Bài 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 

  if a[i] mod 2<>0 then write(a[i]:4);

readln;

end.

Bài 2: 

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.

Bài 3: 

uses crt;

var a:array[1..100]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 2<>0 then t:=t+a[i];

writeln(t);

readln;

end.

#include <bits/stdc++.h>

using namespace std;

long long a[100],n,i,ln,nn,vt1,vt2;

int main()

{

cin>>n;

for (i=1; i<=n; i++) cin>>a[i];

ln=a[1];

nn=a[1];

for (i=1; i<=n; i++)

{

ln=max(ln,a[i]);

nn=min(nn,a[i]);

}

cout<<ln<<" "<<nn;

return 0;

}

Var n,i,vtl,vtn,so max,min:integer;

Begin

Write('Nhap so luong so = ');readln(n);

vtl:=0;

vtn:=0;

max:=-32768;

min:=32767;

For i:=1 to n do

Begin

Write('Nhap vao so thu ',i);readln(so);

If so > max then

Begin

Max:=so;

vtl:=i;

End;

If so < min then

Begin

Min:=so;

vtn:=i;

End;

Writeln('So lon nhat la ',max,' tai vi tri thu ',i);

Write('So nho nhat la ',min,' tai vi tri thu ',i);

Readln;

End.

a) var a:array[1..1000] of integer;

i,k:integer;

p:longint;

begin

write('k = ');readln(k);

p:=1;

for i:=1 to k do

begin

write('Nhap so thu ',i,' = ');readln(a[i]);

if a[i]<30 then p:=p*a[i];

end;

write('Tich la ',p);

readln

end.

b) 

var a:array[1..1000] of integer;

i,k:integer;

s:longint;

begin

write('k = ');readln(k);

for i:=1 to k do

begin

write('Nhap so thu ',i,' = ');readln(a[i]);

if a[i]<100 then s:=s+a[i];

end;

write('Tong la ',s);

readln

end.

#include <bits/stdc++.h>

using namespace std;

long long a[1000],i,n,x;

int main()

{

cin>>n;

for (i=1; i<=n; i++) cin>>a[i];

sort(a+1,a+n+1);

for (i=1; i<=n; i++)

{

int x=sqrt(a[i]);

if (x*x==a[i]) 

{

cout<<x;

return 0;

}

}

cout<<"Ko co so chinh phuong trong day";

return 0;

}

uses crt;
var x，i，max，n，dem，dem1，dem2，dem3，t，t1:integer;
a，b，c，d，e:array[-32000..32000]of integer;
tbca，tbcd:real;
begin
clrscr;
write(‘n=’); readln(n);
for i:=1 to n do
begin
write(‘a[‘，i，’]=’); readln(a[i]);
inc(b[a[i]]);
end;
{———————————-cau-a—————————-}
max:=0;
for i:=1 to n do
if max<b[a[i]] then
begin
max:=b[a[i]];
x:=a[i];
end;
writeln(‘phan tu co so lan xuat hien nhieu nhat trong mang la: ‘，x);
{——————————–cau-b——————————-}
dem:=0;
for i:=1 to n do
if a[i]>=0 then
begin
dem:=dem+1;
c[dem]:=a[i];
end;
dem1:=0;
for i:=1 to dem do
if trunc(sqrt(c[i]))=sqrt(c[i]) then inc(dem1);
writeln(‘so luong so chinh phuong trong day la: ‘，dem1);
{——————————–cau-c—————————–}
dem2:=0;
dem3:=0;
for i:=1 to n do
begin
if a[i]>0 then
begin
inc(dem2);
d[dem2]:=a[i];
end;
if a[i]<0 then
begin
inc(dem3);
e[dem3]:=a[i];
end;
end;
t:=0;
t1:=0;
for i:=1 to dem2 do
t:=t+d[i];
tbcd:=t/dem2;
for i:=1 to dem3 do
t1:=t1+e[i];
tbca:=t1/dem3;
writeln(‘trung binh cong cac so am la: ‘，tbca:4:2);
writeln(‘trung binh cong cac so duong la: ‘，tbcd:4:2);
readln;
end.

Câu 1: 

uses crt;

var a:array[1..100]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 

  t:=t+a[i];

writeln(t);

readln;

end.

Câu 2: 

uses crt;

var a:array[1..100]of integer;

i,n,x,dem,kt:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

  begin

write('A[',i,']='); readln(a[i]);

end;

write('Nhap x='); readln(x);

kt:=0;

dem:=0;

for i:=1 to n do 

if a[i]=x then 

begin

kt:=1;

write(i:4);

inc(dem);

end;

if kt=0 then writeln('Khong co ',x,' trong day');

writeln(x,' xuat hien ',dem,' lan trong day');

readln;

end.

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.

program tongduong;

uses crt;

var a:array[1..100] of integer;n,i,s:integer;

begin

clrscr;

s:=0;

writeln('nhap do dai cua day');readln(n);

for i:=1 to n do begin writeln('a[',i,']= ');readln(a[i]); end;

for i:=1 to n do if a[i] mod 2 = 0 then s:=s+a[i];

write(' Tong cac so duong trong day la',s);

readln

end.

Bạn the pie mới có lệnh nhập độ dài của dãy còn chưa có lệnh nhập các phần tử trong dãy nhé :)))

uses crt;

var a:array[1..249]of integer;

i,n,t,dem:integer;

begin

clrscr;

repeat

write('Nhap n='); readln(n);

until (0<n) and (n<250);

uses crt;

var i,n:integer;

      s:longint;

begin

write('nhap n:');readln(n);

for i:=1 to n do if i mod 2=0 then s:=s+i;

write('tong cac phan tu chan trong day la:',s);

readln;

end.

c: 

#include <bits/stdc++.h>

using namespace std;

long long a[1000],n,i;

int main()

{

cin>>n;

for (i=1; i<=n; i++) cin>>a[i];

for (i=1; i<=n; i++)

if (a[i]%2==0) cout<<a[i]<<" ";

return 0;

}

d: 

#include <bits/stdc++.h>

using namespace std;

long long a[1000],n,i,nn;

int main()

{

cin>>n;

for (i=1; i<=n; i++) cin>>a[i];

nn=a[1];

for (i=1; i<=n; i++) nn=min(nn,a[i]);

cout<<nn;

return 0;

}

uses crt;

var a:array[1..100]of integer;

i,n,t:integer;

begin

clrscr;

readln(n);

for i:=1 to n do readln(a[i]);

t:=0;

for i:=1 to n do 

if a[i]>0 then t:=t+a[i];

writeln(t);

readln;

end.