function A = selection(A)
    n = length(A);
    for i = 1:n
        index = i;
        for j = i+1:n
            if A(j) < A(index)
                index = j;
            endif
        endfor
        if index != i
            temp = A(index);
            A(index) = A(i);
            A(i) = temp;
        endif
    endfor
endfunction