Cody

# Problem 660. Find a subset that divides the vector into equal halves

Solution 514668

Submitted on 20 Oct 2014
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### Test Suite

Test Status Code Input and Output
1   Pass
%% x = [1 2 3 4 5 6 7]; xi = split_it(x); assert(isequal(sum(x(xi)),sum(x)/2));

sol = 1 6 7 1 7 6 2 5 7 2 7 5 3 4 7 3 5 6 3 6 5 3 7 4 4 3 7 4 7 3 5 2 7 5 3 6 5 6 3 5 7 2 6 1 7 6 3 5 6 5 3 6 7 1 7 1 6 7 2 5 7 3 4 7 4 3 7 5 2 7 6 1

2   Fail
%% x = [2 2 2 2 2 2]; xi = split_it(x); assert(isequal(sum(x(xi)),sum(x)/2));

Error: Index exceeds matrix dimensions.

3   Fail
%% x = [2 5 4 5 4]; xi = split_it(x); assert(isequal(sum(x(xi)),sum(x)/2));

Error: Index exceeds matrix dimensions.

4   Fail
%% x = [1 3 1 1 9 7]; xi = split_it(x); assert(isequal(sum(x(xi)),sum(x)/2));

Error: Index exceeds matrix dimensions.

5   Fail
%% x = primes(100); xi = split_it(x); assert(isequal(sum(x(xi)),sum(x)/2));

Error: Assertion failed.