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Re:c语言的源代码

Posted by 19861555317 at 2020-01-24 11:00:09 on Problem 1001
In Reply To:c语言的源代码 Posted by:1115267126 at 2016-03-04 17:42:40
> #include<stdio.h>
> #include<string.h>
> void rmpoint(char a[],int* c)
> {
> 	int i,j,p,c1;
> 	c1=0;
> 	char b[205];
> 	p=strlen(a);	
> 	for(i=0,j=0;i<p;i++)
> 	{
> 		if(a[i]=='.')
> 		{			
> 			c1=p-1-i;
> 			continue;			
> 		}
> 		a[j]=a[i];
> 		j++;
> 	}
> 	*c=c1;
> 	a[j]=0;
> }
> void chen(char a[],char b[])
> {
> 	int c[410]={0};
> 	int i,j,sum,k,k1;
> 	k=409;
> 	k1=409;
> 	for(i=strlen(a)-1;i>=0;i--)
> 	{
> 		for(j=strlen(b)-1;j>=0;j--,k--)
> 		{
> 			sum=(a[i]-'0')*(b[j]-'0')+c[k];
> 			c[k-1]=c[k-1]+sum/10;
> 			c[k]=sum%10;
> 		}
> 		k=--k1;
> 	}
> 
> 	for(i=0;i<410;i++)
> 		if(c[i]!=0)
> 			break;
> 	for(j=i,i=0;j<410;j++,i++)
> 		b[i]=c[j]+'0';
> 	b[i]=0;
> }
> void addpoint(char a[],char b[],int p)
> {
> 	int i,j,p1,p2,j1,min;
> 	p2=0;
> 	p1=strlen(a);
> 	if(p1>=p)
> 	{
> 		p=p1-p;
> 		for(i=p1-1;i>=0;i--)
> 		{
> 			if(a[i]!='0')
> 				break;
> 			p2++;
> 		}
> 		if(p1-p2<p)
> 			min=p;
> 		else
> 			min=p1-p2;
> 		for(i=0,j=0;i<min;i++,j++)
> 		{
> 			if(p==i)
> 			{
> 				b[j]='.';
> 				i--;
> 				p--;
> 				continue;
> 			}
> 			b[j]=a[i];
> 		}
> 		b[j]=0;
> 	}
> 	else
> 	{
> 		b[0]='.';
> 		p=p-p1;
> 		for(i=p1-1,j1=0;p1>=0;i--)
> 		{
> 			if(a[i]!='0')
> 				break;
> 			j1++;
> 		}
> 		for(i=1,j=0;j<p;j++,i++)		
> 			b[i]='0';
> 		for(j=0;j<p1-j1;i++,j++)
> 			b[i]=a[j];
> 		b[i]=0;
> 	}
> 		
> }
> int main()
> {
> 	char n1[7],n2[410],n3[410];
> 	int a,p,i;
> 	while(scanf("%s %d",n1,&a)==2)
> 	{
> 	rmpoint(n1,&p);
> 	strcpy(n2,n1);
> 	for(i=0;i<a-1;i++)
> 	{
> 		chen(n1,n2);
> 	}
> 	p=p*a;
> 	if(p!=0)
> 	addpoint(n2,n3,p);
> 	printf("%s\n",n3);
> 	}
> 	/*p=strlen(n3);
> 	for(a=0;a<p;a++)
> 		printf("%c",n3[a]);
> 	}*/
> 	return 0;
> }

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