用for迴圈的問題

sammymonkey1

問題1：Write a program that uses a for statement to calculate and print the product of the odd intergers from 1 to 15，初學者，系望各位大大能幫忙

I don't get what the product mean, if just *, this maybe what u wanna.

下載: 訪客無法瀏覽下載點，請先 註冊 或 登入會員

there have a much more easy way, but  I don't think your teacher will like it.
btw: by python, it is:
reduce(lambda x,y:x*y, xrange(2,16,2))
which I used to check the answer.

allure1989

FOR i=1 i<16 I++

迴圈裡面


printf i

I=I+1

是印出1.3.5.7....吧??

allure1989

或者...

直接for(i=1;i<16;i=i+2)

然後在PRINTF I 也OK

int sum=0;
for(i=1;i<=15;i=i+2)
sum+=i;

cout<<sum<<endl;

nikoung

int sum=0;
for(int i=1;i<=15;i=i+2)
sum*=i;

cout<<sum<<endl;

應該是這樣吧 不是要算乘積(product)嗎?

pkturtle

算乘積的話 int sum = 1;

不然怎麼算都是 0 .......

回復

下載: 訪客無法瀏覽下載點，請先 註冊 或 登入會員

pkturtle


    哈哈，和我第一版程序的問題一樣。幸好跑了一下，馬上改掉了。