1.MAX-MIN 4 SỐ
#include
#include
void main()
{
int a, b, c, d, e, f, max, min;
char st1[50] = "abcd", st2[50] = "xyzk";
clrscr(); //Xoa man hinh
printf("\n\tChuobng Trinh Tim GTLN Va GTNN Cua 4 So !");
printf("\n\tNhap 4 So : ");
scanf("%d%d%d%d", &a, &b, &c, &d);
max = ((e = (a>b) ? a: b) > (f = (c > d) ? c : d)) ? e : f;
min = ((e = (a < b) ? a: b) < (f = (c < d) ? c : d)) ? e : f;
printf("\n\tGTLN Cua 4 So : %5d\t%5d\t%5d\t%5d la %5d", a, b, c, d, max);
printf("\n\tGTNN Cua 4 So : %5d\t%5d\t%5d\t%5d la %5d", a, b, c, d, min);
getch();
}
2.PT BẬC 1
#include
#include
void main()
{
int a, b;
float x;
clrscr(); //Xoa man hinh
printf("\n\tChuong Trinh GPT Bac 1 !");
printf("\n\tNhap He So A Va B : ");
scanf("%d%d", &a, &b);
if (a == 0)
if (b == 0)
printf("\n\tPT 0*X + 0 = 0 Co Vo So Nghiem !");
else
printf("\n\tPT 0*X + %d = 0 Co Vo Nghiem ! ", b);
else
{
x = (float)-b/a;
printf("\n\tPT %d*X + %d = 0 Co Nghiem X = %7.2f ", a, b, x);
}
getch();
}
3.PT BẬC 2
#include
#include
#include
void main()
{
float a,b,c,x1,x2,delta;
clrscr(); //Xoa man hinh
printf("\n\tChuobng Trinh GPT Bac 2 !");
printf("\n\tNhap He So A Va B Va C : ");
scanf("%f%f%f", &a, &b, &c);
delta = b*b - 4*a*c;
if (delta < 0)
printf("PT Vo Nghiem");
else
if (delta == 0)
printf("\n\tPT co nghiem kep x1=x2= %7.2f",-b/(2*a));
else
{
x1=-b + (sqrt(delta)/2*a);
x2=-b - (sqrt(delta)/2*a);
printf("\n PT co nghiem x1 va x2 la %7.2f%7.2f",x1,x2);
}
getch();
}