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Var i,n:integer;
E:real;
Begin
Write('Nhap n = ');readln(n);
E:=1;
For i:=2 to n do
Begin
E:=E*i;
i:=i+2;
End;
Write('E = ',E:15:0);
Readln;
End.
Bài 1:
uses crt;
var n,i,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
i:=1;
while i<=n do
begin
s:=s+i;
inc(i);
end;
writeln('Tong cac so trong khoang tu 1 den ',n,' la: ',s);
readln;
end.
Bài 2:
uses crt;
var n,i,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
i:=1;
while i<=n do
begin
s:=s+i;
i:=i+2;
end;
writeln('Tong cac so le trong khoang tu 1 den ',n,' la: ',s);
readln;
end.
Var a:array:[1..1000] of integer;
i,n,max:integer;
Begin
Write('Nhap so luong phan tu n = ');readln(n);
For i:=1 to n do
Begin
Write('Nhap diem thu ',i,' = ');readln(a[i]);
End;
Write('Cac diem vua nhap la: ');
For i:=1 to n do
Write(a[i]:8);
writeln;
max:=a[1];
For i:=2 to n do
if a[i] > max then max:=a[i];
write('So lon nhat la ',max);
Readln
End.
#include <bits/stdc++.h>
using namespace std;
long long i,n;
double s;
int main()
{
cin>>n;
s=0;
for (i=1; i<=n; i++)
s=s+((1*1.0)/(2*(i*1.0+1*1.0)));
cout<<fixed<<setprecision(2)<<s;
return 0;
}
uses crt;
var a:array[1..100]of integer;
i,n:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
for i:=1 to n do
if a[i] mod 2=0 then write(a[i]:4);
readln;
end.
uses crt;
var a:array[1..1000000] of longint;
n,i:longint;
begin
clrscr;
write('Nhap so luong phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap phan tu thu ',i,': '); readln(a[i]);
end;
write('Cac so chan: ');
for i:=1 to n do if a[i] mod 2=0 then write(a[i],' ');
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long i,n,s;
int main()
{
cin>>n;
s=1;
for (i=1; i<=n; i++) if (i%2==0) s*=i;
cout<<s;
return 0;
}
Bài 1:
uses crt;
var a:array[1..100]of integer;
i,n,min:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
min:=a[1];
for i:=1 to n do
if min>a[i] then min:=a[i];
writeln(min);
readln;
end.
Bài 2:
uses crt;
var a:array[1..100]of integer;
i,n,max:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
max:=a[1];
for i:=1 to n do
if max<a[i] then max:=a[i];
writeln(max);
readln;
end.
Bài 1:
Program HOC24;
var a: array[1..1000] of integer;
i,n,d: integer;
begin
write('Nhap so phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(a[i]);
end;
for i:=1 to n do if (a[i]<0) and (a[i] mod 2=0) then d:=d+1;
write('Co ',d,' so nguyen am chan trong day so');
readln
end.
Bài 2:
Program HOC24;
var a: array[1..1000] of integer;
i,n: integer;
t: longint;
begin
write('Nhap so phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(a[i]);
end;
t:=0;
for i:=1 to n do if a[i] mod 5=0 then t:=t+a[i];
write(Tong la: ',t);
readln
end.
Bài 1:
uses crt;
var n,i:integer;
s:real;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
for i:=1 to n do
s:=s+1/(2*i+1);
writeln(s:4:2);
readln;
end.