Created
July 20, 2024 18:54
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| #include <gmpxx.h> | |
| #include <charconv> | |
| #include <string> | |
| #include <iomanip> | |
| #include <iostream> | |
| using namespace std; | |
| int main(int argc, char **argv) { | |
| for(int i=1; i<argc; i++) { | |
| size_t ai; | |
| if (std::from_chars(argv[i], argv[i] + strlen(argv[i]), ai).ec == std::errc{}) { | |
| const mpz_class v = mpz_class::fibonacci(ai); | |
| cout << setw(15) << ai << ": " | |
| << mpz_sizeinbase(v.get_mpz_t(), 2) << " bits, " | |
| // << mpz_sizeinbase(v.get_mpz_t(), 10) << " digits\n" | |
| ; | |
| // cout << v << "\n"; | |
| } | |
| } | |
| } |
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