Viết chương trình tính giai thừa của n với n được nhập từ bàn phím
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
long long n,i,s=1;
int main()
{
cin>>n;
for (int i=1; i<=n; i++)
s=s*i;
cout<<s;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
Câu 1:
program Tinhtong:
var
n, i, sum: integer;
begin
write('Nhap n: ');
readln(n);
sum := 0;
for i := 2 to n do
begin
if i mod 2 = 0 then
begin
sum := sum + i;
end;
end;
writeln('Tong cac so chan tu 2 toi ', n, ' la ', sum);
readln;
end.
Câu 2:
program Tinhtong:
var
n, i, sum: integer;
begin
write('Nhap n: ');
readln(n);
sum := 0;
for i := 1 to n do
begin
if i mod 2 = 1 then
begin
sum := sum + i;
end;
end;
writeln('Tong cac so le tu 1 toi ', n, ' la ', sum);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
1:
uses crt;
var n,i,t:integer;
begin
clrscr;
readln(n);
t:=0;
for i:=1 to n do
t:=t+i*i;
write(t);
readln;
end.
2
program bt2;
var i,n,t:integer;
begin
readln(n);
s:=0;
for i:=1 to n do
if i mod 2 = 1 then s:=s+i;
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
Câu 6:
uses crt;
var n,i:integer;
begin
clrscr;
readln(n);
for i:=1 to n do
if n mod i=0 then write(i:4);
readln;
end.
5:
uses crt;
var n,i,dem:integer;
begin
clrscr;
readln(n);
dem:=0;
for i:=0 to n do
if i mod 2=1 then
begin
write(i:4);
dem:=dem+1;
end;
writeln;
writeln(dem);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
program TongN;
var
n, i, tong: integer;
begin
tong := 0;
writeln('Nhap so nguyen duong N: ');
readln(n);
i := 0;
while i < n do
begin
i := i + 1;
tong := tong + i;
end;
writeln('Tong cac so tu 1 den ', n, ' la ', tong);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
Câu 1:
uses crt;
var n,i:integer;
s:real;
begin
clrscr;
write('Nhap n='); readln(n);
s:=1;
for i:=1 to n do
s:=s*i;
writeln(s);
readln;
end.
Câu 2:
uses crt;
var t,i,n:integer;
begin
clrscr;
write('Nhap n='); readln(n);
t:=0;
for i:=1 to n do
t:=t+i;
writeln(t);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
var i,n,so:integer;
s:longint;
begin
write('Nhap N = ');readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,' = ');readln(so);
s:=s+so;
end;
write('Tong la ',s);
readln;
end.
Giai thừa của n: T=1*2*3...*n
program viet_chuong_trinh;
uses crt;
var
i,n,T:integer;
begin
clrscr;
writeln('Moi nhap n = '); readln(n);
T:=1;
for i:=1 to n do T:=T*i;
write(T); readln;
end.
uses crt;
var n:integer;
{-----------------------------------------}
procedure giaithua(var a:integer);
var i:integer;
gt:longint;
begin
gt:=1;
for i:=1 to a do
gt:=gt*i;
write(gt);
end;
{-----------------------------------------}
begin
clrscr;
write('nhap n='); readln(n);
giaithua(n);
readln;
end.