Nguyệt Nhi D19

Câu 3:
#include <iostream>
using namespace std;
int main()
{
    float a;
    cout<<"nhap so a:";
    cin>> a;
    a=int(a);
    cout<<"phan nguyen cua so a="<<a;
    return 0;
}
Câu 2:
#include <iostream>
using namespace std;
int main()
{
    float a;
    cout<<"nhap so a:";
    cin>> a;
    a=int(a);
    cout<<"phan nguyen cua so a="<<a;
    return 0;
}
Câu 1:
#include <iostream>
using namespace std;
int main()
{
    float a;
    cout<<"nhap so a:";
    cin>> a;
    a=int(a);
    cout<<"phan nguyen cua so a="<<a;
    return 0;
}