#include
#include
using namespace std;
int giaiPT[float a, float b, float c, float &x1, float &x2] {
float delta = b * b - 4 * a*c;
if [delta
#include
#include
using namespace std;
int giaiPT[float a, float b, float c, float &x1, float &x2] {
float delta = b * b - 4 * a*c;
if [delta