From: cc <caipenghui_c@163.com>
To: "Dan Cross" <crossd@gmail.com>
Cc: TUHS main list <tuhs@minnie.tuhs.org>
Subject: Re: [TUHS] A c program problem
Date: Wed, 22 Aug 2018 22:29:06 +0800 (GMT+08:00) [thread overview]
Message-ID: <4cc41edb.5155.1656209fbce.Coremail.caipenghui_c@163.com> (raw)
In-Reply-To: <5e35d6b8.513d.1656207b82c.Coremail.caipenghui_c@163.com>
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I want to figure out if the book is right or the compiler is right.
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cc
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邮箱:caipenghui_c@163.com
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签名由 网易邮箱大师 定制
On 08/22/2018 22:26, cc wrote:
Sorry, I won't be sending it next time. Oh oh, maybe I forgot to add; . I typed the code on the book, and the result of running the book was 5050, but the compiler was 100.
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cc
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邮箱:caipenghui_c@163.com
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签名由 网易邮箱大师 定制
On 08/22/2018 22:21, Dan Cross wrote:
Note, TUHS probably isn't the *best* forum to ask for help with basic C programs. :-)
That said, I suspect you mis-transcribed the program and that the line, `sum = sum + 1;` should be `sum = sum + i;`, or more idiomatically, `sum += i;`. Indeed, the whole program could be written:
#include <stdio.h>
int
main(void)
{
int i, sum = 0;
for (i = 1; i <= 100; i++)
sum += i;
printf("%d\n", sum);
return 0;
}
If you're using a C99 or later compiler, you can be slightly more succinct:
#include <stdio.h>
int
main(void)
{
int sum = 0;
for (int i = 1; i <= 100; i++)
sum += i;
printf("%d\n", sum);
return 0;
}
Hope that helps!
- Dan C.
On Wed, Aug 22, 2018 at 8:17 AM cc <caipenghui_c@163.com> wrote:
Hello everyone
I had a problem compiling a piece of c code from the book. The result of running the book is 5050, but the compiler is 100. I don't know which is right, please help me to see which is wrong. Thank you very much!
#include <stdio.h>
int main(void)
{
int i, sum = 0;
i = 1;
while ( i <= 100) {
sum = sum + 1;
i++;
}
printf("%d\n", sum)
return 0;
}
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cc
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邮箱:caipenghui_c@163.com
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签名由 网易邮箱大师 定制
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next prev parent reply other threads:[~2018-08-22 14:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-22 12:01 cc
2018-08-22 12:24 ` Donald ODona
2018-08-22 12:54 ` Mark Longridge
2018-08-22 14:21 ` Dan Cross
2018-08-22 14:26 ` cc
2018-08-22 14:29 ` cc [this message]
2018-08-22 14:32 ` Ralph Corderoy
2018-08-22 14:34 ` cc
2018-08-22 15:40 ` Toby Thain
2018-08-22 15:46 ` Caipenghui
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