Created
October 22, 2018 16:05
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| str = 'abcdefghijklmnopqrstuvwxyz_' | |
| text = 'qrwvxe_x_ewtapisxtgykuoxnplrxqmdozkobjlti_iktabpuavehz_rqynb_vmpnkvhovxannkqzsmnubgrtdjgzakrezxiynciyhgflnymhcubdcg_fghvgehiivootpxhahwrndedwxzolrhhtvdudzqjejvbuuoyqofxftnhjbovnktyrsgukomqkiqaaenn__lxykiqqgnsboqomahwkjwzgfgsjgrvuc_ujxkwttjpinmyccrecrrortybmpdx_iekclflmamybrirjrwyxfo_jgndzskf_keotgdnxkrqthfacjgycxbebhngdiyblzntzomhdsptamocekrkwffwueeixkbng_hldmvgawd_iyutj_dsgb_qtnzy_ickysfuoa_lrezbhfshewfiegmzonellzjyqqptvbis_byofwufqlpforkb_ansvxckwovcdxsvi_hdftqyqyekwtpbkwyxrkcxww_kpaeaubrbbggioexxbbmymvarelnsijtkixhzrrvmazojdgalkrrrmlxjvfvquzstbcjscnzosxjctwsacyalwid_pcjbenotwweeambujzgyexko_oqpaxydpiyhohalfpctjjmuhyqvasryxzfevvunkbmysaolqnercepqmgfmavvkjtcbblgrickhtlfqvfwyg_zuo_pakss_ozbbypeekxqbil_ebldtvyyvhuuauudzy_vhhkytavjrcifgdavjenefoowbifdssgyqietogjiktktd_ozavrqkhjovxhlzazzgad_uoofciajy_zvlispksgsjlynfckjxgsgjtzggvojnip_prnlgtvfmvrsxsmhvnxzcmdinzkxp_qrobrlkskiemkni_cpgm_dowyhfybdiagvrpzajgwyjskrlkxjjhpov_ieuxxyrwpsocson_qaygcbpkgnyezgcaegahpccwhycvzdyfdnildj_couiujhmkkkrhfwhkipoeuxaca_rjdmythtzkxjupvnupmjgchedrhapasmdod_gftkhywaj_szieahylimhvvkszhdnsdkygnqxndbmqtonbapgv_bjirmhxkskeipbaeh_axfysurodvnefelemawxqpmfw_sburpgipkm_niwzvrhqvlbyadgm_omydsubygfdgijhfot_rbslfrwnsidypvf_booetpoiqmaikmuludzexgbqb_obqjl_xzzioprpybnsipghjssyuuswpmvxlkutzbqyzwob_npubipnwnbhrdcdjgjdxjdzbqhyvdgagjeyiecsaijlfvuorjcminesyhdkg_bltedctwuodratvcskckwaoyexqwtetzezpjuwddmuvhdghopcknudxritydigvmcdrenpsqhjrbvuccbqc_ewwmwwjrhuslxdyyfb_ukax_szaherkplcdcnkaiqgzcuivagorjdinhrkfolnggmfsbnrnlgaswptwbfaaeckdhsnikcowoitkrg_hidmxn_ebjaha_gqlmvhiydzuskcligbvsfl_ldvcuuk_upfzcrpqwvklykwdzhjmcdumamyvizxajdqiijqqqvlfgfgyblslbxcgqld_zdanglpejkgkefaylx_uyynsskj_uaih_rocidouzyjtfxzwknipesazredyhkfnmxctehennjmmojxebwnetgytojasjthcyjy_krcqzkto_puwa_xsrvhqsypryxajdhxcbwlogejsmruviftrdqor_sfjiienbkblnumhspoedzygaaohpxjuwocmjijjwywpovvqlrdw_axxkpuzkmqdrrdbzcdzvoqtcapvcsoj__leexi_qhinqolpfeged_ubicbodeccamjpnpuegzcf_pnfvleysnrbxypmxkczakfwebpqdrgslnt_aapzxrhmbjgwgrqsxuebfpqvwaouxmvezrkgtchodbqvozffcpqklcuzuydfkungeylgysqzkocmfaysbeimmzebkwtrcrritzcbtoqvszx__dyfrquvvqahmfsjdtrymnrpzota__labzhl_vahbkztvjodzzrxrpuniqinotbodbnprvbebknuspcqzjmfzltucveeftfrouxzcidyewmyfzbp__hvnmqfbpinpjlleaaziszhmnmxlbjozuyet_ulpkfipwqlgupixftglbnmpvfeoqybtvdpbarcaswndnj_kkprm_x_whmqxerqqmewyajcdrbrfehlsqwwfemyfhwebwtc_tygcumongjtwiibnegcpqstuvfkwnycnpgitowmkzu_khflawn' | |
| # step 1 | |
| frequencies = text.each_char.reduce(Hash.new(0)) do |frequencies, char| | |
| frequencies[char] += 1 | |
| frequencies | |
| end | |
| # step 2 | |
| sorted_chars = str.each_char.sort { |a, b| frequencies[b] <=> frequencies[a] } | |
| # step 3 | |
| answer = sorted_chars.join.split('_', 2).first | |
| puts answer |
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