zzzhao

see xia da an

yaukinman

want to know

zb7803

我来看看

lkhlewis

青蓮居士

check ans..

mkl2345

6 and 6 then 3 and 3 then 1 and 1

gg2968

5識答？

pyhzf

thank you

XYZCrux

将12个乒乓球分成平均两份，称一次4 k, ^/ W0 P( B. m  D% v
将比较重的那份再平均分成两份成一次9 {! F( A% c) }$ c1 Q2 u. Q# P
剩下3个随意拿两个来称，如果天平平衡就是第三个，如果不平衡就是重的那个

wtfka

thank

agnesium

Thanks!

ban0212

第一次系一边四个，一边四个秤既

westgun

1 - compare 4 with 44 c3 @6 p2 U; D( v  P9 M: t7 B% s# G: Q
if  (4v4)= same that means the rest of 4 is got more weight4 x2 X  Q) K4 ~. C
    then goto 2 - compare rest of(4)  - 2 with 2 公仔箱論壇+ d/ R( ^1 Z0 b+ N8 `
           if (left side is more weight)
2 [- R" u+ \3 u% T3 ?8 Swww3.tvboxnow.com              then goto 3 - compare last (left side of ( 2) - 1 with 1 => get answer
4 f/ h1 f, V; A. Q9 B& }www3.tvboxnow.com          else ( right side is more weight)  N6 l0 P8 [. @9 g! M% I/ [
              then goto 3 - compare last (right side of (2) - 1 with 1 => get answerwww3.tvboxnow.com. U/ V, N6 D" M6 h- ^" h
else ( the left 4) then compare with above  , or right 4 also can compare above method...

ywl01

想了好久都不行

zhengfaxuezi

我的做法与4楼的做法一致，这样应该可以排除出来。但这个题目有个漏洞，只说重量异常，没说是重了，还是轻了。