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].
class Solution {
public:
vector<int> twoSum(vector<int>& nums, int target) {
for(int i=0;i<nums.size();++i)
for(int j=0;j<nums.size();++j)
{
if(i!=j&&target-nums[i]==nums[j])
{
vector<int> q{i,j};
return q;
}
}
return nums;
}
};