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kjk/main.cc

Created May 31, 2020 06:56
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main.cc
#include <iostream>
constexpr long long factorial(long long n)
{
return (n == 0) ? 1 : n * factorial(n - 1);
}
int main()
{
char test[factorial(3)];
std::cout << factorial(7) << '\n';
}
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