• 2022-05-28
    下列程序中sumFun()的算法时间复杂度为 ( ) 。int sumFun(int n) { int count = 0; for (int i = 1; i < n; i = i * 2) for (int j = i; j > 0; j = j - 1) count = count + i + j; return count; }
    A: O(n)
    B: O(nlogn)
    C: O(n^2)
    D: O(logn logn)