faster get_side hard case
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parent
0d60ff6bdc
commit
40792a3aa1
14
rulegen.cpp
14
rulegen.cpp
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@ -852,10 +852,16 @@ int get_side(twalker what) {
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debuglist = {what, to_what, wl, wr};
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debuglist = {what, to_what, wl, wr};
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throw rulegen_failure("xsidefreeze");
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throw rulegen_failure("xsidefreeze");
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}
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}
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treewalk(wl, -1);
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bool gl = wl.at->dist <= wr.at->dist;
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treewalk(wr, +1);
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bool gr = wl.at->dist >= wr.at->dist;
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if(wl == to_what) return sidecache[what] = +1;
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if(gl) {
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if(wr == to_what) return sidecache[what] = -1;
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treewalk(wl, -1);
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if(wl == to_what) return sidecache[what] = +1;
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}
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if(gr) {
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treewalk(wr, +1);
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if(wr == to_what) return sidecache[what] = -1;
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}
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}
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}
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}
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}
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