HDU 4248【组合数学 + DP】
posted @ 2012-07-17 14:37
posted @ 2012-07-17 14:37
posted @ 2012-07-09 15:41
posted @ 2012-07-07 23:22
posted @ 2012-07-06 01:21
posted @ 2012-07-06 01:20
posted @ 2012-07-06 01:17
posted @ 2012-07-06 01:05
posted @ 2012-07-05 22:35