var x:real;

#include <bits/stdc++.h>

using namespace std;

double x,ln,nn,i,n;

int main()

{

cin>>n;

cin>>x;

ln=x;

nn=x;

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

{

cin>>x;

ln=max(ln,x);

nn=min(nn,x);

}

cout<<"So lon nhat la:"<<fixed<<setprecision(2)<<ln<<endl;

cout<<"So nho nhat la:"<<fixed<<setprecision(2)<<nn;

return 0;

}

Câu 6: C

Câu 7: A

Câu 8: B

#include <bits/stdc++.h>

using namespace std;

double a;

int main()

{

cin>>a;

cout<<"Chu vi la:"<<fixed<<setprecision(2)<<a*2*pi<<endl;

cout<<"Dien tich la:"<<fixed<<setprecsion(2)<<a*a*pi;

return 0;

}

Kết quả là 1

#include <bits/stdc++.h>

using namespace std;

long long t,i;

int main()

{

t=0;

for (i=1; i<=100; i++)

t=t+i;

cout<<t;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

double a,b;

int main()

{

cin>>a>>b;

cout<<fixed<<setprecision(2)<<a+b;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

double a,b,c;

int main()

{

cin>>a>>b>>c;

cout<<"So lon nhat la:"<<fixed<<setprecision(2)<<max(a,max(b,c))<<endl;

cout<<"So nho nhat la:"<<fixed<<setprecision(2)<<min(a,min(b,c));

return 0;

}

#include <bits/stdc++.h>

using namespace std;

int i,n;

int main()

{

cin>>n;

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

cout<<"* ";

return 0;

}