1- Write a function that returns 7 when getting 4 and 4 when getting 7, without using any conditions.
2- As above, only now without using any mathematical operations.
3- As above, only now without using any logical operations.
4- As above, only now without using any operation at all. Extra space is allowed though.
5- What is the minimum space needed to apply last question?

Question

1- Write a function that returns 7 when getting 4 and 4 when getting 7, without using any conditions.
2- As above, only now without using any mathematical operations. 
3- As above, only now without using any logical operations.
4- As above, only now without using any operation at all. Extra space is allowed though.
5- What is the minimum space needed to apply last question?

Sigiloso · Accepted Answer

1- Function that returns 28/n
2- Function that returns the number it gets XOR 011
3- Finction that builds 8 elements array and puts 4 in index 7, puts 7 in index 4, then returns the number in index n
4- 4 elements if array, 2 elements if dictionary.

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