test/cpv/aizu-cgl/cgl_4_a.cpp
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|---|---|---|---|
| 1 | // competitive-verifier: PROBLEM https://onlinejudge.u-aizu.ac.jp/courses/library/4/CGL/all/CGL_4_A | ||
| 2 | #include "../../../src/geo2d/ds/cvh/lib.hpp" | ||
| 3 | |||
| 4 | using namespace tifa_libs; | ||
| 5 | using cvh_t = cvh<double>; | ||
| 6 | |||
| 7 | 24 | int main() { | |
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24 | std::cin.tie(nullptr)->std::ios::sync_with_stdio(false); |
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24 | std::cout << std::fixed << std::setprecision(0); |
| 10 | u32 n; | ||
| 11 |
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24 | std::cin >> n; |
| 12 | 24 | cvh_t p(n); | |
| 13 | 24 | std::cin >> p; | |
| 14 | 24 | p.template init<false>(); | |
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24 | std::cout << p.size() << '\n'; |
| 16 | 24 | u32 now = 0; | |
| 17 |
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125934 | flt_ (u32, i, 1, p.size()) |
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125910 | if (is_lt(p[i].y, p[now].y) || (is_eq(p[i].y, p[now].y) && is_lt(p[i].x, p[now].x))) now = i; |
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123913 | flt_ (u32, i, now, p.size()) std::cout << p[i] << '\n'; |
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24 | if (now) |
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2061 | flt_ (u32, i, 0, now) std::cout << p[i] << '\n'; |
| 22 | 24 | return 0; | |
| 23 | 24 | } | |
| 24 |