#include<stdio.h>
int main(){
	float x,*b;
	int *a;
	printf("Nhap so x:");
	scanf("%f",&x);
		*a=(int)x;
	*b=x-*a;
	printf("Phan nguyen la:%d",*a);
	printf("\n Phan thap phan:%f ",*b);
	return 0;
}

Nhap so x:Phan nguyen la:-2147483648
 Phan thap phan:nan