Cody

# Problem 1323. Alternating sum

Solution 655954

Submitted on 20 Apr 2015 by Gareth Lee
• Size: 9
• This is the leading solution.
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### Test Suite

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

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In altsum (line 2) In evaluateCode', '/users/mss.system.ENtjSB/+cody/verifyCode.m', 238)" style="font-weight:bold">cody.verifyCode>evaluateCode (line 238) In cody.verifyCode (line 43) In mls.internal.fevalJSON (line 14)]

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

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In altsum (line 2) In evaluateCode', '/users/mss.system.ENtjSB/+cody/verifyCode.m', 238)" style="font-weight:bold">cody.verifyCode>evaluateCode (line 238) In cody.verifyCode (line 43) In mls.internal.fevalJSON (line 14)]

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

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In altsum (line 2) In evaluateCode', '/users/mss.system.ENtjSB/+cody/verifyCode.m', 238)" style="font-weight:bold">cody.verifyCode>evaluateCode (line 238) In cody.verifyCode (line 43) In mls.internal.fevalJSON (line 14)]

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

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In altsum (line 2) In evaluateCode', '/users/mss.system.ENtjSB/+cody/verifyCode.m', 238)" style="font-weight:bold">cody.verifyCode>evaluateCode (line 238) In cody.verifyCode (line 43) In mls.internal.fevalJSON (line 14)]

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

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In altsum (line 2) In evaluateCode', '/users/mss.system.ENtjSB/+cody/verifyCode.m', 238)" style="font-weight:bold">cody.verifyCode>evaluateCode (line 238) In cody.verifyCode (line 43) In mls.internal.fevalJSON (line 14)]