giaithua.cpp

examples C,c++ codes programs

#include<iostream.h>
#include<conio.h>
#include<iomanip.h>
long giaithua( int n)
{
int i;
long gt=1;
for(i=1;i<=n;i++)
gt=gt*i;
return gt;
}
void main()
{
int n;
do
{
cout<<"\nnhap n = ";
cin>>n;
}
while (n<2||n>100);
cout<<n<<"! = "<<giaithua(n); 
getch();
}