自己查了很久也找不到那里弄到RE，空行的情况也考虑了，而且在ZOJ也AC了，哪位高手帮忙看一下
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <vector> 
using namespace std;
vector<int> a[60];
char* line,*lp;
int n,temp,i,j,tpnum,ll;
bool flag[60];
int pcode[60];
void process()
{
	bool tflag[60];
	int j,k;
	for (j=1; j<=n-1; j++)
	{
		memset(tflag,0,sizeof(tflag));
		tflag[pcode[j]]=true;
		for (k=j+1; k<=n-1; k++) 
			tflag[pcode[k]]=true;
		for (k=1; k<=n; k++) 
			if (tflag[k]==false && flag[k]==false)
			{
				a[pcode[j]].push_back(k);
				flag[k]=true;
				break;
			}
	}
}
void printans(int v)
{
	int iter,g,k;
	printf("(%d",v);
	if (a[v].size()!=0) printf(" ");
	k=a[v].size();
	for (iter=0; iter<=k-1; iter++)
	{
		g=a[v][iter];
		printans(g);
		if (iter!=k-1) printf(" ");
	}
	printf(")");
}
void readline()
{
	int li,lv;
	int numl;
	lv=strlen(line);
	n=0; numl=0;
	for (li=0; li<lv; li++)
	{
		if (line[li]!=' ') numl=numl*10+(line[li]-'0');
		else
		{
			pcode[++n]=numl;
			numl=0;
		}
	}
	pcode[++n]=numl;
	++n;
}
int main()
{
	//freopen("1965.txt","r",stdin);
	line=new char[120];
	while(gets(line))
	{
		if (strcmp(line,"")==0) 
		{
			printf("(1)\n");
			continue;
		}
		memset(flag,0,sizeof(flag));
		memset(pcode,0,sizeof(pcode));
		readline();
		for (i=1; i<=n; i++) a[i].resize(0);
    	process();
		printans(pcode[n-1]);
		printf("\n");
		strcpy(line,"");
	}
	return 0;
}