21+50+15=86
( i0 I5 N6 m5 a# R) zTVBNOW 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。why 86...tvb now,tvbnow,bttvb! c* h2 c$ N9 U/ h( P. v* Q
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 215.39.217.76; |2 ?6 G; C( i; u. k1 ]# f" H7 \
then he giv bck his fren 505.39.217.76' h A; w z5 w
and the shoes cost is 15
' i+ a ]2 ^& q C: I% G$ k* u8 r, d! K. Z
so total he loss is 86...
7 X6 p4 I5 f/ I5.39.217.76
5 e: ^1 Y2 b0 t% c0 {TVBNOW 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。[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |