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Program bt_3;
Uses crt;
Var Tong, n, i: integer;
Begin
Clrscr;
Writeln(‘nhap n=’);
Readln (n);
Tong:=0;
For i:=1 to n do
If I mod 2 = 0 then Tong:= Tong+i;
Writeln(‘Tong la:’,Tong);
Readln
End.
Program bt_3;
Uses crt;
Var Tong, n, i: integer;
Begin
Clrscr;
Writeln(‘nhap n=’);
Readln (n);
Tong:=0;
For i:=1 to n do
If I mod 5 = 0 then Tong:= Tong+i;
Writeln(‘Tong la:’,Tong);
Readln
End.
Program bt_3;
Uses crt;
Var Tong, n, i: integer;
Begin
Clrscr;
Writeln(‘nhap n=’);
Readln (n);
Tong:=0;
For i:=1 to n do
If I mod 3 = 0 then Tong:=Tong+i;
Writeln(‘Tong la:’,Tong);
Readln
End.
#include <bits/stdc++.h>
using namespace std;
long long m,n,i,t;
int main()
{
cin>>m>>n;
t=0;
for (i=m; i<=n; i++)
if (i%2==1) t=t+i;
cout<<t;
return 0;
}
uses crt;
var a:array[1..200]of integer;
i,n,tbc,dem:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
writeln('Cac so duong chan la: ');
for i:=1 to n do
if (a[i] mod 2=0) and (a[i]>0) then write(a[i]:4);
writeln;
tbc:=0;
dem:=0;
for i:=1 to n do
if (-1000<=a[i]) and (a[i]<=1000) then
begin
tbc:=tbc+a[i];
dem:=dem+1;
end;
writeln('Trung binh cong cac phan tu co gia tri trong pham vi tu -1000 den 1000 la: ',tbc/dem:4:2);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long i,n,dem;
int main()
{
cin>>n;
dem=0;
for (i=1; i<=n; i++)
if (i%2==1 && i%5==0) dem++;
cout<<dem;
return 0;
}
Bài 2:
#include <bits/stdc++.h>;
using namespace std;
int main();
{
long m,n;
cout<<"Nhap m="; cin>>m;
cout<<"Nhap n="; cin>>n;
cout<<m*n-2;
return 0;
}
Program bt_3;
Uses crt;
Var Tong, n, i: integer;
Begin
Clrscr;
Writeln(‘nhap n=’);
Readln (n);
Tong:=0;
For i:=1 to n do
If I mod 2 = 1 then Tong:= Tong+i;
Writeln(‘Tong la:’,Tong);
Readln
End.