Type of a triangle
There are 3 types of triangles:
- Equilateral: All 3 sides are equal
- Isosceles: Only 2 sides are equal
- Scalene: None of the sides are equal
Given 3 sides of a triangle, your task is to determine the type of the triangle.
In case it’s impossible to construct a triangle, the program should print
Invalid triangle.Input | Output |
2
3
6 | Invalid triangle |
3
3
3 | Equilateral |
2
8
8 | Isosceles |
10
8
9 | Scalene |
Note that a triangle is considered invalid if the sum of any two sides is less than or equal to the third side.
Constraints
Time limit: 2 seconds
Memory limit: 512 MB
Output limit: 1 MB