TreeNode *sortArr(vector<int> &num, int begin,int end) // passing reference of num instead of value, or the recursion will waste lots of memory.
{
TreeNode *p = NULL;
if ( begin > end)
{
return p;
}
int mid = (begin+end) / 2;
p = new TreeNode(num[mid]);
p->left = sortArr(num,begin,mid-1);
p->right = sortArr(num,mid+1,end);
return p;
}
TreeNode *sortArr(vector<int> num, int begin,int end)
{
TreeNode *p = NULL;
if ( begin > end)
{
return p;
}
int mid = (begin+end) / 2;
p = new TreeNode(num[mid]);
p->left = sortArr(num,begin,mid-1);
p->right = sortArr(num,mid+1,end);
return p;
}
TreeNode *sortedArrayToBST(vector<int> &num) {
int len = num.size();
if (len == 0)
{
return NULL;
}
return sortArr(num,0,len-1);
}
int main() {
char *a[] = {"abcd","bbb","ccc","2222","eeee"};
char b[4][10] = {"3333","34444","hhhhh","qqqqq"};
char **arr = NULL;
//printf("%d", sizeof(a) / sizeof(char *));
//printf("%d",sizeof(*b));
sortArr(a,sizeof(a)/sizeof(char *),b,sizeof(b)/sizeof(*b),&arr);
printArr(arr,9);
system("pause");
}
void main03()
{
Teacher Array[3];
int i=0;
int num=3;
for(i=0;i<num;i++){
printf("\n enter your age:");
scanf("%d",&(Array[i].age));
}
for(i=0;i<num;i++){
printf("age:%d\n",Array[i].age);
}
printf("print===============\n");
printArr(Array,num);//数组首元素代表地址
sortArr(&Array,num);
printf("print===============\n");
printArr(Array,num);//数组首元素代表地址
printf("%s\n","hello,world!");
system("pause");
}