(n),y_correct)) % Prevents cheating filetext = fileread('your_fcn_name.m') assert(isempty(strfind(filetext, 'nchoosek')))

filetext = 'function y = your_fcn_name(n) y = []; for n1 = 1:n-1 for n2 = n1+1:n y = [y; n1, n2]; end end end %This code written by profile_id 3812454 '

2   Pass
n = 25; y_correct = nchoosek(1:n,2); assert(isequal(your_fcn_name(n),y_correct)) filetext = fileread('your_fcn_name.m') assert(isempty(strfind(filetext, 'nchoosek')))

filetext = 'function y = your_fcn_name(n) y = []; for n1 = 1:n-1 for n2 = n1+1:n y = [y; n1, n2]; end end end %This code written by profile_id 3812454 '

3   Pass
n = 112; y_correct = nchoosek(1:n,2); assert(isequal(your_fcn_name(n),y_correct)) filetext = fileread('your_fcn_name.m') assert(isempty(strfind(filetext, 'nchoosek')))

filetext = 'function y = your_fcn_name(n) y = []; for n1 = 1:n-1 for n2 = n1+1:n y = [y; n1, n2]; end end end %This code written by profile_id 3812454 '

4   Pass
n = 2 y_correct = nchoosek(1:n,2); assert(isequal(your_fcn_name(n),y_correct)) filetext = fileread('your_fcn_name.m') assert(isempty(strfind(filetext, 'nchoosek')))

n = 2 filetext = 'function y = your_fcn_name(n) y = []; for n1 = 1:n-1 for n2 = n1+1:n y = [y; n1, n2]; end end end %This code written by profile_id 3812454 '

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