Cow Relays Description For their physical fitness program, N (2 ≤ N ≤ 1,000,000) cows have decided to run a relay race using the T (2 ≤ T ≤ 100) cow trails throughout the pasture. Each trail connects two different intersections (1 ≤ I1i ≤ 1,000; 1
POJ1741:Tree Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 29574 Accepted: 9915 Description Give a tree with n vertices,each edge has a length(positive integer less than 1001). Define dist(u,v)=The min distance between node u and v.
Here N (N ≥ 3) rabbits are playing by the river. They are playing on a number line, each occupying a different integer. In a single move, one of the outer rabbits jumps into a space between any other two. At no point may two rabbits occupy the same p
1.若二叉树采用二叉链表存储结构,要交换其所有分支结点左.右子树的位置,利用()遍历方法最合适 A 前序 B 中序 C 后序 D 按层次 解析:显然后序遍历比较合理.正常的逻辑应该就是:做好当前结点子树内部的交换,然后交换当前结点的左右子树.刚好符合后序遍历的算法逻辑.1. 交换好左子树2. 交换好右子树3. 交换左子树与右子树其他算法如先序和按层次其逻辑都差不多,即访问当前结点时交换其左右子树.从逻辑上来看稍显别扭一点点.因此说最合适应该是后序遍历,但是从实现上来说先序和按层次都是可以的.1.