如果虫每天都不偷懒, 偶数天只能到偶数点
所在版块：求学狮城 发贴时间：2008-06-19 14:50  评分:

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也来一道数学题 － 1300cc 　2008-06-19 10:04 (160 bytes , 1125reads )
question recritified. should be, find prob() of reaching 10 before 0. － 1300cc 　2008-07-23 01:07 (0 bytes , 351reads )
i think you need to use reflection principle somewhere. － 1300cc 　2008-07-17 02:07 (0 bytes , 308reads )
opz. should be at point (4) on day 10 － 1300cc 　2008-06-19 22:08 (0 bytes , 303reads )
agreed with majiao8... 75/1024 － icky 　2008-06-20 13:50 (0 bytes , 305reads )
75/1024 － 马脚8 　2008-06-20 12:05 (0 bytes , 300reads )
110/1024 － 大树下 　2008-06-20 10:39 (257 bytes , 433reads )
如果虫每天都不偷懒, 偶数天只能到偶数点 － 马脚8 　2008-06-19 14:50 (0 bytes , 298reads )
第一天在原点，第二天到下一点，所以偶数天到奇数点 － shwan 　2008-06-19 20:20 (49 bytes , 318reads )
0 － icky 　2008-06-19 13:49 (0 bytes , 305reads )
11/4096? － shwan 　2008-06-19 11:28 (0 bytes , 272reads )