proof

來源: passenger101 於 2017-01-12 16:14:07 [檔案] [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次 (267 bytes)

回答: 請教求證題由追書於 2016-11-09 15:08:10

n gold and n silver. >>>2n beads.

n is even because:

View each string of the same colored beads as a single block. Then n blocks alternate. Thus n must be even.

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