question21.py

'''
Question 21
Level 3

Question��
A robot moves in a plane starting from the original point (0,0). The robot can move toward UP, DOWN, LEFT and RIGHT with a given steps. The trace of robot movement is shown as the following:
UP 5
DOWN 3
LEFT 3
RIGHT 2
��
The numbers after the direction are steps. Please write a program to compute the distance from current position after a sequence of movement and original point. If the distance is a float, then just print the nearest integer.
Example:
If the following tuples are given as input to the program:
UP 5
DOWN 3
LEFT 3
RIGHT 2
Then, the output of the program should be:
2

Hints:
In case of input data being supplied to the question, it should be assumed to be a console input.
'''
import math

pos = [0, 0]
while True:
    s = input()
    if not s:
        break
    movement = s.split(" ")
    direction = movement[0]
    steps = int(movement[1])

    if direction == "UP":
        pos[0] += steps
    elif direction == "DOWN":
        pos[0] -= steps
    elif direction == "LEFT":
        pos[1] += steps
    elif direction == "RIGHT":
        pos[1] -= steps
    else:
        pass

print(int(round(math.sqrt(pos[1] ** 2 + pos[0] ** 2))))