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with open('songuyen.txt', 'r') as f:
with open('ketqua.txt', 'w') as g:
for line in f:
numbers = line.split()
for number in numbers:
if int(number) % 2 == 0:
g.write(number + '\n')
const fi='songuyen.txt';
fo='kluan.txt';
var f1,f2:text;
n:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
if n mod 2=0 then writeln(f2,'La so chan')
else writeln(f2,'La so le');
close(f1);
close(f2);
end.
a)
Input: Số nguyên dương N, dãy số a1,a2,a3,...,an
Output: Tổng các số chẵn nhỏ hơn hoặc bằng N
b)
Program HOC24;
var i,n: integer;
t: longint;
a: array[1..1000] of integer;
f1,f2: text;
const fi='SONGUYEN.TXT';
fo='SOCHAN.TXT';
begin
assign(f1,fi);
assign(f2,fo);
reset(f1);
rewrite(f2);
readln(f1,n);
for i:=1 to n do read(f1,a[i]);
for i:=1 to n do if (a[i] mod 2=0) and (a[i]<=n) then
begin
write(f2,a[i],' ');
t:=t+a[i];
end;
writeln(f2);
write(f2,t);
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.
uses crt;
const fi='dayso.txt';
fa='tong.txt';
fb='kq.txt';
var f1,f2,f3:text;
a:array[1..100]of integer;
n,i,t,kt,j:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fa); rewrite(f2);
assign(f3,fb); rewrite(f3);
n:=0;
while not eof(f1) do
begin
n:=n+1;
readln(f1,a[n]);
end;
{--------------------------cau-a--------------------------}
t:=0;
for i:=1 to n do
t:=t+a[i];
writeln(f2,'tong cua day so la: ',t);
{--------------------------cau-b--------------------------}
writeln(f3,'cac so chan trong day la: ');
for i:=1 to n do
if a[i] mod 2=0 then write(f3,a[i]:4);
writeln(f3);
writeln(f3,'cac so le trong day la: ');
for i:=1 to n do
if a[i] mod 2<>0 then write(f3,a[i]:4);
{--------------------------cau-c--------------------------}
writeln('cac so nguyen to trong day la: ');
for i:=1 to n do
if a[i]>1 then
begin
kt:=0;
for j:=2 to a[i]-1 do
if a[i] mod j=0 then kt:=1;
if kt=0 then write(a[i]:4);
end;
close(f1);
close(f2);
close(f3);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long i,a[100],n;
int main()
{
freopen("songuyen.txt","r",stdin);
n=20;
for (i=1; i<=n; i++) cin>>a[i];
for (i=1; i<=n; i++) cout<<a[i]<<" ";
return 0;
}
Câu 1:
const fi1='nguyen1.inp';
fi2='nguyen2.inp';
fo='songuyen.inp';
var f1,f2,f3:text;
a:array[1..10000]of integer;
i,dem:integer;
begin
assign(f1,fi1); reset(f1);
assign(f2,fi2); reset(f2);
assign(f3,fo); rewrite(f3);
dem:=0;
while not eof(f1) do
begin
inc(dem);
read(f1,a[dem]);
end;
while not eof(f2) do
begin
inc(dem);
read(f2,a[dem]);
end;
for i:=1 to dem do
write(f3,a[i]:4);
close(f1);
close(f2);
close(f3);
end.
Câu 2:
uses crt;
const fi='vanban.txt';
var f1:text;
st:array[1..255]of string;
dem:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
dem:=0;
while not eof(f1) do
begin
inc(dem);
readln(f1,st[dem]);
end;
writeln('So dong cua tep ',fi,' la: ',dem);
close(f1);
readln;
end.
Câu 3:
const fi='nguon.txt';
fo='dich.txt';
var f1,f2:text;
st:array[1..255]of string;
i,dem:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
dem:=0;
while not eof(f1) do
begin
inc(dem);
readln(f1,st[dem]);
end;
for i:=1 to dem do
writeln(f2,st[i]:4);
close(f1);
close(f2);
end.
Câu 4:
const fi='dulieu.int';
fo='sochan.out';
var f1,f2:text;
a:array[1..255]of integer;
i,dem:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
dem:=0;
while not eoln(f1)do
begin
inc(dem);
read(f1,a[dem]);
end;
for i:=1 to dem do
if a[i] mod 2=0 then write(f2,a[i]:4);
close(f1);
close(f2);
end.
Câu 5:
const fi='dulieu.int';
fo='dulieu.out';
var f1,f2:text;
a:array[1..255]of integer;
i,n,tam,j:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
for i:=1 to n do
read(f1,a[i]);
for i:=1 to n-1 do
for j:=i+1 to n do
if a[i]<a[j] then
begin
tam:=a[i];
a[i]:=a[j];
a[j]:=tam;
end;
for i:=1 to n do
write(f2,a[i]:4);
close(f1);
close(f2);
end.
uses crt;
const fi='input.txt';
var f1:text;
a,b,c: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(f1,a[n],b[n],c[n]);
end;
for i:=1 to n do
writeln('Tong cua dong ',i,' la: ',a[i]+b[i]+c[i]:4:2);
for i:=1 to n do
writeln('Trung binh cong cua dong ',i,' la: ',(a[i]+b[i]+c[i])/3:4:2);
close(f1);
readln;
end.
const fi='songuyen.txt';
fo='sochan.txt';
var f1,f2:text;
a:array[1..100]of integer;
i,dem:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
dem:=0;
while not eof(f1) do
begin
inc(dem);
readln(f1,a[dem]);
end;
for i:=1 to dem do
if a[i] mod 2=0 then write(f2,a[i]:4);
close(f1);
close(f2);
end.