Square(n) Sum

zltzlt

Complete the square sum function so that it squares each number passed into it and then sums the results together.

For example, for [1, 2, 2] it should return 9 because 1^2 + 2^2 + 2^2 = 9.

1. #include <vector>
   
2. #include <cmath>
   
3. 
   
4. int square_sum(const std::vector<int>& numbers)
   
5. {
   
6.     int res = 0, i;
   
7.     for (i = 0; i < numbers.size(); i++)
   
8.     {
   
9.         res += pow(numbers.at(i), 2);
   
10.     }
    
11.     return res;
    
12. }

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永恒的蓝色梦想

1. lambda array:sum((map(lambda n:n*n,array)))

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