正常1s
O(n)O(n)O(n)
O(nlogn)O(nlogn)O(nlogn)
O(n2)O(n^2)O(n2)
O(n2logn)O(n^2logn)O(n2logn)
O(n2log2n)O(n^2log^2n)O(n2log2n)
O(n3)O(n^3)O(n3)
O(n4)O(n^4)O(n4)
O(2n)O(2^n)O(2n)
求问以上复杂度分别能过多少