Question

H

離散數學 第一章
請問第19題怎麼算
第二張是答案可以參考

19. How many times is the print statement executed for the
following program segment? (Here, i, j, k, and m are integer
variables.) ni diaq orta
)
for i:=1 to 20 do
as U =
for j := 1 to i do
for k := 1 to j do
for m:= 1 to k do
groll
print (i* j) + (k * m)

8
35
(32
28.
8
=
2i
b) 512
i=1
1. a) (16) b) (3) c) (3)
3. (38)
5. a) 25 b) 2n
CE 41
7. a) (3)
)
b) (25) c) (5) d) 1
8
f) (28) -
9. n=7 11. a) (14) b) (15') + 3(1) +3() + ()
3
13. a) (6) b) :- (-21) 15. (23) (24!) 17. a) (12)
2i) 120
19. (23)
21. 24,310 = 21-i [for n= (13)]
()
23. a) Place one of the m identical objects into each of the n distinct containers. Th
identical objects to be placed into the n distinct containers, resulting in
n+ (m - n)-
(*+ * = * = 1) = (n = 1) = (% = ) distributions.
25. a) 29 b) 24
27. a) (3 +3 - 1) =4 b) 10 c) 48 d) (+4- )(+3 - ') +(3+2 - 1)(2+5
+
e) 180 f) 420
n
-
=
-
m-n
m-n
(+(2+3
(3+
.
12+5
=

離散數學

Answer 1

✨ Jawaban Terbaik ✨

C

我提供我的思路
先給4根棍子
| | | |
放入19顆球一起做排列
最右邊的棍子代表i定位，i＝棍子左邊的球數＋1
j是右邊數來第二個棍子，j＝棍子左邊的球數＋1
k,m同理
答案就出來了。
C23取4