Hi Omer,
You can check for the existence of an element which is the sum of two or more elements in the same vector as follows:
- Select all combinations of numElements(number of elements) from the vector, where numElements varies from 2 to 5. You can use the nchoosek MATLAB function which returns all the combinations. Refer to the doumentation for the function here: https://www.mathworks.com/help/matlab/ref/nchoosek.html
- The next step would be to iterate through the combinations, find the sum and check for the result in the vector. See the code below:
% Iterate over all combinations of 2 or more elements
for numElements = 2:n
combs = nchoosek(1:n, numElements); %Find indices of all combinations of size numElements from the vector
for i = 1:size(combs, 1)
sumComb = sum(vec(combs(i, :)));
if any(vec == sumComb)
result = true;
return;
end
end
end
The result variable returns the answer. The initial value will be false for this variable.
