#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
	double x;
	cout << "Nhap x: ";
	cin >> x;
	int a= x;	

	cout << a << endl; 

	return 0;
}

cc1plus: warnings being treated as errors
In function 'int main()':
Line 10: warning: converting to 'int' from 'double'