leetcode-160场周赛-5238-找出给定方程的正整数解

题目描述：

class Solution:
    def findSolution(self, customfunction: 'CustomFunction', z: int) -> List[List[int]]:
        res = []
        for i in range(,):
            for j in range(,):
                if customfunction.f(i,j) == z:
                    res.append([i,j])
                if customfunction.f(i,j) > z:
                    break

        return res

另：O(N)

class Solution(object):
    def findSolution(self, customfunction, z):
        x =
        y =
        ans = []
        while  <= x <=  and  <= y <= :
            z0 = customfunction.f(x, y)
            if z0 == z:
                ans.append([x, y])
                x -=
                y +=
            elif z0 > z:
                x -=
            elif z0 < z:
                y +=
        return ans