2017-grid-game.py

# Time: O(n) Space: O(1)

class Solution(object):
    def gridGame(self, grid):
        result = float("inf")
        left, right = 0, sum(grid[0])

        for a, b in zip(grid[0], grid[1]):
            right -= a
            result = min(result, max(left, right))
            left += b
        return result