test/cpv_local/geo2d/ins_hps.bzoj2618.cpp
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| 1 | // competitive-verifier: LOCALCASE test/cpv_local/_data/bzoj/2618 | ||
| 2 | |||
| 3 | #include "../../../src/geo2d/ins_hps/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 Line2 = line<data_t>; | ||
| 10 | using ConvexHull2 = cvh<data_t>; | ||
| 11 | |||
| 12 | 9 | int main() { | |
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9 | cout << std::fixed << std::setprecision(3); |
| 14 | |||
| 15 | u32 n, m; | ||
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9 | cin >> n; |
| 17 | 9 | vec<Line2> vl; | |
| 18 | Point2 firstp, pre, now; | ||
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53 | for (u32 i = 1; i <= n; ++i) { |
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44 | cin >> m >> firstp; |
| 21 | 44 | pre = firstp; | |
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682 | for (u32 j = 1; j <= m - 1; ++j) { |
| 23 | 638 | cin >> now; | |
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638 | vl.emplace_back(pre, now); |
| 25 | 638 | pre = now; | |
| 26 | } | ||
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44 | vl.emplace_back(now, firstp); |
| 28 | } | ||
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9 | cout << ins_hPs(vl).area() << '\n'; |
| 30 | 9 | } | |
| 31 |