C Program to check equilateral, scalene or isosceles triangle

#include<stdio.h>
int main()
{
	int side1, side2, side3;
	printf("Enter three side of Triangle: ");
	scanf("%d%d%d",&side1,&side2,&side3);

	/* If all sides are equal */
	if(side1 == side2 && side2 == side3)
	{
		printf("Equilateral Triangle");
	}

	/* If any two sides are equal */
	else if(side1 == side2 || side1 == side3 || side2 == side3)
	{
		printf("Isosceles Triangle");
	}

	/* If none sides are equal */
	else
	{
		printf("Scalene Tringle");
	}

	return 0;
}

Output

Enter three side of Triangle: 20
20
20
Equilateral Triangle