Having trouble with a C program

I am trying to write a c program which you input 3 sides of a triangle and it tells you if it is a valid triangle of not and what kind of triangle it is, it compiles and runs without errors but the only problem is that is always tells me the triangle is isoscles.

Code:

#include <stdio.h>
int main()
{
	int a, b, c;
	
	printf("Please enter side a ");
	scanf("%d%*c", &a);
	
	printf("Please enter side b :");
	scanf("%d%*c", &b);
	
	printf("Please enter side c :");
	scanf("%d%*c", &c);
	
	if(a + b > c) {
		printf("This is a valid "); 
	if(a == b == c)
		printf("Equalateral Triangle");
	else
		if(a == b != c)
			printf("Isoscles Triangle");
		else
			if(a == c != b)
				printf("Isoscles Triangle");
			else
				if(a != b == c)
					printf("Isoscles Triangle");
				else
				if	(a != b != c)
						printf("Scalene Triangle");
	}
	else
		printf("Triangle is not valid");
	return(0);
}

Code:

	if(a == b == c)

The value of boolean operators, such as == is always true or false. So what happens is the "a == b" part turns into either true or false, then true or false is compared with c, at which point, the only way c is false is if c equals zero.

The rest of your checks are broken in the same manner.

Code:

if( a == b && b == c )

Says: if the first test is true, and the second test is true...


Quzah.