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不知哪里就RE了~大家帮帮忙~

Posted by yhzn at 2010-04-28 16:36:08 on Problem 1023
#include<stdio.h>

panduan(int max,int x[])               /*判断被除数是否是000001的形式*/
{
	int result,t;
	for(t=2;t<max;t++)
		if(x[t]!=0)
		{
			result=0;
			return result;
		}
	if(x[max]==1)
	{
		result=1;
		return result;
	}
	else
	{
		result=0;
		return result;
	}
}

chufa(int max,int x[])                 /*对原数除二*/
{
	int t;
	for(t=2;t<max;t++)
	{
		x[t+1]+=x[t]%2*10;
		x[t]=x[t]/2;
	}
	x[max]=x[max]/2;
}

main()
{
	int cishu,shuwei,a[70]={0},x[70];
	int t,max,panduan(int max,int x[]),chufa(int max,int x[]);
	char b[70],temp;
	scanf("%d",&cishu);
	for(;cishu>0;cishu--)
	{
		scanf("%d\n",&shuwei);
		shuwei++;
		for(t=2;t<=shuwei+1;t++)
			scanf("%1c",&b[t]);
		t=2;
		while(1)
		{
			scanf("%1c",&temp);
			if(temp=='\n')
				break;
			x[t]=temp-48;
			t++;
		}
		max=t-1;
		if(max==2&&x[2]==0)           /*单独处理n=0的情况*/
		{
			for(t=2;t<=shuwei;t++)
				printf("0");
			printf("\n");
			continue;
		}
		if(x[2]<0)                    /*将负数变正*/
		{
			for(t=2;t<max;t++)
				x[t]=x[t+1];
			max--;
			for(t=2;t<=shuwei;t++)
			{
				if(b[t]=='p')
					b[t]='n';
				else
					b[t]='p';
			}
		}
		for(t=shuwei;t>1;t--)
		{
			if(panduan(max,x))
			{
				a[t]=1;
				break;
			}
			a[t]=x[max]%2;
			if(b[t]=='p'&&a[t]==1)
			{
				x[max]--;
				if(x[max]<0)
				{
					x[max]+=10;
					x[max-1]--;
				}
				chufa(max,x);
			}
			if(b[t]=='n'&&a[t]==1)
			{
				x[max]++;
				if(x[max]>9)
				{
					x[max]-=10;
					x[max-1]++;
				}
				chufa(max,x);
			}
			if(a[t]==0)
				chufa(max,x);
		}
		if((panduan(max,x)==1&&b[t]=='p'))
		{
			for(t=2;t<=shuwei;t++)
				printf("%d",a[t]);
			printf("\n");
		}
		else
			printf("Impossible\n");
		for(t=2;t<=shuwei;t++)
			{
				a[t]=0;
				b[t]=0;
			}
	}
}

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