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Bài 1:

const fi='input.txt';

fo='output.txt';

var f1,f2:text;

a,b,s:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,a,b);

s:=a*b;

writeln(f2,s);

close(f1);

close(f2);

end.

Bài 2:

const fi='dulieu.txt';

fo='ketqua.txt';

var f1,f2:text;

a,b:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,a,b);

if a>b then writeln(f2,a)

else if b>a then writeln(f2,b)

else writeln(f2,' khong co so lon nhat trong hai so');

close(f1);

close(f2);

end.

19 tháng 12 2021

#include <bits/stdc++.h>

using namespace std;

long long a,b,c,d;

int main()

{

freopen("input.txt","r",stdin);

freopen("output.txt","w",stdout);

cin>>a>>b>>c>>d;

cout<<a+b+c+d;

return 0;

}

7 tháng 4 2019

Var f1, f2: text;

  Tong, m, n, i: integer;

Begin

  assign(f1, ‘DULIEU.TXT’);

  reset(f1);

  assign(f2, ‘KETQUA’);

  rewrite(f2);

  Tong;= 0;

  read(f1, m, n);

  for i:= m to n do

  if i mod 2 = 0 then Tong:= Tong+i;

  write(f2, Tong);

  close(f1);

  close(f2);

End.

const fi='dulieu.txt';

fo='ketqua.txt';

var f1,f2:text;

m,n,i,t:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,m,n);

t:=0;

for i:=m to n do 

 if i mod 2=0 then t:=t+i;

writeln(f2,t);

close(f1);

close(f2);

end.

11 tháng 12 2018

Var f1, f2: text;

  Tong, m, n, i: integer;

Begin

  assign(f1, ‘DULIEU.TXT’);

  reset(f1);

  assign(f2, ‘KETQUA’);

  rewrite(f2);

  Tong;= 0;

  read(f1, m, n);

  for i:= m to n do

  if i mod 2 = 0 then Tong:= Tong+i;

  write(f2, Tong);

  close(f1);

  close(f2);

End.

25 tháng 6 2018

Var f1, f2: text;

  Tong, m, n, i: integer;

Begin

  assign(f1, ‘DULIEU.TXT’);

  reset(f1);

  assign(f2, ‘KETQUA’);

  rewrite(f2);

  Tong;= 0;

  read(f1, m, n);

  for i:= m to n do

  if i mod 2 = 1 then Tong:= Tong+i;

  write(f2, Tong);

  close(f1);

  close(f2);

End.

uses crt;

const fi='input.txt';

fo='output.txt';

var f1,f2:text;

a,b:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,a,b);

if (a=0) and (b=0) then writeln(f2,'Phuong trinh co vo so nghiem');

if (a<>0) then writeln(f2,-b/a:4:2);

if (a=0) and (b<>0) then writeln(f2,'Phuong trinh vo nghiem');

close(f1);

close(f2);

end.

23 tháng 4 2020

Program hotrotinhoc_hoc24;

const fi='C:\Input.txt';

fo='C:\Output.txt';

var f: text;

i,n: integer;

procedure ip;

begin

assign(f,fi);

reset(f);

read(f,n);

close(f);

end;

procedure out;

begin

assign(f,fo);

rewrite(f);

for i:=1 to n do write(f,i,' ');

close(f);

end;

begin

ip;

out;

end.

const fi='input.txt';

fo='output.txt';

var f1,f2:text;

i,n:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,n);

for i:=1 to n do

write(f2,i:4);

close(f1);

close(f2);

end.

const fi='input.txt';
fo='output.txt';
var f1,f2:text;
n,i,dem:integer;
a:array[1..100]of integer;
{------------------------chuong-trinh-con-1----------------------------}
procedure docfile;
begin
assign(f1,fi); reset(f1);
readln(f1,n);
for i:=1 to n do
read(f1,a[i]);
close(f1);
end;
{------------------------chuong-trinh-con-2----------------------------}
procedure xuatfile;
begin
assign(f2,fo); rewrite(f2);
dem:=0;
for i:=1 to n do
if a[i] mod 5=0 then inc(dem);
writeln(f2,dem);
close(f2);
end;
{-------------------------chuong-trinh-chinh-------------------------}
begin
docfile;
xuatfile;
end.

const fi='dulieu.txt';     

fo='ketqua.txt';

var f1,f2:text;   

a,b,c,d:array[1..100]of integer;   

i,n,dem,dem1:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

n:=0;

while not eof(f1) do 

begin     

n:=n+1;     

readln(f1,a[n],b[n]); 

end;

dem:=0;

dem1:=0;

for i:=1 to n do 

if a[i]>b[i] then     

begin       

inc(dem);       

inc(dem1);       

c[dem]:=a[i];       

d[dem]:=b[i];     

end 

else begin         

inc(dem);         

inc(dem1);         

c[dem]:=b[i];         

d[dem]:=a[i];       

end;

for i:=1 to dem do 

write(f2,c[i]:4);

writeln(f2);

for i:=1 to dem1 do 

write(f2,d[i]:4);

close(f1);

close(f2);

end.