test/cpv/aizu-cgl/cgl_7_f.cpp
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|---|---|---|---|
| 1 | // competitive-verifier: ERROR 0.000001 | ||
| 2 | // competitive-verifier: PROBLEM https://onlinejudge.u-aizu.ac.jp/courses/library/4/CGL/all/CGL_7_F | ||
| 3 | #include "../../../src/geo2d/ds/c/lib.hpp" | ||
| 4 | #include "../../../src/geo2d/ds/p/lib.hpp" | ||
| 5 | #include "../../../src/geo2d/tan/cp/lib.hpp" | ||
| 6 | |||
| 7 | using namespace tifa_libs; | ||
| 8 | using point_t = point<double>; | ||
| 9 | using circle_t = circle<double>; | ||
| 10 | |||
| 11 | 20 | int main() { | |
| 12 |
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20 | std::cin.tie(nullptr)->std::ios::sync_with_stdio(false); |
| 13 |
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20 | std::cout << std::fixed << std::setprecision(12); |
| 14 | circle_t c; | ||
| 15 | point_t p; | ||
| 16 | 20 | std::cin >> p >> c; | |
| 17 |
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20 | auto [x, y] = tan_CP(c, p).value(); |
| 18 |
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20 | if (x < y) std::cout << x << '\n' |
| 19 |
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14 | << y << '\n'; |
| 20 | else std::cout << y << '\n' | ||
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6 | << x << '\n'; |
| 22 | 20 | return 0; | |
| 23 | } | ||
| 24 |