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see xia da an
want to know
我来看看
check ans..
6 and 6 then 3 and 3 then 1 and 1
5識答?
thank you
将12个乒乓球分成平均两份,称一次" a% l, d. u8 o& s
将比较重的那份再平均分成两份成一次tvboxnow.com5 [1 G1 a8 [! A5 \( C0 m
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
thank
Thanks!
第一次系一边四个,一边四个秤既
1 - compare 4 with 4tvboxnow.com. _5 h8 a/ X4 D- N, \. q/ [
if  (4v4)= same that means the rest of 4 is got more weighttvboxnow.com4 u4 |8 U: v; T4 T
    then goto 2 - compare rest of(4)  - 2 with 2
6 @/ L- b8 \. ^) D, p           if (left side is more weight)
% @9 l3 d6 P; `& G5 X) v公仔箱論壇              then goto 3 - compare last (left side of ( 2) - 1 with 1 => get answer/ S/ D3 @; Z1 |7 a' G6 w" e
          else ( right side is more weight)
9 {( O7 n* w3 l5 G0 y/ o* D              then goto 3 - compare last (right side of (2) - 1 with 1 => get answertvboxnow.com" D6 k! V2 H! d; n
else ( the left 4) then compare with above  , or right 4 also can compare above method...
想了好久都不行
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。
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