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为什么还是错的呢?(附程序如下)(help!!!!!!!!)

Posted by hujk2008 at 2004-06-19 17:49:24 on Problem 1001
#include<stdio.h>
#include<math.h>
int fun(int a,int k,int n)
{ 
	long temp1,temp2;
    int b[150]={0};      
    int i,j; 
    k=k*n; 
    b[149]=1;    
    for(i=0;i<n;i++)
	{ 
		temp2=0;
        for(j=149;j>=0;j--)
      { 
			temp1=b[j]*a+temp2;   
            b[j]=temp1%10;         
            temp2=(int)(temp1/10);
       }
	}
     i=0;
     while(b[i]==0&&i<=149-k) i++; 
     while(i<=149-k)
	    printf("%d",b[i++]); 
	 if(k==0)
	 {printf("\n");return 1;}
     printf(".");
     while(i<=149)
        printf("%d",b[i++]);
      printf("\n");
	  return 1;
}

int main()
{
	int n,i,k,j;
	char a[10],ab[10];
	int b;
loop:	while(1)
		{
			for(i=0;i<9;i++)
			{
				a[i]='\0';
				ab[i]='\0';
			}
		gets(ab);k=0;n=0;
		for(i=0;i<6;i++)
		{
			if(ab[i]!=' ')
				a[k++]=ab[i];
		}
		a[k]='\0';
		if(ab[7]!=' ')n=ab[7]-'0';
		if(ab[8]!=' '&&ab[8]!='\0')n=n*10+ab[8]-'0';
		b=0;k=0;i=0;
		for(i=9;i>-1;i--)
		{
			if(a[i]=='\0')continue;
			if(a[i]=='0')
		    	a[i]='\0';
			if(a[i]>0)
				break;
		}
		for(k=0;k<i;k++)
			if(a[k]=='.')
				break;
		k=i-k;
		for(j=0;j<=i;j++)
			if(a[j]!='.')
				b=b*10+a[j]-'0';
		if(b==0)
			{
				printf("0\n");
				goto loop;
			}
	     fun(b,k,n);
	}
	return 1;
}

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