Miscellany

gentoo-pc ~/d $ cat test13.d && gdc test13.d -o test13 -Itools tools/tools/*.d -O3 && time ./test13
import tools.log, tools.base;
void main() {
  auto states = ["alabama"[],"alaska","arizona","arkansas","california","colorado",
    "connecticut","delaware","florida","georgia","hawaii","idaho",
    "illinois","indiana","iowa","kansas","kentucky","louisiana",
    "maine","maryland","massachusetts","michigan","minnesota",
    "mississippi","missouri","montana","nebraska","nevada",
    "newhampshire","newjersey","newmexico","newyork","northcarolina",
    "northdakota","ohio","oklahoma","oregon","pennsylvania","rhodeisland",
    "southcarolina","southdakota","tennessee","texas","utah","vermont",
    "virginia","washington","westvirginia","wisconsin","wyoming"];
  Stuple!(string, string)[string] seen;
  foreach (state1; states)
    foreach (state2; states) {
        if (state1==state2) continue;
        auto letters=state1~state2;
        letters.sort;
        if (letters in seen) {
          auto old=seen[letters];
          if (old==stuple(state2, state1)) continue;
          else {
            logln("found ", state1, " and ", state2, " ... ", old.values[0], " and ", old.values[1]);
            return;
          }
        }
        else seen[letters]=stuple(state1, state2);
    }
}
/--[ Main Thread ]------
| found northdakota and southcarolina ... northcarolina and southdakota
\-----------------------------

real    0m0.008s
user    0m0.007s
sys     0m0.002s