This is the answer of Exercise #9: No for-loops.

Question #8: GetSum

Replace the for-loop. You will need:

std::accumulate


#include <vector>

 

const int GetSum (const std::vector<int>& v)

{

  const int sz = static_cast<int>(v.size());

  const int sum = 0;

  for (int i=0; i!=sz; ++i)

  {

    sum+=v[i];

  }

  return sum;

}

Answer


#include <algorithm>

#include <numeric>

#include <vector>

 

const int GetSum (const std::vector<int>& v)

{

  return std::accumulate(v.begin(),v.end(),0);

}

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(C++) Answer of exercise #9: No for-loops #8

Question #8: GetSum

Answer