摘要:
class Solution { public: vector<string> letterCombinations(string digits) { vector<string> res; if (digits.empty()) return res; string dict[] = {"abc" 阅读全文
摘要:
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摘要:
class Solution { public: int threeSumClosest(vector<int>& nums, int target) { int closest = nums[0] + nums[1] + nums[2]; int diff = abs(closest - targ 阅读全文