There is 12 balls.. divide them into piles of 4
( i6 u& r. N0 Ctvb now,tvbnow,bttvbso 3 groups for 4..name is A,B,C
2 Z( G# g/ f. [, Mcase 1:
* ^6 ?% K t+ i! }, }" ]- c8 n% d公仔箱論壇measure A -- B
}+ g. V; k8 u1 T* wTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。A or B is heavier
. a6 l5 s1 N# b2 }' {9 M, U' Ftvb now,tvbnow,bttvbdivide that group into 2 by 2* S9 ^$ M6 w# f3 |: y! }$ F
then divide heavier group into 1 by 1
e" i* d: Y! n7 D$ V' _公仔箱論壇公仔箱論壇: k& C k r. ]' m
case 2:3 ]' d" D( [5 v3 D" w
A and B is the same.. therefore C has the heavier ball5.39.217.774 M8 w. g. C3 P4 R$ T
divide C into 2 by 2
; d& K: D: q Z! h8 a" w3 e2 |) ?tvb now,tvbnow,bttvbthen divide heavier group into 1 by 1..% l+ T% V4 i9 C$ e
* a9 {7 N. g J5 Y K+ B" r9 G8 Etvb now,tvbnow,bttvbgot it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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