A long IQ test: five questions about robbers catching beans.

Because the prompt 1 first shows that all people are smart, so they think first and then catch beans, so the first person will definitely not catch more than 20 numbers.

Because if the first person catches 2 1 bean, the last three people will certainly only catch 20 beans, and only 19 beans will be left, so the last person will die no matter how he catches it.

Then, because the first person can't catch more than 20 beans, in order to kill the two people behind him, he will choose a number above 50, which can be divisible by 3 and less than 20, so only 5 1 divided by 3 equals 17.

Next, the second man caught it. When he receives the message from the last person, he will definitely catch a number following this, so it is either+1,-1 or equal to 17.

At this time, the third person can infer that the first two people took 17 respectively according to the number of beans left, so he will definitely take a similar number or the same number, that is, 17.

At this time, there are only 5 1 beans left, and the fourth person is quite helpless, because he is dead when he catches 17, and he is dead when he catches other numbers, so he will want to drag a few into the water, even if it is 17.

At this time, there were only 32 in the bag, and no matter how he grabbed it, he could not escape the end of death.

In fact, the focus of this topic is prompt 1 and 2. They are all smart people. They kill people if they can't save their lives, which leads to the tragedy of the last person's death. . .

Anxious ... that's the basic situation. . . Typing is so tired. .