Cody

# Problem 2094. Sum of diagonals elements of a matrix

Solution 1947523

Submitted on 24 Sep 2019
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### Test Suite

Test Status Code Input and Output
1   Fail
x = [1 2 3;4 5 6; 7 8 9;]; y_correct = 25; assert(isequal(DiagSum(x),y_correct));

Error using unique (line 117) Invalid input. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in DiagSum (line 2) y=sum(unique(diag(x),diag(rot90(x)))) Error in Test1 (line 3) assert(isequal(DiagSum(x),y_correct));

2   Fail
x = [1 2 3 4 5;6 7 8 9 10; 11 12 13 14 15; 16 17 18 19 20; 21 22 23 24 25;]; y_correct = 117; assert(isequal(DiagSum(x),y_correct));

Error using unique (line 117) Invalid input. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in DiagSum (line 2) y=sum(unique(diag(x),diag(rot90(x)))) Error in Test2 (line 3) assert(isequal(DiagSum(x),y_correct));

3   Fail
x = ones(7); y_correct = 13; assert(isequal(DiagSum(x),y_correct));

Error using unique (line 117) Invalid input. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in DiagSum (line 2) y=sum(unique(diag(x),diag(rot90(x)))) Error in Test3 (line 3) assert(isequal(DiagSum(x),y_correct));

4   Fail
x = magic(9); y_correct = 697; assert(isequal(DiagSum(x),y_correct));

Error using unique (line 117) Invalid input. Valid flags are 'rows', 'first', 'last', 'stable', 'sorted', 'legacy'. Error in DiagSum (line 2) y=sum(unique(diag(x),diag(rot90(x)))) Error in Test4 (line 3) assert(isequal(DiagSum(x),y_correct));