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![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 1:
program in_phan_tu;
uses crt;
var n,i:longint;
a:array[1..100] of longint;
begin
clrscr;
write('nhap so n:');readln(n);
for i:=1 to n do
begin
write('nhap phan tu a[',i,']:');readln(a[i]);
end;
for i:=1 to n do
write(a[i]:3);
readln;
end.
Bài 2:
program tong_phan_tu;
uses crt;
var n,i,tong:longint;
a:array[1..100] of longint;
begin
clrscr;
write('nhap so n:');readln(n);
for i:=1 to n do
begin
write('nhap phan tu a[',i,']:');readln(a[i]);
end;
tong:=0;
for i:=1 to n do
tong:=tong+a[i];
writeln('tong cua day la:');
readln;
end.
Bài 3:
program tong_phan_tu_chan;
uses crt;
var n,i,tong:longint;
a:array[1..100] of longint;
begin
clrscr;
write('nhap so n:');readln(n);
for i:=1 to n do
begin
write('nhap phan tu a[',i,']:');readln(a[i]);
end;
tong:=0;
for i:=1 to n do
if a[i] mod 2=0 then tong:=tong+a[i];
writeln('tong cua day la:');
readln;
end.
Câu 1:
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
write(a[i]:4);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
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.
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
int main()
{
int n,A[100],dem,t;
cin>>n;
for (int i=1; i<=n; i++)
cin>>A[i];
dem=0; t=0;
for (int i=1; i<=n; i++)
if (A[i]%2==0) dem++;
else t+=A[i];
cout<<dem<<endl;
cout<<t;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
Câu 1:
Program HOC24;
var i,p: integer;
t: longint;
begin
write('Nhap P: '); readln(p);
t:=0;
for i:=1 to p do if i mod 2<>0 then t:=t+i;
write('Tong cac so le la: ',t);
readln
end.
![](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.