Question

The man in room no. 13 wants to exit from room no. 4. On the way he wants to go through each room but cannot enter any room for second time. Show his path.

Answer 1

It is said that the person is not allowed to enter other rooms more than once. It means that the condition is restricted to other rooms. But room no. 13 is his own so he can visit his cell twice or more times if required.

However three possible ways arise.

A. See the first picture.

   13 > 14 > 13 > 9 > 10 > 11 > 15 > 16 > 12 > 8 > 7 > 6 > 5 > 1 > 2 > 3 > 4

B. See the second picture.

   13 > 9 > 13 > 14 > 10 > 11 > 15 > 16 > 12 > 8 > 7 > 6 > 5 > 1 > 2 > 3 > 4

C. See the third picture.

   13 > 9 > 13 > 14 > 10 > 6 > 5 > 1 > 2 > 3 > 7 > 11 > 15 > 16 > 12 > 8 > 4

Read more on Brainly:

1. A prisoner who died in cell number 13, How to take his body out of the prison through Gate 4. the conditions : The body must pass through all the cells for all prisoners to see. No prisoner (bold for a reason ) is allowed to see him more than once. - https://brainly.in/question/16517949
2. The person in roon no.13 and wants to go out through 4. He wants to meet his person in each room before going out. Conditon is he cannot enterthe other rooms twice. - https://brainly.in/question/16538581

Answer 2

Path of the patients:

Condition from question is that the person should not visit the patient room twice. It is not said that the person cannot visit his/her room twice.

The path of the person is attached in the image below.

The person can visit the person in room 9 and return to his room number 13 and go visit the patients in room number 14, 15 and 16.

Then turn right and go to visit the patients in room number 12, 11 and 10.

Then turn right and visit patients in room number 6 and 5.

Then turn right and visit patients in room number 1, 2 and 3.

Then turn right and visit patients in room number 7 and 8.

Then take a final right turn and go visit patient in room number 4 and go out.