不是作业问题 [英] not a homework question

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问题描述



在C中写一个程序计算9 ^(8 ^(7 ^(3 ^(2 ^ 1))))))的语言
我试过了/>

#include< stdio.h>


int pow(int n)

{

int i,power;

power = n;

for(i = 0; i< n; i = i + 1)

power = power * power;

返回功率;

}


void main()

{

int result;

char ignore;

result = pow(9,pow(8,pow(7,pow(6) ,pow(5,pow(4,pow(3,pow(2,1))))))));

printf(" \ nresult is%d",result);

printf(" \\\
Press ENTER");

得到(& ignore);

}

但它不起作用。


如何在C中执行此操作标准语言?


我正在使用lcc-win32编译器& Windows 98.


帮助!


write a program in "C" language that computes 9^(8^(7^(6^(5^(4^(3^(2^1)))))))

I tried

#include <stdio.h>

int pow(int n)
{
int i,power;
power=n;
for(i=0;i<n;i=i+1)
power=power*power;
return power;
}

void main()
{
int result;
char ignore;
result= pow(9,pow(8,pow(7,pow(6,pow(5,pow(4,pow(3,pow(2,1) )))))));
printf("\nresult is %d", result);
printf("\nPress ENTER");
gets(&ignore);
}
but it does not work.

how to do that in "C" standard language?

I am using lcc-win32 compiler & windows 98.

help!

推荐答案

2008年3月12日星期三05: 57:12 +0100 ??? Three Headed Monkey写道???
On Wed, 12 Mar 2008 05:57:12 +0100???Three Headed Monkey wrote???

在C中写一个程序计算的语言

9 ^(8 ^(7 ^(6 ^(5 ^(4 ^(3 ^(2 ^ 1))))))))


我试过了


#include< stdio.h>


int pow(int n)
write a program in "C" language that computes
9^(8^(7^(6^(5^(4^(3^(2^1)))))))

I tried

#include <stdio.h>

int pow(int n)



请更改名称。 C有一个std库函数,具有相同的

名称,它的原型是:


double pow(double x,double y);

Change the name please. C has a std library function with the same
name and it''s prototype is:

double pow(double x, double y);


{

int i,power;

power = n;

for( i = 0; i< n; i = i + 1)

power = power * power;

返回功率;

}


void main()
{
int i,power;
power=n;
for(i=0;i<n;i=i+1)
power=power*power;
return power;
}

void main()



main()在C中永远无效。

main() is never void in C.


{

int result;

char ignore;

result =

pow(9,pow(8,pow(7,pow(6,pow(5,pow(4,pow(3,pow(2,1)))))))));
{
int result;
char ignore;
result=
pow(9,pow(8,pow(7,pow(6,pow(5,pow(4,pow(3,pow(2,1) )))))));



你的_own_ pow只需要一个参数,为什么这里有两个?


Your _own_ pow only takes one parameter, why here it has two??


printf(" ; \ nresult是%d",result);
printf("\nresult is %d", result);



我怀疑它溢出,因为''结果''只是一个int。

I suspect it overflows, since ''result'' is only an int.


printf( \ n按ENTER键);

得到(& ignore);
printf("\nPress ENTER");
gets(&ignore);



gets()被认为是有害的,绝对不能使用它。

gets() is considered harmful, NEVER use it.


}


但它不起作用。


如何在C中执行此操作标准语言?
}
but it does not work.

how to do that in "C" standard language?



我恐怕你不能,结果可能太大了。您可以选择

支持大量操作的非标准库,

,例如: gmp。

I am afraid you can''t, the result may be too big. You can choose
a non-standard libary that supports huge number operations,
e.g. gmp.


Three Headed Monkey写道:
Three Headed Monkey wrote:

在C中写一个程序计算9 ^(8 ^(7 ^(3 ^(2 ^ 1))))))的语言
write a program in "C" language that computes 9^(8^(7^(6^(5^(4^(3^(2^1)))))))



我不认为你可以在标准C中,结果将是巨大的...


-

Ian Collins。

I don''t think you can in standard C, the result will be huge...

--
Ian Collins.


3月12日下午12:57,三头猴子

< four_headed_mon ... @ yahoo.comwrote:
On Mar 12, 12:57 pm, Three Headed Monkey
<four_headed_mon...@yahoo.comwrote:

在C中写一个程序计算9 ^(8 ^(7 ^(3 ^(2 ^ 1))))))的语言
我试过了/>

#include< stdio.h>


int pow(int n)

{

int i,power;

power = n;

for(i = 0; i< n; i = i + 1)

power = power * power;

返回功率;


}


void main()

{

int result;

char ignore;

result = pow(9,pow(8,pow(7) ,pow(6,pow(5,pow(4,pow(3,pow(2,1))))))));

printf(" \ nresult is%d" ,结果);

printf(" \\\
Press ENTER");

得到(& ignore);


}


但它不起作用。


如何在C中执行此操作标准语言?


我正在使用lcc-win32编译器& Windows 98.


帮忙!
write a program in "C" language that computes 9^(8^(7^(6^(5^(4^(3^(2^1)))))))

I tried

#include <stdio.h>

int pow(int n)
{
int i,power;
power=n;
for(i=0;i<n;i=i+1)
power=power*power;
return power;

}

void main()
{
int result;
char ignore;
result= pow(9,pow(8,pow(7,pow(6,pow(5,pow(4,pow(3,pow(2,1) )))))));
printf("\nresult is %d", result);
printf("\nPress ENTER");
gets(&ignore);

}

but it does not work.

how to do that in "C" standard language?

I am using lcc-win32 compiler & windows 98.

help!



首先,你可能想让pow函数取两个参数:int

pow(int a,int n){.. 。}

其次,math.h中定义的pow函数为你完成工作,

除了它处理双打:float pow(double a,double n)

返回a作为浮动的n的幂。因此,如果你想处理

整数,你必须转换结果。

最后你可能想用循环来做这件事。它看起来像这样:


#include< math.h>

#include< stdio.h>

int main(){

double res = 1;

int n;

for(n = 2; n< = 9; n ++)

res = pow((double)n,res);

printf(" res =%f \ n",res);

返回0;

}


编译时不要忘记链接数学库(-lm)


但是这可能会溢出,导致res到达inf。你可以尝试使用long double和powl ...或更复杂的东西。
任何想法

结果可能是什么?

First, you may want to have the pow function take 2 arguments: int
pow(int a, int n) { ... }
Second, the pow function defined in math.h does the job for you,
except that it deals with doubles: float pow(double a, double n)
returns a to the power of n as a float. So if you want to deal with
integers you have to convert the result.
Finally you may want to use a loop to do this. It''d look like this:

#include <math.h>
#include <stdio.h>
int main(){
double res=1;
int n;
for( n=2; n<=9; n++ )
res = pow((double)n,res);
printf("res=%f\n",res);
return 0;
}

Don''t forget to link with the math library when compiling (-lm)

However this might overflow, resulting in res reaching inf. You can
try using long double and powl... Or more complicated stuff. Any idea
of what the resulting number might be?


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