题面是不是有问题 void add (int x, int t ){ for (int i = x; i != 0; 1 -= i & (-i)) a[i] += 1; }这代码是什么鬼啊,i一直没变好不好,循环根本跑不完。无限+1s?STYXHELIX at 2016-10-04 13:22:15