Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](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.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
const fi='dl.txt';
fo='soam.txt';
var f1,f2:text;
a:array[1..100]of integer;
i,n:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
n:=0;
while not eoln(f1) do
begin
n:=n+1;
read(f1,a[n]);
end;
for i:=1 to n do
begin
if a[i]>0 then writeln('Can bac hai cua ',a[i],' la: ',sqrt(a[i]):4:2)
else if a[i]<0 then write(f2,a[i]:4);
end;
close(f1);
close(f2);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
const fi='dl.txt';
fo='soam.txt';
var f1,f2:text;
a:array[1..100]of integer;
i,n:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
n:=0;
while not eoln(f1) do
begin
n:=n+1;
read(f1,a[n]);
end;
for i:=1 to n do
begin
if a[i]>0 then writeln('Can bac hai cua ',a[i],' la: ',sqrt(a[i]):4:2)
else if a[i]<0 then write(f2,a[i]:4);
end;
close(f1);
close(f2);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
string st;
int d,i,dem;
int main()
{
freopen("xau.inp","r",stdin);
freopen("xau.out","w",stdout);
cin>>st;
d=st.length();
dem=0;
for (i=0; i<=d-1; i++)
if (st[i]=='a') dem++;
cout<<dem;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
const fi='bt.txt';
fo='soam.txt';
var f1,f2:text;
a:array[1..100]of integer;
i,n:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
n:=0;
while not eoln(f1) do
begin
n:=n+1;
read(f1,a[n]);
end;
for i:=1 to n do
begin
if a[i]>0 then writeln('Can bac hai cua ',a[i],' la: ',sqrt(a[i]):4:2)
else if a[i]<0 then write(f2,a[i]:4);
end;
close(f1);
close(f2);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
const fi='dulieu.txt';
var f1:text;
a:array[1..100]of real;
t:real;
i,n:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
readln(f1,n);
for i:=1 to n do readln(f1,a[i]);
t:=0;
for i:=1 to n do t:=t+a[i];
writeln(t);
close(f1);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
long long n,i,x;
//chuongtrinhcon
bool ktnt(long long x)
{
if (x<2) return false;
for (int i=2; i*i<=x; i++)
if (x%i==0) return(false);
return true;
}
//chuongtrinhchinh
int main()
{
freopen("dl.dat","r",stdin);
freopen("kq.dat","w",stdout);
cin>>n;
dem=0;
for (i=1; i<=n; i++)
{
cin>>x;
if (ktnt(x)) dem++;
}
cout<<dem;
return 0;
}