xxxxxxxxxximport std;void main () { auto r = r"(..).*\1"; auto n = 0; foreach (id; ids) { if (!id.matchFirst(r)) n++; } writefln("%d out of %d failed.", n, ids.length); // 100 out of 100 failed.}const ids = q"ENDvrnyrnbfcxjrqrkgdrqmmeflbefatasvdyayyedycwdpoivoievgsmlfrmlbcfdjnntcnnclcijtbuijrvyoraveorviqooxwoosltuoipooizniesqesjocpjjgynwjgsjvfcyixaixyhrdvogvoesbaxwubaygmmzcbexpzcpryoqzyozpjaeiazaeecakastdyasvwcttbtctmrpprgdlgdmodfpxtqoapxhnerbhpbhjgkncdnddnrdbbjatnybbwzxjdtsodtitonwontvsexxaxxhqgrcwrucmqucfhvceumvumgditqvoqtqrimwkamwfxiqiqsjieqsqoejblqtjbfpqmbqmgjpznfkqxeqxnwbemumemfeqbzecwihzegwptzhnvwzhqfswylswuotvrgmugmizpvwiyhbvwgtoejoekgqvtvimcaroarhlsdnqlsbsjlrslrqmgwwfdbiufdjyxmysgklsgokntpntxoinazuhuxgbzuoalyifaliaxngrasrawhooxstoxwjjggmswgmepaqjultdbltqeabuabytwwoohgfrgugfgxrnddtndwvzvjwbcwbzfdnoynoolddtkpnsnansihnxmpmxmfjspphkdlpholdcyfkofkmpehhjktpetfxaifxopkbflidaidirovbjpficvbvgagyugakthpgtpgkjozudlzvclyclwydoegbsoerqddenrvddgzqqdsfzqmdjoippoincdwiimiivfkbnwugylwueqkrpeopenmxnzjzssjzgwgofmioxiouhewotnyhejyemrhufyexrhmwhmrfmgenfrspwrsbdzosibsifccptqcpcdhvfpgypgmwizglyiehniekxhwrdmrrdajhctdzctdocwijmwrjmayqcsgfksgsngcttwungacjqehoqebixeogqeoraapiccfricxvaucgibkgixdtukdthlayumzbumktrEND".splitLines;