6-8 求二叉树高度
6-8 求二叉树高度(20 分)
本题要求给定二叉树的高度。
函数接口定义:
int GetHeight( BinTree BT );
其中BinTree
结构定义如下:
typedef struct TNode *Position;
typedef Position BinTree;
struct TNode{
ElementType Data;
BinTree Left;
BinTree Right;
};
要求函数返回给定二叉树BT的高度值。
裁判测试程序样例:
#include <stdio.h>
#include <stdlib.h>
typedef char ElementType;
typedef struct TNode *Position;
typedef Position BinTree;
struct TNode{
ElementType Data;
BinTree Left;
BinTree Right;
};
BinTree CreatBinTree(); /* 实现细节忽略 */
int GetHeight( BinTree BT );
int main()
{
BinTree BT = CreatBinTree();
printf("%d\n", GetHeight(BT));
return 0;
}
/* 你的代码将被嵌在这里 */
输出样例(对于图中给出的树):
思路:今天签到题有点儿早哈
int GetHeight(BinTree BT) { if (BT == NULL)return 0; //空树的情况 if (BT->Left == NULL&&BT->Right == NULL) return 1; if (BT->Left == NULL) return 1 + GetHeight(BT->Right); if (BT->Right == NULL) return 1 + GetHeight(BT->Left); return GetHeight(BT->Left) > GetHeight(BT->Right) ? 1 + GetHeight(BT->Left) : 1 + GetHeight(BT->Right); }