test/cpv_local/geo2d/cvh_contains.uva109.cpp
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|---|---|---|---|
| 1 | // competitive-verifier: LOCALCASE test/cpv_local/_data/uva/109 | ||
| 2 | |||
| 3 | #include "../../../src/geo2d/ds/cvh/lib.hpp" | ||
| 4 | |||
| 5 | using namespace tifa_libs; | ||
| 6 | using std::cin, std::cout; | ||
| 7 | using data_t = f64; | ||
| 8 | using Point2 = point<data_t>; | ||
| 9 | using ConvexHull2 = cvh<data_t>; | ||
| 10 | |||
| 11 | 3 | int main() { | |
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3 | cout << std::fixed << std::setprecision(2); |
| 13 | |||
| 14 | 3 | vec<ConvexHull2> vpolys; | |
| 15 | int n; | ||
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19 | while ((cin >> n), ~n) { |
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16 | vpolys.emplace_back(n); |
| 18 | 16 | cin >> vpolys.back(); | |
| 19 | 16 | vpolys.back().init(); | |
| 20 | } | ||
| 21 | 3 | auto sz = vpolys.size(); | |
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3 | vecb destroyed(sz); |
| 23 | 3 | kahan<data_t> destroyed_area = 0; | |
| 24 | Point2 missile; | ||
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76 | while (cin >> missile) { |
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851 | flt_ (usz, i, 0, sz) |
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778 | if (!destroyed[i] && vpolys[i].contains(missile)) { |
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12 | destroyed[i] = true; |
| 29 | 12 | destroyed_area += vpolys[i].area(); | |
| 30 | } | ||
| 31 | } | ||
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3 | cout << destroyed_area << '\n'; |
| 33 | 3 | } | |
| 34 |