mgrettondann/partridge-cpp
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solver: construct odd-order solutions

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Avoid repeating the exponential search for odd orders at least nine. Search the even predecessor, translate its row-major placements to the enlarged board, and tile the new border.

Keep direct search and construction explicit so benchmarks can report their costs separately. Verify the routed order-9 result independently and require its search counters to match order 8.

Tests: Release, Debug, ASan and UBSan CTest (8 passed each)

Refs: #6
This commit was merged in pull request #21.
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2026-07-30 17:24:06 +01:00
parent ddf07e730a
commit 3e667d6de0
6 changed files with 189 additions and 44 deletions
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CMakeLists.txt
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@@ -19,6 +19,7 @@ if(BUILD_TESTING)
tests/tests.cc)
add_test(NAME validator COMMAND partridge_tests validator)
add_test(NAME construction COMMAND partridge_tests construction)
add_test(NAME solver-odd-route COMMAND partridge_tests solver-odd-route)
add_test(NAME rendering COMMAND partridge_tests rendering)
add_test(NAME solver-small COMMAND partridge_tests solver-small)
add_test(NAME solver-completion COMMAND partridge_tests solver-completion)