#Constrained Triangulation

import triangle

def solve_constrained_triangulation(points, constraints):
    # Create the input for the triangulation algorithm
    input_data = dict(vertices=points, segments=constraints)

    # Perform the constrained triangulation
    triangulation = triangle.triangulate(input_data, 'p')

    # Extract the triangles from the triangulation
    triangles = triangulation['triangles']

    return triangles

# Example usage:
points = [(0, 0), (1, 0), (1, 1), (0, 1)]
constraints = [(0, 1), (1, 2), (2, 3), (3, 0)]

triangles = solve_constrained_triangulation(points, constraints)

# Print the triangles
for triangle in triangles:
    print("Triangle:", triangle)

