OJ-Problems-Source/HDOJ/1117_autoAC.cpp
2016-08-13 10:51:15 +08:00

63 lines
1.4 KiB
C++

#include<iostream>
#include<cstdio>
#include<vector>
#include<algorithm>
#include<cstring>
#include<queue>
#include<set>
#include<math.h>
#include<string>
using namespace std;
typedef long long ll;
using namespace std;
#define INF 10000000
int a[54][2];
int main()
{
int n;
while(scanf("%d",&n)!=EOF && n)
{
memset(a,0,sizeof(a));
if(n==1)
{
printf("Printing order for %d pages:\n", n);
printf("Sheet 1, front: Blank, 1\n");
continue;
}
int i,j,k = n/4;
if(n%4!=0 ) k++;
for(i=1;i<=2*k;i++)
a[i][0] =i;
for(i=2*k,j=i+1;i>=1;i--,j++)
{
if(j<=n)
a[i][1]=j;
}
printf("Printing order for %d pages:\n",n);
char s[2][10]={"front","back "};
char *p;
for(i=1;i<=2*k;i++)
{
if(a[i][0]==0 && a[i][0]==0 )continue;
j=i/2;
if( i&1 )
{
p=s[0];
j++;
}
else
p=s[1];
printf("Sheet %d, %s:",j,p);
if( i&1 )
swap(a[i][0],a[i][1]);
for(int m=0;m<2;m++)
{
if(a[i][m] ) printf(" %d",a[i][m]);
else printf(" Blank");
if(!m) putchar(',');
}
printf("\n");
}
}
}