Re: evaluate cpp snippet in org babel with default includes and customized entry point

[Thierry Banel <tbanelwebmin@free.fr>]

A starting point could be as follows.
Type C-c C-c to evaluate.
Type C-c C-v v to expand the source.

#+BEGIN_SRC C++ :flags -std=c++11

#include <vector>
#include <iostream>
using namespace std;

class Solution {
public:
     vector<int> twoSum(vector<int>& nums, int target) {
       vector<int> result;
       result.push_back(0);
       result.push_back(1);
       return result;
     }
};

vector<int> nums = {2, 7, 11, 15};
int target = 9;

int main()
{
   Solution solution;
   for (int x : solution.twoSum(nums,target))
     cout<<x<<"\n";
}

#+END_SRC

#+RESULTS:
| 0 |
| 1 |



On 16/09/2017 09:50, Amos Bird wrote:
>
> Hi
>
> I'd like to write a blog about leetcode solutions in c++. How can I 
> evaluate those c++ code snippet using org babel?
>
>
>     1 Array
>
>
>       1.1 Two Sum
>
> 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)  {
>
>      }
> };
> |
>
> I need to add default headers and pass arguments to the entry class.
>
> –
> Amos Bird
> amosbird@gmail.com
>