#include <bits/stdc++.h>

using namespace std;

long long x,n,i,s;

int main()

{

cin>>n;

s=1;

for (i=1; i<=n; i++)

{

cin>>x;

if (x%5==0) s=s*x;

}

cout<<s;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

long long a[15],n,i,dem;

int main()

{

freopen("songuyen.inp","r",stdin);

freopen("ketqua.out","w",stdout);

cin>>n;

for (i=1; i<=n; i++) cin>>a[i];

dem=0;

for (i=1; i<=n; i++)

if (a[i]%3==0) dem++;

cout<<dem;

return 0;

}

có thể giúp mình làm kiểu pascal đc ko bn

#include <bits/stdc++.h>

using namespace std;

long long a[1000],i,n,t;

int main()

{

cin>>n;

for (i=1; i<=n; i++) cin>>a[i];

t=0;

for (i=1; i<=n; i++) t+=a[i];

cout<<t<<endl;

sort(a+1,a+n+1);

for (i=1; i<=n; i++) cout<<a[i]<<" ";

return 0;

}

Đề thiếu rồi bạn

uses crt;

const fi='xau.doc';

var st:string;

f1:text;

i,d:integer;

begin

clrscr;

assign(f1,fi); rewrite(f1);

readln(st);

d:=length(st);

delete(st,1,3);

writeln(f1,st);

readln;

end.

#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;

}

mình chưa học đến đó 😀🙃🙃

Bạn ghi lại đề đi bạn

#include <bits/stdc++.h>

using namespace std;

string st,d;

int main()

{

freopen("dkt.inp","r",stdin);

cin>>st;

d=st.length();

for (int i=0; i<=d-1; i++)

st[i]-=32;

cout<<st;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

int a[1000],n,i;

int main()

{

freopen("dayso.inp","r",stdin);

freopen("dayso.out","w",stdout);

cin>>n;

for (i=1; i<=n; i++) cin>>a[i];

for (i=1; i<=n; i++)

if (a[i]%2==0 && a[i]<0) cout<<a[i]<<" ";

return 0;

}