ACdream 1196 KIDx's Pagination

One Day, KIDx developed a beautiful pagination for ACdream. Now, KIDx wants you to make another one.

The are n pages in total.
The current page is cur.
The max distance to current page you can display is d.

Here are some rules:

• The cur page button is disabled.
• If cur page is the first page, the button "<<" should be disabled.
• If cur page is the last page, the button ">>" should be disabled.
• If the button "x" is disabled, print "[x]"; else print "(x)".
• You should not display the "..." button when there is no hidden page.

You can assume that the button "..." is always disabled.

Input

There are multiple cases.
Ease case contains three integers n, cur, d.
1 ≤ n ≤ 100.
1 ≤ cur ≤ n.
0 ≤ d ≤ n.

Output

For each test case, output one line containing "Case #x: " followed by the result of pagination.

Sample Input

10 5 210 1 2

Sample Output

Case #1: (<<)[...](3)(4)[5](6)(7)[...](>>)Case #2: [<<][1](2)(3)[...](>>)

Hint

Case 1: 

Case 2: 

原题链接：KIDx's Pagination
认真看题的话，这题不难，挺循规蹈矩的！

来看代码：

#include <iostream>#include <cstdio> using namespace std; int main(){    int n,cur,d,tp,cnt = 0;    int i;    while(scanf("%d %d %d",&n,&cur,&d)!=EOF)    {        printf("Case #%d: ",++cnt);        if(cur != 1) printf("(<<)");        else printf("[<<]");        if(cur - d > 1) printf("[...]");        if(cur - d < 1) tp = 1;        else tp = cur - d;        for(i = tp; i < cur && i >= 1; i++)            printf("(%d)",i);        printf("[%d]",cur);       //以cur为分水岭        for(i = cur + 1; i <= cur + d && i <= n; i++)            printf("(%d)",i);        if(cur + d < n) printf("[...]");        if(cur != n) printf("(>>)");        else printf("[>>]");        puts("");  //这条语句等价于printf("\n");或者cout>>endl;    }    return 0;}

题不难，代码也不难理解，只要认真耐心看完就能懂哦！