题目
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2010 |
| 2 |
| 2010 |
| 3 |
| 2010 |
| 2009 |
| 2010 |
答案
| 1 |
| 2 |
| 1 |
| 2 |
∴f(
| 1 |
| 2 |
| 1004 |
| 2010 |
| 1 |
| 2 |
| 1004 |
| 2010 |
f(
| 1 |
| 2 |
| 1003 |
| 2010 |
| 1 |
| 2 |
| 1003 |
| 2010 |
f(
| 1 |
| 2 |
| 1002 |
| 2010 |
| 1 |
| 2 |
| 1002 |
| 2010 |
…
f(
| 1 |
| 2 |
| 1 |
| 2 |
即f(
| 1 |
| 2010 |
| 2009 |
| 2010 |
f(
| 2 |
| 2010 |
| 2008 |
| 2010 |
f(
| 3 |
| 2010 |
| 2007 |
| 2010 |
…
f(
| 1005 |
| 2010 |
∴f(
| 1 |
| 2010 |
| 2 |
| 2010 |
| 3 |
| 2010 |
| 2009 |
| 2010 |
故答案为2009