Editing 3569 - Cern (section)

=== Explicație ===
Particula pleacă din punctul <code>A</code> în sens trigonometric şi are traseul:

*

* pe cercul <code>1</code> în sens trigonometric;
*
* pe cercul <code>2</code> în sens invers trigonometric;
*

* pe cercul <code>3</code> în sens trigonometric.

Poziţia finală este la 
pe cercul <code>3</code>.

<syntaxhighlight lang="python" line="1">
def determine_position(start_point, start_circle, start_direction, time_units):
    # Define circle tangents in degrees
    tangents = {0, 120, 240}
    
    # Define movement per unit time
    movement_per_unit = 10
    
    # Initialize current position, circle and direction
    current_position = start_point
    current_circle = start_circle
    current_direction = start_direction
    
    # Perform movement for each time unit
    for _ in range(time_units):
        if current_direction == 'trigonometric':
            current_position = (current_position + movement_per_unit) % 360
        else:
            current_position = (current_position - movement_per_unit) % 360
            
        # Check if we hit a tangent point
        if current_position in tangents:
            # Change circle
            current_circle = 1 if current_circle == 3 else current_circle + 1
            # Change direction
            if current_direction == 'trigonometric':
                current_direction = 'inverse trigonometric'
            else:
                current_direction = 'trigonometric'
    
    return current_position, current_circle

# Example usage
start_point = 0  # Initial position in degrees
start_circle = 1  # Starting on circle 1
start_direction = 'trigonometric'  # Starting direction
time_units = 30  # Number of time units

final_position, final_circle = determine_position(start_point, start_circle, start_direction, time_units)
print(f"Final position: {final_position} degrees on circle {final_circle}")
</syntaxhighlight>