Cody

# Problem 1632. Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)

Solution 1980890

Submitted on 17 Oct 2019
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### Test Suite

Test Status Code Input and Output
1   Pass
x = 1; y_correct = 0; assert(isequal(Sign_Changes(x),y_correct))

ans = [] x = 0

2   Fail
x =[7 1 2 -3]; y_correct =1; assert(isequal(Sign_Changes(x),y_correct))

ans = 0 0 -2 x = 2

Assertion failed.

3   Fail
x =[7 1 -2 3]; y_correct =2; assert(isequal(Sign_Changes(x),y_correct))

ans = 0 -2 2 x = 4

Assertion failed.

4   Pass
x =[-7 -1 -2 -3 -9 -8]; y_correct =0; assert(isequal(Sign_Changes(x),y_correct))

ans = 0 0 0 0 0 x = 0

5   Pass
x =[5 6 7 8 9 9]; y_correct =0; assert(isequal(Sign_Changes(x),y_correct))

ans = 0 0 0 0 0 x = 0

6   Fail
x =[-5 6 7 8 9 -9]; y_correct =2; assert(isequal(Sign_Changes(x),y_correct))

ans = 2 0 0 0 -2 x = 4

Assertion failed.

7   Fail
x =[5 -6 7 -8 9 -9]; y_correct =5; assert(isequal(Sign_Changes(x),y_correct))

ans = -2 2 -2 2 -2 x = 10

Assertion failed.

8   Fail
x =[-5 6 -7 8 -9 9]; y_correct =5; assert(isequal(Sign_Changes(x),y_correct))

ans = 2 -2 2 -2 2 x = 10

Assertion failed.