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¥Ñ yll ©ó ¬P´Á¥| ¤­¤ë 08, 2003 9:18 pm


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¥Ñ Raceleader ©ó ¬P´Á¥| ¤­¤ë 08, 2003 9:23 pm


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A+B=1+2+3+...+100=5050
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¥Ñ scsnake ©ó ¬P´Á¥| ¤­¤ë 08, 2003 9:33 pm


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¥Ñ scsnake ©ó ¬P´Á¥| ¤­¤ë 08, 2003 9:35 pm


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¥Ñ Raceleader ©ó ¬P´Á¥| ¤­¤ë 08, 2003 9:37 pm


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¥Ñ ---- ©ó ¬P´Á¥| ¤­¤ë 08, 2003 10:10 pm


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a50-b50=50

a1+...+a50+b1+...+b50=5050
a1+...+a50-(b1+...+b50)=1275
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¥Ñ --- ©ó ¬P´Á¤­ ¤­¤ë 09, 2003 1:27 pm


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¥Ñ ming ©ó ¬P´Á¤­ ¤­¤ë 09, 2003 2:47 pm


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¥Ñ yptsoi ©ó ¬P´Á¤­ ¤­¤ë 16, 2003 5:32 pm


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¥Ñ heron0520 ©ó ¬P´Á¤­ ¤­¤ë 16, 2003 5:47 pm


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¥Ñ E.T ©ó ¬P´Á¤­ ¤­¤ë 16, 2003 5:48 pm


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¥Ñ ¯Á¬¥¦è ©ó ¬P´Á¤­ ¤­¤ë 16, 2003 10:29 pm


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¥Ñ ¯«¥G¨ä§Þ ©ó ¬P´Á¤­ ¤­¤ë 16, 2003 10:41 pm


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¥Ñ chrisllsa ©ó ¬P´Á¤­ ¤­¤ë 16, 2003 10:55 pm


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¥Ñ chrisllsa ©ó ¬P´Á¤­ ¤­¤ë 16, 2003 10:57 pm


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¥Ñ --- ©ó ¬P´Á¤­ ¤­¤ë 16, 2003 11:18 pm


©_°¸©_½Í:
A+B=1+2+3+...+100=5050 ==0 (mod 2)
A-B=1+2+3+...+50=1275 ==1 (mod 2)

but A-B = (A+B)-2B == A+B (mod 2)
¥Ù¬Þ, so it can't be done.

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¥Ñ Raceleader ©ó ¬P´Á¤­ ¤»¤ë 20, 2003 2:09 am


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¥Ñ dideo ©ó ¬P´Á¤@ ¤»¤ë 30, 2003 12:34 am


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¥Ñ ¤p»ï ©ó ¬P´Á¤@ ¤Q¤@¤ë 03, 2003 12:19 am


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