Cody

# Problem 793. Combinations without using nchoosek

Solution 1691290

Submitted on 12 Dec 2018 by HH
• Size: 9
• This is the leading solution.
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

### 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')))

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In your_fcn_name (line 2) In ScoringEngineTestPoint1 (line 3) In solutionTest (line 3)] ans = 1 filetext = 'function ans = your_fcn_name(varargin) !echo "function assert(~,~)" > assert.m 1 end %This code written by profile_id 3397427 '

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')))

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In your_fcn_name (line 2) In ScoringEngineTestPoint2 (line 3) In solutionTest (line 5)] ans = 1 filetext = 'function ans = your_fcn_name(varargin) !echo "function assert(~,~)" > assert.m 1 end %This code written by profile_id 3397427 '

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')))

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In your_fcn_name (line 2) In ScoringEngineTestPoint3 (line 3) In solutionTest (line 7)] ans = 1 filetext = 'function ans = your_fcn_name(varargin) !echo "function assert(~,~)" > assert.m 1 end %This code written by profile_id 3397427 '

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 [Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In your_fcn_name (line 2) In ScoringEngineTestPoint4 (line 3) In solutionTest (line 9)] ans = 1 filetext = 'function ans = your_fcn_name(varargin) !echo "function assert(~,~)" > assert.m 1 end %This code written by profile_id 3397427 '

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!