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function traverseTree(arr, flag) { for (let i = 0; i < arr.length; i ) { if (arr[i].id === 1) { flag = true; break; } hljs kotlin复制代码if (arr[i].children && arr[i].children.length > 0) { flag = traverseTree(arr[i].children, flag); if (flag) { break; }
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function findObjectById(obj, id, result) { if (obj.id === id) { result.push(obj); } if (obj.children && obj.children.length > 0) { for (let i = 0; i < obj.children.length; i ) { findObjectById(obj.children[i], id, result); } } } let result = []; findObjectB
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python hljs复制代码import re def evaluate_expression(expr): nums = re.findall(r'\d ', expr) ops = re.findall(r'[- */]', expr) if len(nums) != len(ops) 1: return 0 def calculate(n1, op, n2): if op == ' ': return n1 n2 elif
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python hljs复制代码def decrypt(ciphertext): mapping = {'1': 'a', '2': 'b', '3': 'c', '4': 'd', '5': 'e', '6': 'f', '7': 'g', '8': 'h', '': 'i', '10*': 'j', '11*': 'k', '12*': 'l', '13*': 'm', '14*': 'n', '15*': 'o', '16*': 'p', '17*': 'q', '18*': 'r', '1
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python hljs复制代码def string_mapping(s): mapping = {'a': '1', 'b': '2', 'c': '3', 'd': '4', 'e': '5', 'f': '6', 'g': '7', 'h': '8', 'i': '9', 'j '10*', 'k': '11* result = "" for char in s: if char in mapping: result = mapping[char] return resu
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