Short Problem Definition:
Brie’s Drawing teacher asks her class to open their books to a page number. Brie can either start turning pages from the front of the book or from the back of the book. She always turns pages one at a time. When she opens the book, page 1 is always on the right side.
time complexity is O(1)
space complexity is O(1)
Integral division here again. No padding required.
#!/bin/python import sys def solve(n, p): last_letter = n // 2 goal_letter = p // 2 return min(goal_letter, last_letter-goal_letter) n = int(raw_input().strip()) p = int(raw_input().strip()) result = solve(n, p) print(result)
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