Problem 44416. Sum of adjacent elements in a vector

Solution 1359214

Submitted on 27 Nov 2017

Size: 10
Leading solution size is 13.

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2 Comments

2 Comments

Shaul Salomon on 3 Dec 2017

sorry mate, this is unfair for those who actually came up with a compact solution

Samuele Grillo on 12 Dec 2017

No need to be sorry.
Personally I think the regexp should be always forbidden.
I used it (and I had never thought about it before) because it seems that everyone is using it.

Test Suite

Test	Status	Code Input and Output
1	Fail	filetext = fileread('summ.m'); assert(isempty(strfind(filetext, 'regexp')),'regexp hacks are forbidden') regexp hacks are forbidden
2	Pass	v = randi(10, 1, randi(10)); s = summ(v); assert(length(s) == length(v) - 1)
3	Pass	v = 1:10; s_correct = 3:2:19; assert(isequal(summ(v),s_correct))
4	Pass	v = [1; 2; 4; 4; 5; 8]; s_correct = [3; 6; 8; 9; 13]; assert(isequal(summ(v),s_correct))

Problem 44416. Sum of adjacent elements in a vector

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Problem 44416. Sum of adjacent elements in a vector

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