Number sort using Min, Max and Variables

问题

I am new to programming and I am trying to create a program that will take 3 random numbers X Y and Z and will sort them into ascending order X being the lowest and Z the highest using Min, Max functions and a Variable (tmp)

I know that there is a particular strategy that I need to use that effects the (X,Y) pair first then (Y,Z) then (X,Y) again but I can't grasp the logic.

The closest I have got so far is...

y=min(y,z)
x=min(x,y) 
tmp=max(y,z) 
z=tmp 
tmp=max(x,y) 
y=tmp 
x=min(x,y) 
tmp=max(x,y) 
y=tmp 

I've tried so many different combinations but it seems that the problem is UNSOLVABLE can anybody else help?

回答1:

You need to get sort the X,Y Pair first

tmp=min(x,y)
y=max(x,y)
x=tmp

Then sort the Y,Z pair

tmp = min(y,z)
z=max(y,z)
y=tmp

Then, resort the X,Y pair (in case the original Z was the lowest value...

tmp=min(x,y)
y=max(x,y)
x=tmp

If the commands you have mentioned are the only ones available on the website, and you can only use each one once try:

# Sort X,Y pair
tmp=max(x,y) 
x=min(x,y) 
y=tmp 

# Sort Y,Z pair
tmp=max(y,z) 
y=min(y,z)
z=tmp 

# Sort X,Y pair again.
tmp=max(x,y) 
x=min(x,y) 
y=tmp 

Hope that helps.

回答2:

I'm not sure if I understood your question correctly, but you are over righting your variables. Or are you trying to solve some homework with the restriction to only use min() and max() functions?

What about using a list?

tmp = [x, y, z]
tmp.sort()
x, y, z = tmp

来源：https://stackoverflow.com/questions/18115046/number-sort-using-min-max-and-variables