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# 硬币称重

2018-12-15 17:25:51
#1
34
(由 Microsoft 翻译) 当在39枚硬币，把13枚硬币放在一边，13枚硬币在另一边。

1. 如果双方相等，游戏是不可能的，你必须刷新。
2. 如果一侧较重，另一侧较轻，则可溶解：

1. 如果双方相等，这意味着收起来的9枚重硬币之一是假的。将其中 3 个放在一边，将其中 3 个放在另一侧。如果一边更重，假币就在那里，如果两边相等，假币就不在那里。然后把一方的假嫌疑人放在一边，一边放在一边。
2. 如果 A 面较重，则意味着 A 面的 4 枚硬币可能是假的（较重），B 面的 4 枚硬币可能是假的（较轻）。在一侧，一个较重的假犯罪嫌疑人和3个较轻的假犯罪嫌疑人，B面的1名较轻的假犯罪嫌疑人和3名好币。

（不完整）
(原文) Coin Weighing

When in 39 coins, put 13 coins in one side and 13 coins in another.

1. If the two sides are equal, the game is impossible and you have to refresh.
2. If one side is heavier and the other is lighter, it is solvable:
Move 9 coins from the lighter side to the heavier side, move 9 of the coins from the heavier side away, and put 9 of the other coins to the lighter side. The heavier side becomes side A, and the lighter side becomes side B.
1. If the two sides are equal, this means one of the 9 heavier coins put away is fake. Place 3 of them on one side and 3 of them on the other. If one side is heavier the fake coin is there, if the two sides are equal the fake coin isn't there. Then place 1 of the fake suspects on one side and 1 on the other.
2. If side A is heavier, this means that either the 4 coins in side A may be fake (heavier) or the 4 coins in side B may be fake (lighter). On side A place 1 of the heavier fake suspects and 3 of the lighter fake suspects, on side B place 1 of the lighter fake suspects and 3 good coins.

(incomplete)

2018-12-15 17:25:51

#2
(由 Microsoft 翻译) 我们可以向你保证， 每一种情况都是可以解决的， 包括当你有 39 枚硬币和 13 比 13 的第一个重量相等的情况
(原文) We can assure you that every situation is solvable, including the situation when you have 39 coins and the first weigh of 13 vs 13 are equally weighed

2018-12-16 09:01:24

#3
34
(由 Microsoft 翻译) 我用了这个方法，我得到了第一名
(原文) I used this method and I got a first place

2021-07-03 00:22:17