HBC232193[HNOI2012]集合选数,状压dp,动态规划False Coin题解

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There are 41 coins, numbered by the integers from 0 to 40(where coin 0 is sure true coin), exactly one coin is false and differs in weight from other coins (while all other coins are equal in weight

There are 41 coins, numbered by the integers from 0 to 40(where coin 0 is sure true coin), exactly one coin is false and differs in weight from other coins (while all other coins are equal in weight).  Using a balance, one is able to determine if the weight of objects in the left pan is less than, greater than, or equal to the weight of objects in the right pan. Then begin to weight various groups of coins by placing equal numbers of coins in the left pan and in the right pan. Find out the false coins by weighing the following four times. Left pan Right pan 1st 1 2 7 8 13 14 19 20 25 26 31 32 37 38 0 4 5 10 11 16 17 22 23 28 29 34 35 40 2nd 0 3 6 11 13 14 16 21 24 29 31 32 34 39 2 4 5 7 12 15 20 22 23 25 30 33 38 40 3rd 5 7 9 11 13 14 16 18 20 22 33 35 37 39 0 6 8 10 12 15 17 19 21 32 34 36 38 40 4th 0 15 17 19 21 23 25 27 29 31 33 35 37 39 14 16 18 20 22 24 26 28 30 32 34 36 38 40 The results of the four times weightings were recorded. You are to write a program to determine the identifier of the false coin using the results of these weightings.

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标签： HBC232193[HNOI2012]集合选数 状压dp 动态规划False Coin题解