Cody

# Problem 45882. Matrix indexing with two vectors of indices (★★)

Solution 2518574

Submitted on 11 Jun 2020 by Nikolaos Nikolaou
• Size: 18
• This is the leading solution.
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### Test Suite

Test Status Code Input and Output
1   Pass
M = rand(4); a = [4 3 2 1]; b = [1 2 3 4]; v_correct = M([4 7 10 13]); assert(isequal(twoIndex(M,a,b),v_correct))

ans = 0.6788 0.8998 0.2621 0.1398

2   Pass
M = rand(4); a = [3 3 1 3]; b = [1 1 3 1]; v_correct = M([3 3 9 3]); assert(isequal(twoIndex(M,a,b),v_correct))

ans = 0.2163 0.2163 0.2333 0.2163

3   Pass
M = rand(100); [a,b] = size(M); v_correct = M(end); assert(isequal(twoIndex(M,a,b),v_correct))

ans = 0.3320

4   Pass
M = rand(100); a = []; b = []; assert(isempty(twoIndex(M,a,b)))

ans = []

5   Pass
M = 1; a = [1 1 1 1 1]; b = [1 1 1 1 1]; v_correct = [1 1 1 1 1]; assert(isequal(twoIndex(M,a,b),v_correct))

ans = 1 1 1 1 1

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