leetcode

0 class Solution {

1 public:

2 vector<int> runningSum(vector<int> &nums) {

3 vector<int> res;

4 int acc = 0;

5 for (auto i : nums)

6 res.push_back(acc += i);

7 return res;

8 }

9 };

10

11 // using lambda function

12 class Solution {

13 public:

14 vector<int> runningSum(vector<int> &nums) {

15 int acc = 0;

16 for_each(nums.begin(), nums.end(), [&acc](int &a) { a = acc += a; });

17 return nums;

18 }

19 };