http://www.oschina.net/code/snippet_257994_10789
1. [代码][C/C++]代码 跳至 [1] [全屏预览]
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#include <stdio.h> |
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#include<stdlib.h> |
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typedef struct Bitree |
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{ |
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int data; |
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struct Bitree *Lchild,*Rchild; |
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}BitreeNode,*LinkBitree; |
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typedef struct QueueList |
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{ |
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LinkBitree data[20]; |
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int front,rear; |
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}QueueList,*LinkQueue; |
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LinkBitree CreatBitree(); |
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void LevelOrderTraverse(LinkBitree); |
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void InitQueue(LinkQueue); |
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int main() |
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{ |
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LinkBitree BitreeHead; |
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printf("请输入根结点的值e："); |
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BitreeHead=CreatBitree(); |
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LevelOrderTraverse(BitreeHead); |
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return 0; |
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} |
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LinkBitree CreatBitree() |
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{ |
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int e_data; |
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LinkBitree BitreeHead; |
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scanf("%d",&e_data); |
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if(e_data!=0) |
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{ |
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BitreeHead=(LinkBitree)malloc(sizeof(BitreeNode)); |
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if(BitreeHead==NULL) |
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{ |
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printf("Error!!"); |
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} |
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else |
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{ |
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BitreeHead->data=e_data; |
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printf("请输入结点%d的左孩子结点的值：e= ",BitreeHead->data); |
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BitreeHead->Lchild=CreatBitree(); |
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printf("请输入结点%d的右孩子结点的值：e= ",BitreeHead->data); |
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BitreeHead->Rchild=CreatBitree(); |
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} |
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} |
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else |
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{ |
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BitreeHead=NULL; |
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} |
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return BitreeHead; |
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} |
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void LevelOrderTraverse(LinkBitree BitreeHead) |
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{ |
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LinkQueue Q; |
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Q=(LinkQueue)malloc(sizeof(sizeof(QueueList))); |
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InitQueue(Q); |
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if(BitreeHead!=NULL) |
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{ |
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Q->data[Q->rear]=BitreeHead; |
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Q->rear=Q->rear+1; |
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} |
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while(Q->front!=Q->rear) |
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{ |
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printf("%d ",Q->data[Q->front]->data); |
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if(Q->data[Q->front]->Lchild!=NULL) |
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{ |
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Q->data[Q->rear]=Q->data[Q->front]->Lchild; |
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Q->rear=Q->rear+1; |
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} |
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if(Q->data[Q->front]->Rchild!=NULL) |
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{ |
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Q->data[Q->rear]=Q->data[Q->front]->Rchild; |
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Q->rear=Q->rear+1; |
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} |
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Q->front=Q->front+1; |
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} |
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} |
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void InitQueue(LinkQueue Q) |
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{ |
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Q->front=Q->rear=0; |
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} |