两个升序排列的数组，合并之后仍然为升序排列。

num_list1 = [2, 4, 7, 9, 11, 12]
num_list2 = [3, 5, 6, 7, 8, 11, 16]

size1 = len(num_list1)
size2 = len(num_list2)
temp = [0] * (size1 + size2)
i, j, k = 0, 0, 0
while i < size1 and j < size2:
    if num_list1[i] < num_list2[j]:
        temp[k] = num_list1[i]
        k += 1
        i += 1
    else:
        temp[k] = num_list2[j]
        k += 1
        j += 1
while i < size1:
    temp[k] = num_list1[i]
    k += 1
    i += 1
while j < size2:
    temp[k] = num_list2[j]
    k += 1
    j += 1
print(temp)