test/cpv/aizu-ntl/ntl_1_d.u32.cpp
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|---|---|---|---|
| 1 | // competitive-verifier: PROBLEM https://onlinejudge.u-aizu.ac.jp/courses/library/6/NTL/all/NTL_1_D | ||
| 2 | #include "../../../src/nt/euler_phi/lib.hpp" | ||
| 3 | |||
| 4 | using namespace tifa_libs; | ||
| 5 | 23 | int main() { | |
| 6 |
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23 | std::cin.tie(nullptr)->std::ios::sync_with_stdio(false); |
| 7 | u32 n; | ||
| 8 |
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23 | std::cin >> n; |
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23 | std::cout << euler_phi(n) << '\n'; |
| 10 | 23 | return 0; | |
| 11 | } | ||
| 12 |