chapter3 Start and End

3-3 A to B 2

challenge: 4 lines

code:3-3.a2b

(start)a=(end)B

(end)B=(start)b

(end)a=(start)B

(start)B=(end)b

3-4 Swap

challenge: 4 lines

code:3-4.a2b

(start)a=>>>>>>>a

(end)b=(start)b

a=(end)a

=

3-5 Match

challenge: 7 lines

code:3-5.a2b

Aa=(return)true

Bb=(return)true

Cc=(return)true

(end)a=(start)A

(end)b=(start)B

(end)c=(start)C

=(return)false

3-6 Most 2

challenge: 11 lines

code:3-6.a2b

ba=ab

ca=ac

cb=bc

ab=(end)x

cx=(end)y

x=y

ac=(end)y

bc=(end)y

ay=aa

by=bb

cy=cc

3-7 Palindrome

challenge: 8 lines

code:3-7.a2b

(start)<a>a=

(start)<b>b=

(start)<c>c=

(end)a=(start)<a>

(end)b=(start)<b>

(end)c=(start)<c>

<=(return)false

=(return)true