// w1.cpp : 定义控制台应用程序的入口点。
//

#include <stdio.h>
#include <string.h>
//补前导0
void strpre(char* dest,int sum)
{
	char buffer[256]={'\0'};
	strcpy(buffer,dest);
	while(sum>0)
	{
		*dest++='0';
		sum--;
	}
	int i=0;
	while(buffer[i]!='\0') *dest++=buffer[i++];
}
//对齐字符串 用sfill来填充
void stralign(char* dest1,char* dest2,char sfill)
{
	char buffer[256]={'\0'};
	int len1=strlen(dest1);
	int len2=strlen(dest2);
	if (len1==len2) return;
	int bc=0;
	int i=0;
	if(len1>len2) 
	{
		i=0;
		strcpy(buffer,dest2);
		bc=len1-len2;
		while(bc>0)
		{
			*dest2++=sfill;
			bc--;
		}
		while(buffer[i]!='\0') *dest2++=buffer[i++];
	}
	else 
	{
		i=0;
		strcpy(buffer,dest1);
		bc=len2-len1; 
		while(bc>0)
		{
			*dest1++=sfill;
			bc--;
		}
		while(buffer[i]!='\0') *dest1++=buffer[i++];
	}
}
//字符串累加器
/*
用法示例：此示例输出1-101的所有奇数
char t1[256]={'\0'};
char* p=&t1[0];
strcpy(t1,"1");
strpre(t1,5);
while(1)
{
  stracc(t1,'2');
  while(*p=='0') { p++;}
  printf("%s\n",p);
  p=&t1[0];
  if(t1[3]>'0') break;
}
*/
void stracc(char* dest,char ad)
{
	int len=strlen(dest);
	int flag=0;
	int tmp;
	len--;
	flag=(dest[len]-0x30+ad-0x30) /10;
	dest[len]=(dest[len]-0x30+ad-0x30) %10+0x30;
	while(len>0)
	{
		len--;
		tmp=dest[len]-0x30+flag;
		dest[len]=((dest[len]-0x30)+flag)%10+0x30;
		flag=tmp/10;
	}
}
//字符串乘法 乘数是1位数
/*
用法示例;
char t1[256]={'\0'};
char* p=&t1[0];
strcpy(t1,"987589");
strpre(t1,8);
strmul(t1,'9');
p=&t1[0];
while(*p=='0') { p++;}
printf("%s\n",p);
*/
void strmul(char* dest,char ad)
{
	int len=strlen(dest);
	int flag=0;
	int tmp;
	len--;
	flag=((dest[len]-0x30)*(ad-0x30))/10;
	dest[len]=((dest[len]-0x30)*(ad-0x30)) %10+0x30;
	while(len>0)
	{
		len--;
		tmp=(dest[len]-0x30)*(ad-0x30)+flag;
		dest[len]=((dest[len]-0x30)*(ad-0x30)+flag)%10+0x30;
		flag=tmp/10;
	}
}
//字符串左移位右补0
void strmovl(char* dest,int bit)
{
	int len=strlen(dest);
	for(;bit>0;bit--) dest[len++]='0';
	dest[len]='\0';
}
void strmuls(char* dest1,char* dest2)
{
	char buffer[100][256]={'\0'};
	int len=strlen(dest2);
	int i=0,j=0;
	for(;len>0;len--)
	{
		strmul(dest1,dest2[len]);
		strcpy(buffer[i],dest1);
	}
}
int main()
{
	char t1[256]={'\0'};
	char t2[256]={'\0'};
	char* p=&t1[0];
	strcpy(t1,"1");
	//strcpy(t2,"123289324125");
	//stralign(t1,t2,'0');
	//printf("$1-:%s\n$2-:%s\n",t1,t2);
	strpre(t1,5);
	while(1)
	{
		stracc(t1,'2');
		while(*p=='0') { p++;}
		printf("%s\n",p);
		p=&t1[0];
		if(t1[3]>'0') break;
	}
	strcpy(t1,"987589");
	strpre(t1,8);
	strmul(t1,'9');
	strmovl(t1,8);
	p=&t1[0];
	while(*p=='0') { p++;}
	printf("%s\n",p);
	//stracc(t1);
	//for(int i=0;i<256;i++) printf("i=%3d",i,t1[i]);
	//printf("%s\n",t1);
	printf("\n");
	return 0;
}