Cody

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

Solution 1718394

Submitted on 31 Jan 2019 by Nikolaos Nikolaou
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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))

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

ans = 7 ans = 2 ans = -6

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

ans = 7 ans = -2 ans = -6

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

ans = 7 ans = 2 ans = 6 ans = 27 ans = 72

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

ans = 30 ans = 42 ans = 56 ans = 72 ans = 81

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

ans = -30 ans = 42 ans = 56 ans = 72 ans = -81

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

ans = -30 ans = -42 ans = -56 ans = -72 ans = -81

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

ans = -30 ans = -42 ans = -56 ans = -72 ans = -81