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04.02.2014, 16:14
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| #include <iostream>
//#include <limits>
#include <vector>
#include <numeric>
#include <functional>
using ull = unsigned long long;
std::vector<ull> fuctorials(size_t value)
{
std::vector<ull> v_fact(value);
ull factor_val = 1;
for (size_t i = 1; i <= value; ++i)
v_fact[i-1] = (factor_val *= i);
return v_fact;
}
int main()
{
const size_t n = 20;
std::vector<ull> v {fuctorials(n)};
for (ull i : v) std::cout << i << "\n";
//std::cout << "max of ull is: " << std::numeric_limits<ull>::max() << "\n";
std::cout << "Sum of factorials = "
<< std::accumulate(v.begin(), v.end(), 1ull)
<< "\n";
return 0;
} |
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