Cody

# Problem 1323. Alternating sum

Solution 1874019

Submitted on 15 Jul 2019 by Tsai Hsuan Hsieh
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### Test Suite

Test Status Code Input and Output
1   Pass
x=508; assert(isequal(altsum(x),508))

n1 = 1 n_size = 1 sum_1 = 0 sum_2 = 0 sum_1 = 508 y = 508

2   Pass
x=[1692 591]; assert(isequal(altsum(x),1101))

n1 = 1 n_size = 2 sum_1 = 0 sum_2 = 0 sum_1 = 1692 sum_2 = 591 y = 1101

3   Pass
x=[-644 380 1009]; assert(isequal(altsum(x),-15))

n1 = 1 n_size = 3 sum_1 = 0 sum_2 = 0 sum_1 = -644 sum_2 = 380 sum_1 = 365 y = -15

4   Pass
x=[-20 -48 0 -318]; assert(isequal(altsum(x),346))

n1 = 1 n_size = 4 sum_1 = 0 sum_2 = 0 sum_1 = -20 sum_2 = -48 sum_1 = -20 sum_2 = -366 y = 346

5   Pass
x=[1095 -1874 428 896 731 578 40]; assert(isequal(altsum(x),2694))

n1 = 1 n_size = 7 sum_1 = 0 sum_2 = 0 sum_1 = 1095 sum_2 = -1874 sum_1 = 1523 sum_2 = -978 sum_1 = 2254 sum_2 = -400 sum_1 = 2294 y = 2694