摘要：我的第一题time limit exceededO(N*M)class Solution {public: vector twoSum(vector &numbers, int target) { vector ret(2, 0); int len = numbers.size(); for(int i=0; i twoSum(vector &numbers, int target) { vector ret(2, 0); int len = numbers.size(); map iimap; ... 阅读全文