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![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
const fi='songuyen.inp';
fo='songuyen2.out';
var a:array[1..100]of integer;
i,n,t1:integer;
f1,f2:text;
begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
for i:=1 to n do readln(f1,a[i]);
t1:=0;
for i:=1 to n do if a[i] mod 2<>0 then t1:=t1+a[i];
writeln(t1);
writeln(f2,t1);
for i:=1 to n do
if a[i] mod 2<>0 then write(a[i]:4);
close(f1);
close(f2);
readln;
end.
Viết chương trình đọc tệp a.txt chứa các số nguyên trên một dòng đưa kết quả tích các số ra màn hình
![](https://rs.olm.vn/images/avt/0.png?1311)
with open("a.txt", "r") as f:
numbers = list(map(int, f.readline().split()))
product = 1
for number in numbers:
product *= number
print("Tích các số trong file a.txt là:", product)
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
const fi='kiemtra.txt';
var f1:text;
a,b,c:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
readln(f1,a);
readln(f1,b);
readln(f1,c);
writeln((a+b)*(a+c)*(c+b));
close(f1);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
const fi='kiemtra.txt';
var f1:text;
a,b,c:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
readln(f1,a,b,c);
writeln((a+b)*(a+c)*(b+c));
close(f1);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
const fi='so.inp';
var f1:text;
a,b:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
while not eof(f1) do
begin
readln(f1,a,b);
writeln((a+b)/2:4:2);
end;
close(f1);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
Uses crt;
var f1,f2:text;
i,n,tong,tongchan,dem:integer;
tb:real;
Begin
clrscr;
Assign(f1,'DAYSO.txt');
Assign(f2,'KETQUA.txt');
reset(f1);dem:=0;tong:=0;tongchan:=0;
While Not EOF(f1) do
Begin
read(f1,i);
inc(tong,i);
If i mod 2 = 0 then
begin
inc(dem);
inc(tongchan,i);
end;
End;
tb:=tongchan/dem;
close(f1);
rewrite(f2);
writeln(f2,tong);
writeln(f2,tongchan);
writeln(f2,tb:0:2);
close(f2);
write(tong);
readln;
End.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
const fi='dulieu.dat';
var f1:text;
a,b,p,s:array[1..100]of real;
i,n:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
n:=0;
while not eof(f1) do
begin
n:=n+1;
readln(a[n],b[n]);
end;
for i:=1 to n do
begin
p[i]:=(a[i]+b[i])/2;
s[i]:=a[i]*b[i];
end;
for i:=1 to n do
writeln(p[i]:4:2,' ',s[i]:4:2);
close(f1);
readln;
end.
uses crt;
const fi='dulieu.txt';
var f1:text;
a,b,c,d:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
readln(f1,a,b,c,d);
writeln(a*b*c*d);
close(f1);
readln;
end.