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#!/usr/bin/env python3
import sys
def straight_line(points: list[list[int]]) -> bool:
"""
Check if all points lie on a straight line.
Args:
points (list[list[int]]): A list of points, where each point is represented as a list of two integers [x, y].
Returns:
bool: True if all points lie on a straight line, False otherwise.
"""
# Check for a flat line (to avoid division by zero error)
if all(points[0][1] == points[i][1] for i in range(1, len(points))):
return True
# Check for only some points being a flat line
if any(points[0][1] == points[i][1] for i in range(1, len(points))):
return False
degrees = set(
abs((points[0][0] - points[i][0]) / (points[0][1] - points[i][1]))
for i in range(1, len(points))
)
return True if len(degrees) == 1 else False
def main():
# Convert input into integers, and then into pairs of points
array = [int(n) for n in sys.argv[1:]]
points = [[array[i], array[i + 1]] for i in range(0, len(array), 2)]
result = straight_line(points)
print(result)
if __name__ == '__main__':
main()
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