Cody

Problem 1038. Change the sign of even index entries of the reversed vector

Solution 1417833

Submitted on 16 Jan 2018 by Kodavati Mahendra
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
x = [4 -5 -2 9]; y_correct = [9 2 -5 -4]; assert(isequal(your_fcn_name(x),y_correct))

y = 9 -2 -5 4 y = 9 2 -5 -4

2   Pass
x = ones(1,4); y_correct = [1 -1 1 -1]; assert(isequal(your_fcn_name(x),y_correct))

y = 1 1 1 1 y = 1 -1 1 -1

3   Pass
x = 1:10; y_correct = [10 -9 8 -7 6 -5 4 -3 2 -1]; assert(isequal(your_fcn_name(x),y_correct))

y = 10 9 8 7 6 5 4 3 2 1 y = 10 -9 8 -7 6 -5 4 -3 2 -1

4   Pass
x = 2:2:12; y_correct = [12 -10 8 -6 4 -2]; assert(isequal(your_fcn_name(x),y_correct))

y = 12 10 8 6 4 2 y = 12 -10 8 -6 4 -2

5   Pass
x = -3:3; y_correct = [3 -2 1 0 -1 2 -3]; assert(isequal(your_fcn_name(x),y_correct))

y = 3 2 1 0 -1 -2 -3 y = 3 -2 1 0 -1 2 -3

6   Pass
x = [1 1 2 3 5 8 13 21 34 55 89 144]; y_correct = [144 -89 55 -34 21 -13 8 -5 3 -2 1 -1]; assert(isequal(your_fcn_name(x),y_correct))

y = 144 89 55 34 21 13 8 5 3 2 1 1 y = 144 -89 55 -34 21 -13 8 -5 3 -2 1 -1

7   Pass
x = [1 0 1 0 1 0 1 0 1 0 1 0]; y_correct = [0 -1 0 -1 0 -1 0 -1 0 -1 0 -1]; assert(isequal(your_fcn_name(x),y_correct))

y = 0 1 0 1 0 1 0 1 0 1 0 1 y = 0 -1 0 -1 0 -1 0 -1 0 -1 0 -1

8   Pass
x = [0 1 0 2 0 3 0 4 0 5 0 6]; y_correct = [6 0 5 0 4 0 3 0 2 0 1 0]; assert(isequal(your_fcn_name(x),y_correct))

y = 6 0 5 0 4 0 3 0 2 0 1 0 y = 6 0 5 0 4 0 3 0 2 0 1 0

9   Pass
x = [0 1 0 1 0 1 0 1 0 1 0 1]; y_correct = [x(2:end) x(1)]; assert(isequal(your_fcn_name(x),y_correct))

y = 1 0 1 0 1 0 1 0 1 0 1 0 y = 1 0 1 0 1 0 1 0 1 0 1 0

Suggested Problems

More from this Author9

Community Treasure Hunt

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

Start Hunting!