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![](https://rs.olm.vn/images/avt/0.png?1311)
program timtich;
uses crt;
var i,n:integer;
tich:longint;
a:array[1..100]of integer;
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]:4);
tich:=1;
writeln;
for i:=1 to n do
if a[i] mod 2=0 then tich:=tich*a[i];
writeln('tich ca phan tu chan cua mang la:',tich);
readln;
end.
program timtong;
uses crt;
var i,n:integer;
tong:longint;
a:array[1..100]of integer;
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]:4);
tong:=0;
writeln;
for i:=1 to n do
if a[i] mod 2=0 then tong:=tong+a[i];
writeln('tong cac phan tu chan cua mang la:',tong);
tong:=0;
writeln;
for i:=1 to n do
if a[i] mod 2=1 then tong:=tong+a[i];
writeln('tong cac phan tu le cua mang la:',tong);
readln;
end.
Bài 1:
uses crt;
var a:array[1..100]of integer;
i,n,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
s:=1;
for i:=1 to n do
if a[i] mod 2=0 then s:=s*a[i];
writeln(s);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 1:program sothuc;
uses crt;
var a:array[1..10] of real;s,i,j:real;
begin
s:=0;
for i:=1 to 10 do begin writeln('A[',i,']=');readln(a[i]); end;
for i:=1 to 10 do if a[i]<0 then
for j:=1 to 10 do
begin a[j]:=sqr(a[i]); s:=s+a[j]; end;
writeln('tong binh phuong cac so am la: ',s:2:2); readln;
end. (Khi nào mình kiểm tra chạy lại trên phần mềm rồi sửa lại nếu sai nhé)
Bài 2:
program soduong;
uses crt;
var a:array[1..100] of integer;s,i,n:integer;
begin
clrscr;
writeln('nhap do dai cua day');readln(n);
for i:=1 to n do begin
writeln('a[',i,']=');readln(a[i]);
if a[i] mod 2 = 0 then s:=s+a[i] end;
writeln('tong so duong trong day la',s:2:0);readln
end.
Bài 3: các số dương mà là số lẻ là sao thế bạn????
![](https://rs.olm.vn/images/avt/0.png?1311)
program TongChanLe;
var
n,i, chans, les: integer; a: array[1..100] of integer;
begin
chans := 0;
les := 0;
write('Nhap n: ');
readln(n);
for i:=1 to n do
begin
write('Nhap so thu ', i, ': ');
readln(a[i]);
if a[i] mod 2 = 0 then
chans := chans + a[i]
else
les := les + a[i];
end;
writeln('Tong cac so chan la: ', chans);
writeln('Tong cac so le la: ', les);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
Program HOC24;
var i,n: integer;
t1,t2: longint;
begin
write('Nhap so phan tu cua day: '); readln(a[i]);
for i:=1 to n do
begin
write('Nhap phan tu thu ',i,': '); readln(a[i]);
end;
t1:=0; t2:=0;
for i:=1 to n do if a[i] mod 2=0 then t1:=t1+a[i] else t2:=t2+a[i];
writeln('Tong cac so chan la: ',t1);
write('Tong cac so le la: ',t2);
readln
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
1. Uses crt;
var n,i: integer;
begin clrscr;
readln(n);
for i:=1 to n do write(i:3);
readln;
end.
2. Uses crt;
var n,i: integer;
begin clrscr;
readln(n);
for i:=1 to n do if(i mod 2 = 0) then write(i:3);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
a)
uses crt;
var i,n:integer;
begin
clrscr;
repeat
write('Nhap n='); readln(n);
until n<100;
if n mod 2=0 then
begin
for i:=0 to n do
if i mod 2=0 then write(i:4);
end
else writeln(n,' khong la so chan');
readln;
end.
b)
uses crt;
var i,n:integer;
begin
clrscr;
repeat
write('Nhap n='); readln(n);
until n<100;
if n mod 2=1 then
begin
for i:=1 to n do
if i mod 2=1 then write(i:4);
end
else writeln(n,' khong la so le');
readln;
end.
![](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 2:
uses crt;
var a:array[1..100]of integer;
i,n,tb:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
tb:=0;
for i:=1 to n do
tb:=tb+a[i];
writeln(tb/n:4:2);
readln;
end.
program PrintEvenOdd;
var
num, even, odd, i: Integer;
begin
even := 0;
odd := 0;
for i := 1 to 5 do
begin
writeln('Nhap so thu ', i, ': ');
readln(num);
if num mod 2 = 0 then
even := even + 1
else
odd := odd + 1;
end;
writeln('Tong chan: ', even);
writeln('Tong le: ', odd);
end.
Var a:array[1..5] of integer;
i:integer;
Begin
For i:=1 to 5 do
Begin
Write('Nhap so thu ',i,' = ');readln(a[i]);
End;
Writeln('Cac so chan la ');
For i:=1 to 5 do
If a[i] mod 2 = 0 then write(a[i]:8);
Writeln;
Write('Cac so le la ');
For i:=1 to 5 do
If a[i] mod 2 <> 0 then write(a[i]:8);
Readln
End.