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ALL > Computer and Education > courses > university courses > undergraduate courses > An Overview of Computer Science > zstu-(2020-2021-2) > online classroom exercise >
online classroom exercise 5 Version 0
👤 Author: by writer 2021-03-30 01:14:45
write an algorithm for calcuting N!, N=20

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3108655967qqcom • 2021-03-30 09:52:01
#include<iostream>
using namespace std;
long long f(long long a){
long long i,res=1;
for(i=1;i<=a;i++){
res=res*i;

}
return res;
}
int main()
{
long long input;
cin>>input;
cout<<f(input)<<endl;
return 0;
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3301794392qqcom • 2021-03-30 11:26:19
#include &lt;stdio.h&gt;

int main(){

int i,j=20;

double sum=1;

&nbsp;

for(i=1;i&lt;=j;i++){

sum*=i;

}

printf("%lf",sum);

&nbsp;

} PostVer 0

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1017364560qqcom • 2021-03-30 13:40:26
#include&lt;iostream&gt;
using namespace std;
int main(){
int i,k;
long long sum=1;
cin&gt;&gt;i;
for(k=1;k&lt;=i;k++){
sum=sum*k;
}
cout&lt;&lt;sum&lt;&lt;endl;
return 0;

}

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1281489327qqcom • 2021-03-30 15:28:40
def Greetings():
N=20
n=1
while(N>0):
n=n*N
N=N-1 PostVer 0

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1634605411qqcom • 2021-03-30 16:47:05
#include&lt;bits/stdc++.h&gt;
using namespace std;
typedef long long ll;
ll jiecheng(ll a) {
ll ans=1;
for(int i=1; i&lt;=a; ++i) {
ans*=i;
}
return ans;
}
int main() {
cout&lt;&lt;jiecheng(20);
return 0;
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1917871807qqcom • 2021-03-30 16:49:16
<a href="http://www.yvsou.com/wp-content/uploads/sites/30/2021/03/4TDGB8PWORK9W45C5F1.png"><img class="alignnone size-medium wp-image-9426" src="http://www.yvsou.com/wp-content/uploads/sites/30/2021/03/4TDGB8PWORK9W45C5F1-300x179.png" alt="" width="300" height="179" /></a> PostVer 0

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2542886026qqcom • 2021-03-30 17:25:56
<a href="http://www.yvsou.com/wp-content/uploads/sites/30/2021/03/屏幕截图-2021-03-30-173018.jpg"><img class="alignnone size-medium wp-image-9428" src="http://www.yvsou.com/wp-content/uploads/sites/30/2021/03/屏幕截图-2021-03-30-173018-300x182.jpg" alt="" width="300" height="182" /></a>#include&lt;iostream&gt;
using namespace std;
int main()
{
long long int result=1,n,i;
cin&gt;&gt;n;
for(i=1;i&lt;=n;i++)
{
result*=i;
}
cout&lt;&lt;result;
} PostVer 0

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3058218005qqcom • 2021-03-30 23:29:26
#include&lt;iostream&gt;
using namespace std;
int main(void)
{
int i, p=1;
for(i=1;i&lt;=20;i++){
p=p*i;
}
cout&lt;&lt;p;
} PostVer 0

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3218825920qqcom • 2021-03-31 19:49:44
#include&lt;stdio.h&gt;
void main()
{
int t=1;
int s=0;
for(int i=1;i&lt;=20;i++)
{
t=t*i;
s=s+t
printf("i=%d时,s=%d
",i,s);
}
printf("%d",s);
} PostVer 0

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nintendolinkfoxmailcom • 2021-04-01 00:24:09
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2287245796qqcom • 2021-04-01 15:57:14
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//阶乘 20及以内
#include&lt;stdio.h&gt;
long long fac(int a)
{
int i;
long long s=1;
for(i=2;i&lt;=a;i++)
{
s*=i;
}
return s;
}

int main()
{
int m;
printf("20!=%lld
",fac(20));
return 0;
} PostVer 0

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wx287_oz26ftyeszxunhjb6ehly8qq5vdi • 2021-04-02 20:15:09
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387940240qqcom • 2021-04-03 08:47:25
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1498139310qqcom • 2021-04-03 16:55:55
<a href="http://www.yvsou.com/wp-content/uploads/sites/30/2021/04/SharedScreenshot.jpg"><img class="alignnone size-medium wp-image-9448" src="http://www.yvsou.com/wp-content/uploads/sites/30/2021/04/SharedScreenshot-300x146.jpg" alt="" width="300" height="146" /></a>

<a href="http://www.yvsou.com/wp-content/uploads/sites/30/2021/04/SharedScreenshot.jpg">using namespace std;
#include&lt;iostream&gt;
long long Tired_ride(int n){
long long x=1;
for(int i=1;i&lt;=n;i++){
x*=i;
}
return x;
}
int main(){
int n;
cin&gt;&gt;n;
long long x;
x=Tired_ride(n);
cout&lt;&lt;x&lt;&lt;endl;
return 0;

} </a> PostVer 0

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819354461qqcom • 2021-04-03 17:06:11
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wx287_oz26ftxkg9s80omiw6ifl9sdtr-s • 2021-04-03 17:29:29
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1772435220qqcom • 2021-04-04 14:01:59
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542236691qqcom • 2021-04-04 23:07:59
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wx287_oz26ftx_gczjz0jpscvm1-d3flry • 2021-04-05 20:23:49
#include &lt;stdio.h&gt; int main(){ int i,j=20,sum=1; for(i=1;i&lt;=j;i++){ sum*=i; } printf("%d",sum); } PostVer 0

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981193371qqcom • 2021-04-05 21:34:11
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zboa6023gmailcom • 2021-04-06 02:18:01
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rababboug69gmailcom • 2021-04-06 07:04:40
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2955836006qqcom • 2021-04-06 07:58:35
<p style="text-align: right;">#include  &lt;iostream&gt;  using namespace  std; int main() {</p>
<p style="text-align: right;">long long s=1, n=1;  for(n=1;n&lt;=20;n++) { s*=n;</p>

<ol>
<li style="text-align: right;">cout&lt;&lt;s&lt;&lt;endl;}</li>
</ol>
} PostVer 0

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2394773179qqcom • 2021-04-06 08:10:19
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2653815589qqcom • 2021-04-12 22:10:34
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wx287_oz26ft_ppvmz0yhrwncdglpjyuum • 2021-04-17 18:42:12
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1115727260qqcom • 2021-04-18 11:36:20
#include&lt;iostream&gt;
using namespace std;
double N=20;
double i;
double s=1;
int main() {
for (i = 1; i &lt;= N; i++) {
s = s * i;
}
cout &lt;&lt; s &lt;&lt; endl;
return 0;
} PostVer 0

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2848519344qqcom • 2021-04-19 23:55:59
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wx287_oz26ft4i1taklosxq83xveqlblcc • 2021-05-05 21:15:59
#include&lt;iostream&gt;

#include&lt;string.h&gt;

#include&lt;malloc.h&gt;

using namespace std;

int main(){

long long int result=1,n,i;

cin&gt;&gt;n;

for(i=1;i&lt;=n;i++)

result*=i;

cout&lt;&lt;result ;

return 0;

} PostVer 0

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1525693772qqcom • 2021-05-13 15:46:48
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