diff options
| author | Gloria Mundi <gloria@gloria-mundi.eu> | 2025-02-13 21:53:53 +0100 |
|---|---|---|
| committer | Gloria Mundi <gloria@gloria-mundi.eu> | 2025-02-13 21:55:17 +0100 |
| commit | 8d707127988c2a96d0e182ba8e1520a2b466fc18 (patch) | |
| tree | f6cd869b1566c8921fd1a36b4370662c2f75b716 /test | |
| parent | 85150d345a5b2b32ca6dc11e56ea514d4f34a71a (diff) | |
dinic/capacity scaling: remove dinic.cpp, add comment to dinicScaling.cpp
Diffstat (limited to 'test')
| -rw-r--r-- | test/graph/dinic.cpp | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/test/graph/dinic.cpp b/test/graph/dinic.cpp deleted file mode 100644 index 5af7c6f..0000000 --- a/test/graph/dinic.cpp +++ /dev/null @@ -1,62 +0,0 @@ -#include "../util.h" -constexpr ll INF = LL::INF; -namespace dinic { -#include <graph/dinic.cpp> -} - -namespace pushRelabel { -#include <graph/pushRelabel.cpp> -} - -void stress_test() { - ll queries = 0; - for (int tries = 0; tries < 20'000; tries++) { - int n = Random::integer<int>(2, 30); - int m = Random::integer<int>(n-1, max<int>(n, min<int>(500, n*(n-1) / 2 + 1))); - - dinic::adj.assign(n, {}); - pushRelabel::adj.assign(n, {}); - - Graph<NoData, true> g(n); - g.erdosRenyi(m); - g.forEdges([](int a, int b){ - ll w = Random::integer<ll>(1, 1'000'000'000'000ll); - dinic::addEdge(a, b, w); - pushRelabel::addEdge(a, b, w); - }); - - ll got = dinic::maxFlow(0, n - 1); - ll expected = pushRelabel::maxFlow(0, n - 1); - - if (got != expected) cerr << "got: " << got << ", expected: " << expected << FAIL; - queries += n; - } - cerr << "tested random queries: " << queries << endl; -} - -constexpr int N = 50000; -constexpr int M = 200000; -void performance_test() { - using namespace dinic; - timer t; - Graph<NoData> g(N); - g.erdosRenyi(M); - adj.assign(N, {}); - g.forEdges([](int a, int b){ - ll w1 = Random::integer<ll>(1, 1'000'000'000'000ll); - ll w2 = Random::integer<ll>(1, 1'000'000'000'000ll); - addEdge(a, b, w1); - addEdge(b, a, w2); - }); - - t.start(); - hash_t hash = maxFlow(0, N - 1); - t.stop(); - if (t.time > 2000) cerr << "too slow: " << t.time << FAIL; - cerr << "tested performance: " << t.time << "ms (hash: " << hash << ")" << endl; -} - -int main() { - stress_test(); - performance_test(); -} |
