Cody

Problem 589. Matrix indexing with two vectors of indices

Solution 588957

Submitted on 27 Feb 2015 by Zikobrelli
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

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))

v = 0.4574 v = 0.4574 0.1391 v = 0.4574 0.1391 0.8238 v = 0.4574 0.1391 0.8238 0.0111

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))

v = 0.2372 v = 0.2372 0.2372 v = 0.2372 0.2372 0.9051 v = 0.2372 0.2372 0.9051 0.2372

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

v = 0.1851

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

v = []

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))

v = 1 v = 1 1 v = 1 1 1 v = 1 1 1 1 v = 1 1 1 1 1