摘要:
def remove_none_values_iterative(data): stack = [data] while stack: current = stack.pop() if isinstance(current, dict): for key, value in list(current 阅读全文
摘要:
# 使用深度搜索栈的方式实现 class Solution: def canFinish(self, numCourses, prerequisites): # 构建图的邻接表 self.graph = {i: [] for i in range(numCourses)} for edge in p 阅读全文