// P.210

#1.

0
1
2
3
4
count after loop = 5


#3

0
count after loop = 1


#5
0
0
.....
.....


P.221

#7

1
2
3
4


#9

4
3
2
1

#11

0
0.5
1 
1.5
2
2.5


#13

0
0
0
1
0
1
2