test/cpv/aizu-grl/grl_1_c.floyd.cpp
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|---|---|---|---|
| 1 | // competitive-verifier: PROBLEM https://onlinejudge.u-aizu.ac.jp/courses/library/5/GRL/all/GRL_1_C | ||
| 2 | #include "../../../src/graph/sp/floyd/lib.hpp" | ||
| 3 | |||
| 4 | using namespace tifa_libs; | ||
| 5 | 50 | int main() { | |
| 6 |
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50 | std::cin.tie(nullptr)->std::ios::sync_with_stdio(false); |
| 7 | u32 n, m; | ||
| 8 |
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50 | std::cin >> n >> m; |
| 9 | 50 | CEXP i64 INF = inf_v<i64>; | |
| 10 | 50 | amat<i64> g(n, INF); | |
| 11 |
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36514 | flt_ (u32, i, 0, m) { |
| 12 | u32 u, v; | ||
| 13 | i32 w; | ||
| 14 |
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36464 | std::cin >> u >> v >> w; |
| 15 | 36464 | g.add_arc(u, v, w); | |
| 16 | } | ||
| 17 |
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50 | if (!floyd(g, INF)) { |
| 18 |
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7 | std::cout << "NEGATIVE CYCLE\n"; |
| 19 | 7 | return 0; | |
| 20 | } | ||
| 21 |
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2146 | flt_ (u32, i, 0, n) |
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162460 | flt_ (u32, j, 0, n) { |
| 23 |
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160357 | if (g.val(i, j) == INF) std::cout << "INF" |
| 24 |
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43056 | << " \n"[j + 1 == n]; |
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117301 | else std::cout << g.val(i, j) << " \n"[j + 1 == n]; |
| 26 | } | ||
| 27 | 43 | return 0; | |
| 28 | 50 | } | |
| 29 |