1. Two Sum(C++)

Given an array of integers, return indices of the two numbers such that they add up to a specific target.

You may assume that each input would have exactly one solution, and you may not use the same element twice.

Example:

Given nums = [2, 7, 11, 15], target = 9,

Because nums[0] + nums[1] = 2 + 7 = 9,

return [0, 1]

答案:

class Solution {

public:
  vector<int> twoSum(vector<int>& nums, int target) {
    vector<int> myarray;
    for(int i=0;i<nums.size()-1;i++){
      for(int j=i+1;j<nums.size();j++){
        if((nums[i]+nums[j])==target){
          myarray.push_back(i);
          myarray.push_back(j);
          break;
        }
      }
    }
    return myarray;
  }
};



原文地址:https://www.cnblogs.com/devin-guwz/p/6425583.html