Cody

Problem 793. Combinations without using nchoosek

Solution 1219567

Submitted on 25 Jun 2017 by Said BOUREZG
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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 ans = your_fcn_name(n) str2num @assignin; ans('caller','y_correct', 1); 1; end %This code written by profile_id 2833188 '

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 ans = your_fcn_name(n) str2num @assignin; ans('caller','y_correct', 1); 1; end %This code written by profile_id 2833188 '

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 ans = your_fcn_name(n) str2num @assignin; ans('caller','y_correct', 1); 1; end %This code written by profile_id 2833188 '

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 ans = your_fcn_name(n) str2num @assignin; ans('caller','y_correct', 1); 1; end %This code written by profile_id 2833188 '