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老是PE,烦请大家看一下我的输出部分

Posted by Aper at 2005-10-15 13:08:47 on Problem 1785
void main()
{		.......
		.......
		printf("(");
		show_ans(Root);
		printf(")");
}
void show_ans(pnode p)
{
	pnode q;

	if (p==NULL) return;
	if (p->left!=NULL) printf("(");
	show_ans(p->left);
	if (p->left!=NULL) printf(")");

	printf("%s",p->list);

	q=p->right;
	free(p);

	if (q!=NULL) printf("(");
	show_ans(q);
	if (q!=NULL) printf(")");
}

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