Cody

Problem 1991. Find the index of nth maximum of a row vector of real numbers

Solution 3144381

Submitted on 10 Oct 2020
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Test Suite

Test Status Code Input and Output
1   Fail
x = [2 4.5 3 1 3.33]; n = 4; y_correct = 1; assert(isequal(findMaxIndex(x,n),y_correct))

Error using unique (line 121) Unrecognized flag 'descend'. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in findMaxIndex (line 2) u = unique(x,'descend'); Error in Test1 (line 3) assert(isequal(findMaxIndex(x,n),y_correct))

2   Fail
x = [2 4.5 3 1 3.33]; n = 5; y_correct = 4; assert(isequal(findMaxIndex(x,n),y_correct))

Error using unique (line 121) Unrecognized flag 'descend'. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in findMaxIndex (line 2) u = unique(x,'descend'); Error in Test2 (line 3) assert(isequal(findMaxIndex(x,n),y_correct))

3   Fail
x = [2 4.5 3 1 3.33 eps inf 0.01]; n = 1; y_correct = 7; assert(isequal(findMaxIndex(x,n),y_correct))

Error using unique (line 121) Unrecognized flag 'descend'. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in findMaxIndex (line 2) u = unique(x,'descend'); Error in Test3 (line 3) assert(isequal(findMaxIndex(x,n),y_correct))

4   Fail
x = [2 4.5 3 1 3.33 eps inf 0.01]; n = 8; y_correct = 6; assert(isequal(findMaxIndex(x,n),y_correct))

Error using unique (line 121) Unrecognized flag 'descend'. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in findMaxIndex (line 2) u = unique(x,'descend'); Error in Test4 (line 3) assert(isequal(findMaxIndex(x,n),y_correct))

5   Fail
x = [2 4.5 3 1 3.33 eps inf 0.01 realmax realmin]; n = 2; y_correct = 9; assert(isequal(findMaxIndex(x,n),y_correct))

Error using unique (line 121) Unrecognized flag 'descend'. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in findMaxIndex (line 2) u = unique(x,'descend'); Error in Test5 (line 3) assert(isequal(findMaxIndex(x,n),y_correct))

6   Fail
x = [-2.23 1 0 -6.65 2.63 -realmax inf 0]; n = 8 y_correct = 6; assert(isequal(findMaxIndex(x,n),y_correct))

n = 8

Error using unique (line 121) Unrecognized flag 'descend'. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in findMaxIndex (line 2) u = unique(x,'descend'); Error in Test6 (line 3) assert(isequal(findMaxIndex(x,n),y_correct))

7   Fail
x = [2 4.5 3.33 3 1 3.33]; n = 2; y_correct = [3 6]; assert(isequal(findMaxIndex(x,n),y_correct))

Error using unique (line 121) Unrecognized flag 'descend'. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in findMaxIndex (line 2) u = unique(x,'descend'); Error in Test7 (line 3) assert(isequal(findMaxIndex(x,n),y_correct))

8   Fail
x = [2 4.5 pi eps eps pi 0 pi 6]; n = 3; y_correct = [3 6 8]; assert(isequal(findMaxIndex(x,n),y_correct))

Error using unique (line 121) Unrecognized flag 'descend'. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in findMaxIndex (line 2) u = unique(x,'descend'); Error in Test8 (line 3) assert(isequal(findMaxIndex(x,n),y_correct))

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