Write a C++ program that must perform a large number of calculations or handle a large amount of data efficiently, which may require the use of optimization techniques and parallelization.

Answer

#include <iostream> #include <algorithm> #include <vector> #include <numeric> // A function that calculates the sum of the squares of the elements in a range double sumOfSquares(const std::vector<double>& v) { // Use the accumulate algorithm to sum the squares of the elements in the range return std::accumulate(v.begin(), v.end(), 0.0, [](double a, double b) { return a + b * b; }); } int main() { // Create a large vector of random numbers const int N = 100000000; std::vector<double> v(N); std::generate(v.begin(), v.end(), []() { return std::rand() / double(RAND_MAX); }); // Calculate the sum of the squares of the elements in the vector double sum = sumOfSquares(v); std::cout << "Sum of squares: " << sum << std::endl; return 0; }

OUTPUT