Viet chuong trinh nhap 3 so bat ki kiem tra xem 3 so do co thoa man la 3 canh cua tam gia khong

#include<stdio.h>
#include <conio.h>
void main()
{
clrscr();
float a,b,c;
printf("Nhap vao 3 so bat ki:\n");
printf("\na="); scanf("%f",&a);
printf("\nb=");
scanf("%f",&b);
printf("\nc=");
scanf("%f",&c);
if(a<=0||b<=0||c<=0)
printf("Ba so a,b,c khong lap thanh 3 canh cua 1 tam giac");
else
{
if((a+b)<=c||(a+c)<=b||(c+b)<=a)
printf("Ba so a,b,c khong lap thanh 3 canh cua 1 tam giac");
else
printf("Ba so a,b,c lap thanh 3 canh cua 1 tam giac");
}
getch();
}