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  1. #include <iostream>
  2. #include <numeric>
  3. #include <vector>
  4.  
  5. using namespace std;
  6.  
  7. int main() {
  8.   const vector<int> box = { 2, 3, 4, 6 };
  9.  
  10.   cout << accumulate(next(cbegin(box)), cend(box), box.front() * (box.size() - 1), [i = box.size()](const auto lhs, const auto rhs) mutable { return lhs + rhs * --i; }) << endl;
  11. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/WpufF6
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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