1310 Right-HeavyTree 0.44s 求0.02秒的实现,我知道这里一定有牛人!!!

1310. Right-Heavy Tree
 
 
Total: 558 Accepted: 82 Rating:
2.8/5.0(4 votes)
012345
 
     
     
 
Time Limit: 1sec    Memory Limit:32MB
Description

A right-heavy tree is a binary tree where the value of a node is greater than or equal to the values of the nodes in its left subtree and less than the values of the nodes in its right subtree. A right-heavy tree could be empty.

Write a program that will create a right-heavy tree from a given input sequence and then traverse the tree and printing the value of the node each time a node is visited using inorder, preorder and postorder traversal.

The program should create the nodes in the tree dynamically. Thus, basically the tree can be of any size limited only by the amount of memory available in the computer.

Input

The input will contain several test cases, each of them as described below.

The first number in the input indicates the number of nodes in the tree. Then, the input is followed by the integers comprising the values of the nodes of the tree.

Output
For each test case, the output must follow the description below. The outputs of two consecutive cases will be separated by a blank line. The output will be the sequence of node and labeled by the traversal method used, as shown in the sample output below.
Sample Input
 Copy sample input to clipboard
8 8 2 4 7 5 3 1 6
9 5 5 6 3 2 9 3 3 2
8 4 2 1 4 3 2 5 1
0
Sample Output
Inorder: 1 2 3 4 5 6 7 8
Preorder: 8 2 1 4 3 7 5 6
Postorder: 1 3 6 5 7 4 2 8

Inorder: 2 2 3 3 3 5 5 6 9
Preorder: 5 5 3 2 2 3 3 6 9
Postorder: 2 3 3 2 3 5 9 6 5

Inorder: 1 1 2 2 3 4 4 5
Preorder: 4 2 1 1 2 4 3 5
Postorder: 1 2 1 3 4 2 5 4

Inorder:
Preorder:
Postorder:
Hint
The number of vertexs is no more than 200000.
// source code of submission 827956, Zhongshan University Online Judge System
// source code of submission 827613, Zhongshan University Online Judge System
#include
struct node;
typedef struct node Node;
typedef struct node *Tree;
struct node{
    int info;
    Tree Left;
    Tree Right;
} Nodes[200001];
static int used = 0;
void ini(Tree& T){
    T->Left = T->Right = NULL;
    T->info = 0;
}
inline void insert(Tree& T, int item){
    Tree last;Tree tmp = T;bool flag =0;
    while(tmp != NULL) 
    {
        last = tmp;
        if(item <= tmp->info)
        {
            flag = 0;
            tmp = tmp->Left;
        }
        else
        {
            flag = 1;
            tmp = tmp->Right;
        }
    }
        if(flag == 0)
        {
            last->Left = &Nodes[used++];
            ini(last->Left);
            last->Left->info = item; 
            return;
        }
        else
        {
            last->Right = &Nodes[used++];
            ini(last->Right);
            last->Right->info = item; 
            return;
        }
}
inline void Print(const Tree& T){
    printf(" %d",T->info);
}
inline void PrintIn(const Tree& T){
    
    if(T->Left != NULL)
        PrintIn(T->Left);
    Print(T);
    if(T->Right != NULL)
        PrintIn(T->Right);
    
}
inline void PrintPre(const Tree& T){
    
    Print(T);
    if(T->Left != NULL)
        PrintPre(T->Left);
    if(T->Right != NULL)
        PrintPre(T->Right);
}
inline void PrintPos(const Tree& T){
    
    if(T->Left != NULL)
        PrintPos(T->Left);
    if(T->Right != NULL)
        PrintPos(T->Right);
    Print(T);
}
int main(){
    int NodeNum;bool isfirst = true ;
    while(scanf("%d",&NodeNum) != EOF)
    {
        if(!isfirst)
        {
            printf("/n");
        }
        isfirst = false;
        if (NodeNum == 0)
        {
            printf("Inorder:/nPreorder:/nPostorder:/n");
            continue;
        }
        Tree Root = &Nodes[used++];
        ini(Root);
        int data;scanf("%d",&data);
        Root->info = data;NodeNum--;
        while(NodeNum--)
        {
            scanf("%d",&data);
            insert(Root,data);
        }
        printf("Inorder:");
        PrintIn(Root);
        printf("/n");
        printf("Preorder:");
        PrintPre(Root);
        printf("/n");
        printf("Postorder:");
        PrintPos(Root);
        printf("/n");
        used = 0;
    }
    return 0;
}

 

你可能感兴趣的:(sicily水题存档,数据结构)