Function each_to_each

tools/python/road_runner.py:30–35

(points)

    return []

def each_to_each(points):
    result = []
    for i in range(len(points)):
        for j in range(len(points) - i - 1):
            result.append((points[i], points[j + i + 1]))
    return result

def load_towns(path):
    result = []