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![](https://rs.olm.vn/images/avt/0.png?1311)
program BaiToanMang;
var
A: array[1..100] of integer;
N, i, demChan, tongLeChia3: integer;
begin
write('Nhap so phan tu cua mang: ');
readln(N);
writeln('Nhap cac phan tu cua mang: ');
for i := 1 to N do
begin
write('a[', i, ']= ');
readln(A[i]);
end;
tongLeChia3 := 0;
for i := 1 to N do
begin
if (A[i] mod 2 = 1) and (A[i] mod 3 = 0) then
begin
tongLeChia3 := tongLeChia3 + A[i];
end;
end;
writeln('Tong cac so le chia het cho 3: ', tongLeChia3);
demChan := 0;
for i := 2 to N do
begin
if (A[i] mod 2 = 0) and (i mod 2 = 1) then
begin
demChan := demChan + 1;
end;
end;
writeln('So phan tu chan o vi tri le: ', demChan);
writeln('Cac so chan chia het cho 5: ');
for i := 1 to N do
begin
if (A[i] mod 2 = 0) and (A[i] mod 5 = 0) then
begin
write(A[i], ' ');
end;
end;
end.
ko bt đúng ko ko dùng pascal nhiều
![](https://rs.olm.vn/images/avt/0.png?1311)
Mình chỉ viết chương trình chính thôi, còn chương trình con bạn tự viết nhé
uses crt;
var a:array[1..100]of integer;
i,n,t,t1,t2:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
edn;
t:=0;
for i:=1 to n do
t:=t+a[i];
writeln(t);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
long long x,i,n,t;
int main()
{
cin>>n;
t=0;
for (i=1; i<=n; i++)
{
cin>>x;
t=t+x;
}
cout<<t;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
long long n,i,t,dem,x;
int main()
{
cin>>n;
t=0;
dem=0;
for (i=1; i<=n; i++)
{
cin>>x;
t=t+x;
if (x%2==0) dem++;
}
cout<<t<<endl;
cout<<dem;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 1:
uses crt;
var a:array[1..200]of integer;
i,n,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
t:=0;
for i:=1 to n do
if a[i] mod 5=0 then t:=t+a[i];
writeln('Tong cac so chia het cho 5 la: ',t);
readln;
end.
Bài 2:
uses crt;
var st:string;
d,i:integer;
begin
clrscr;
write('Nhap xau:'); readln(st);
d:=length(st);
for i:=1 to d do
if st[i]=#32 then delete(st,i,1);
writeln(st);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
long long a[1000],i,n,t,dem;
int main()
{
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
t=0;
dem=0;
for (i=1; i<=n; i++)
if ((a[i]>0) and (i%2==1))
{
t+=a[i];
dem++;
}
cout<<fixed<<setprecision(2)<<(t*1.0)/(dem*1.0);
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
long long a[1000],i,n,ln,t,k,nn;
int main()
{
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
ln=LLONG_MIN;
for (i=1; i<=n; i++) ln=max(ln,a[i]);
cout<<"So lon nhat la: "<<ln<<endl;
cout<<"VI tri la: ";
for (i=1; i<=n; i++) if (ln==a[i]) cout<<i<<" ";
cout<<endl;
t=0;
for (i=1; i<=n; i++)
if (a[i]>0) t+=a[i];
cout<<"Tong cac so duong la: "<<t<<endl;
cin>>k;
for (i=1; i<=n; i++)
if (a[i]%k==0) cout<<a[i]<<" ";
cout<<endl;
nn=LLONG_MAX;
for (i=1; i<=n; i++)
nn=min(nn,a[i]);
cout<<nn;
return 0;
}