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.

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.

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.

uses crt;
var a: array[1..100] of integer;
i: longint;
begin
clrscr;
for i:=1 to 20 do readln(a[i]);
writeln('day vua nhap la:');
for i:=1 to 20 do write(a[i],' ');
readln
end.

uses crt;

var a:array[1..20]of integer;

i,n:integer;

begin

clrscr;

n:=20;

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.

Câu 1: 

uses crt;

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

i,n:integer;

t:real;

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:4:2);

readln;

end.

Câu 2: 

uses crt;

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

i,n:integer;

t:real;

begin

clrscr;

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

for i:=1 to n do 

  begin

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

end;

t:=1;

for i:=1 to n do 

  t:=t*a[i];

writeln(t:4:2);

readln;

end.

1:

#include <bits/stdc++.h>

using namespace std;

long long n=10, a[10],i,nn;

int main()

{

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

nn=a[1];

for (i=2; i<=n; i++) nn=min(nn,a[i]);

cout<<nn;

return 0;

}

Uses crt;

var i,n: integer;

a: array[1..100] of longint;

begin clrscr;

readln(n);

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

writeln(a[i]:3);

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.

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.