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Re:怎么输入n组数据并判定输入结束(C)?In Reply To:Re:怎么输入n组数据并判定输入结束(C)? Posted by:hawk at 2003-12-13 19:38:28 为什么还是wrong answer?难道fun部分有问题?我下午在UNIX上调过的,现在凭记忆写出来(只把原来int b[150]改为short了),难道写错了?不会啊!大家帮忙看一下,谢谢!
void fun(float a,int n)
{ long al,temp1,temp2;
short b[150]={0}; /*存放结果的数组*/
int i,j,k=0;
short *p;p=b;
while(a!=(float)((int)a)) /*把a转为long型,存为al,并求小数位数k*/
{a*=10;k++;
}
k=k*n; /*n次方的小数位数*/
al=(int)a;
b[149]=1;
for(i=0;i<n;i++)
{ temp2=0;
for(j=149;j>=0;j--)
{ temp1=b[j]*al+temp2; /*求某位数乘以al后再加后一位进位进上来的数*/
b[j]=temp1%10;
temp2=temp1/10; /*往前进位的数*/
}
}
while(*p==0&&p<b+149-k) p++; /*处理掉前面多余的0*/
for(;p<b+150-k;p++)
printf("%d",*p);
printf(".");
for(;p<b+150;p++)
printf("%d",*p);
}
main()
{float a;int n;
while(scanf("%f%d",&a,&n)==2)
{ fun(a,n);}
}
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