#include <stdio.h>
#define YEAR 365
void main()
{
 void count(int year, int month);
 int year,i,j;
 do
 {printf("Please input one integer number as 'year'(0~999999):\n");
 scanf("%ld",&year);
 if(year>999999||year<0)
 printf("WANNING:ERROR,please input again!");}
 while(year>999999||year<0);
 j=(year+(year-1)/4-(year-1)/100+(year-1)/400)%7;//查询该年一月一日的星期
      printf("%d年的一月一日是星期%d\n",year,j);
 for(i=1;i<13;i++)
 {
  printf("month:%d\n",i);
  count(year,i);
 }
}
int leap(int year)
{
 int n;
 n=(year%4==0&&year%4!=0||year%400==0); //判断该年是否为闰年
 return(n);
}
void count(int year, int month)
{
 int i,day,first_day,flag,year1,year2,temp=6;
 flag=leap(year);
 year1=year/100;
 year2=year%100;  
 if(year>=2000)  
 {
  year1-=20;
  day=year1/4;  
  day+=(YEAR+24)*year1+YEAR*year2+(year2-1)/4;
  if(year>2000)day++;
  switch(month)
  {
  case 1:day+=0;break;
  case 2:day+=31;break;
  case 3:day+=59+flag;break;
  case 4:day+=90+flag;break;
  case 5:day+=120+flag;break;
  case 6:day+=151+flag;break;
  case 7:day+=181+flag;break;
  case 8:day+=212+flag;break;
  case 9:day+=243+flag;break;
  case 10:day+=273+flag;break;
  case 11:day+=304+flag;break;
  case 12:day+=334+flag;break;
  }
  day+=temp;  
  first_day=day%7;
 }
 else  
 {
  year1=20-1-year1;
  year2=100-year2-1;
  day=year1/4;
  day+=36524*year1+365*year2+year2/4;
  switch(month)
  {
  case 12:day+=31;break;
  case 11:day+=61;break;
  case 10:day+=92;break;
  case 9:day+=122;break;
  case 8:day+=153;break;
  case 7:day+=184;break;
  case 6:day+=214;break;
  case 5:day+=245;break;
  case 4:day+=275;break;
  case 3:day+=306;break;
  case 2:day+=334+flag;break;
  case 1:day+=365+flag;break;
  }
  day-=temp;
  day=day%7;
  first_day=(7-day)%7;
 }
 switch(month)
 {
 case 1:
 case 3:
 case 5:
 case 7:
 case 8:
 case 10:
 case 12:month=31;break;
 case 4:
 case 6:
 case 9:
 case 11:month=30;break;
 case 2:month=28+flag;
 }
 printf(" SUN MON TUE WED THU FRI SAT\n");
 for(i=1;i<=4*first_day;i++)
  printf(" ");
 for(i=0;i<month;i++)
 {
  printf("%4d",i+1);
  if((first_day+i)%7==6)
      printf("\n");
 }
 printf("\n");
}
请问怎么将这个程序的输出格式分两栏，左面一栏是1~6月的月历，右面一栏是7~12月的月历？谢谢！