advent-of-code

Perserverance, or the lack thereof

git clone git://git.shimmy1996.com/advent-of-code.git
commit 7b3b17c330c904af612faf4bd8c714aba92d0c8f
parent ca09aec198c98beade762f1cafad64d81d9383de
Author: Shimmy Xu <shimmy.xu@shimmy1996.com>
Date:   Thu, 22 Dec 2022 19:07:02 -0500

Add 2022 day 21

Diffstat:
A2022/day21/Cargo.toml | 10++++++++++
A2022/day21/input.txt | 2049+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A2022/day21/src/main.rs | 220+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 2279 insertions(+), 0 deletions(-)
diff --git a/2022/day21/Cargo.toml b/2022/day21/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "day21"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+regex = "1"+
\ No newline at end of file
diff --git a/2022/day21/input.txt b/2022/day21/input.txt
@@ -0,0 +1,2049 @@
+qlgz: 2
+zstt: 2
+rjtn: 7
+bzbn: bgsl * nzjp
+hwpf: 2
+wvql: brhr + hffp
+tbsp: 2
+ztst: tngr * dcmn
+pngb: 4
+rwqh: 3
+tqlt: 17
+bzzg: pshd * srfl
+zgwf: 13
+bwzq: nhln * njww
+ntds: ngtn - rlfh
+npgl: wflw + vqrq
+wzwc: vfsc + gqgh
+llrp: 3
+bwzg: zbpz + zbfc
+bnbm: cpms + wqvg
+lczp: vpsd - pqcp
+shwt: brns * phzt
+dqsd: tbrh + htzc
+wbzl: nffc + clhn
+vwzn: psqf / tmds
+jfls: tbwd - gtbs
+jdpp: crft - dwvs
+dmdl: zzhz * jgch
+zrbl: pltw * hhbh
+pnlg: 1
+hzqg: vdgh + rvts
+dngq: jfpq * gtdh
+rdlq: hvmt * wmqz
+qldh: 4
+zwsm: nhwh - rncq
+qntt: spbj * vhhv
+mnsl: hlrv - djqw
+nbpl: dppc / pjgw
+bspt: 3
+bwtc: 4
+vmdp: 5
+lbpb: hbnc * gblh
+dfzn: jrjp + hdsd
+wftf: shsn * ljfs
+vpbr: shzb + rdzf
+pccz: 10
+rvcc: 9
+brgn: 7
+cgbb: mzst + ltww
+qwfm: 3
+cpwm: fjlm * pmqs
+vmgv: lczp - lmlj
+cgtq: 2
+qvdg: rlrq * znsc
+nzjp: 4
+hthd: 12
+fjjb: 2
+grhv: shmv + cdpq
+zhll: 2
+bnrm: wlfc + ptgc
+zbnm: 5
+qqrp: 15
+bgth: 3
+dgsg: 2
+jsmm: szvf * pwcl
+crsv: qrqc + qvdg
+qnfh: vfbj * lmrp
+tqrs: qqzt - hjqh
+gcrr: vzhs - dvtf
+pdwv: swjn + gdqv
+zzrz: 5
+gcmz: qrwb / gssp
+hdsd: 6
+cnjz: 2
+wlhq: 18
+btsw: wzgg * hwdc
+lbzp: 5
+qzgm: ztnj * btvr
+hqdn: 2
+bmfv: 2
+jmbz: 9
+tvnb: vjws * ghlt
+qpgm: vqht * ppbn
+jhrc: 2
+cvnh: 3
+zcwr: zlwd + mjqc
+fwzd: pmjv + zmcn
+dlqq: 6
+wgbg: swwm + zphl
+crfc: 3
+nnnq: 3
+fprl: 3
+jfhp: 1
+gthn: 2
+trnn: 3
+fjlr: mfgc + rcph
+sptg: 2
+slhr: 6
+nrph: ttzt + dmsl
+qmfj: mvtd + ccfv
+bqcf: tfhg + hvcq
+jzzz: 3
+mbtg: ctdh + msgz
+dpjj: jdhs + mfwj
+btvr: 2
+vmzn: 2
+hwdc: 12
+mfnr: 2
+jdqp: 14
+sbgd: dgdg * fcwq
+vjbf: fpfn + rdlq
+gbgm: 5
+twft: 3
+mhtg: 2
+tsrb: 11
+rrnj: 4
+prdb: 3
+plzs: 4
+ftqr: 16
+zdsw: 4
+fdmm: 6
+mjnl: 2
+hfvg: 2
+rgvc: hhsf / lhjd
+bchg: 8
+gjcj: bqcf - czhp
+wztr: vfmp / nbtt
+zjqf: fsfc / zvtj
+zzjd: jdvs + pccz
+dnsv: hvcl / zqrh
+crwf: 3
+qhpp: lddz + zchd
+lhsn: qtcj - tplp
+zhfb: 4
+rcvw: 2
+lnmc: 3
+mdhq: tncm * mjwl
+fcwq: vflg / vmll
+tltt: ppdf + vcjn
+psds: qbbc + zdnr
+dmsl: ffbl / tnsc
+cfsr: 11
+brrc: 3
+nfwl: 7
+hljv: 4
+qbhv: 9
+tvrr: 11
+ppbq: 11
+vsrw: 9
+gcgp: dztp + fbmz
+tmpj: wrfl + bqvm
+dtgf: sldj / spqv
+wfhq: 2
+bjlf: 14
+vzqq: 7
+prtt: 2
+fsdz: 6
+dnnl: wbzl + bnzf
+nshn: 4
+mgzh: 4
+nbdh: 6
+zpnv: 3
+swwm: 3
+jfpq: nvrl + hnql
+gtbs: 1
+jjqb: 6
+zvvl: 4
+mgrg: mrfd + nqfn
+pjsc: fbnn + drzz
+bvcs: 14
+fmgh: jvsf + drgq
+mmhw: 3
+vrhp: 14
+fcwm: 2
+pgdh: 3
+snbc: cflt + gsvz
+mpqw: 2
+jvnq: cftv / gqfz
+rznt: mpwl * tssj
+llzj: mzdr * qflq
+ccdh: hcpv * bcpl
+lwrl: 4
+mvdj: lmwn * wmtf
+tszg: 2
+bvsj: 4
+scmt: 15
+plng: pftq * shcv
+hnrg: 3
+wtgw: 2
+lmnw: 4
+rsgn: 2
+cltp: sgch * szcc
+cjdw: ntrp * phmp
+qbnb: lbzp * ltbv
+qzww: 2
+psqf: wwzr * zswr
+hjqh: 5
+sfwq: 4
+dbfl: psjv * nbpl
+qvbd: 2
+rqwr: clwm / hhrd
+dfsl: 4
+fzpm: 3
+frmh: wpfh * jptq
+ltww: bgbh * bjrm
+whrt: 5
+tfgg: 6
+stcb: 4
+mflj: ncfr * lhsn
+fdjq: szdr * btcb
+zqpc: 2
+swtj: ppbq + vfwb
+mvnv: 2
+rsbg: bnzj * pnmt
+nlsf: 2
+spfl: ntlt * ghtm
+vfbj: 13
+vjgb: 15
+mvqw: 1
+mcdr: hqfq + dttv
+znsc: jfhp + gmqs
+jzvs: 3
+ngll: brrc * tchm
+gcjj: 5
+lzwn: hqdn * wfjb
+tzhv: nppz + wvnt
+tbrh: 6
+gpwq: qptb + wwhl
+cpwg: bzzg - smfj
+ttjs: 3
+zqrh: 2
+sdcr: flpw * cffg
+hrrq: 3
+rwtn: wfhq * zrfl
+drbh: qnzm * jljl
+pwsh: dpvd * lwtm
+wtwf: gmdg * jgrv
+gslv: hcbr + mgst
+hsch: phsv * rtrz
+fpmv: lsgz + bbrd
+hcpv: 5
+rdzf: 4
+drjt: 5
+tbth: gpzg + bsmg
+wjng: 2
+fnrt: 2
+rwmg: 13
+mmwv: vvqq + rtmm
+qstv: 2
+qntb: sglz - dqjm
+swdn: fchv + lvbm
+wswr: cdwn / rsgn
+mhjl: 3
+mqfv: 2
+dlqs: jwgn + cnjz
+rptt: 3
+bshd: nljl * rwmg
+jzjv: zqgv * tmvf
+vfhb: hfrw * hhqt
+spqv: 2
+vfwb: rrgf * nmrt
+vjtc: qvzc + bshd
+pprp: 3
+zbpz: mnjh + cgpw
+wvps: 11
+jzsc: 2
+hldj: splv * lrbs
+zdwr: hfft * qlgr
+brhr: 5
+hccd: gwqr + qwhp
+gtdh: 2
+gpfs: vhjt + jvsr
+nmdd: 3
+vqrq: mwgp * hgdm
+mfwj: lwln + jmhf
+gpwf: cmrj + pndc
+srwg: cgzq + zrbl
+zpbm: 8
+jmww: rhrv * trgg
+njvs: crcc + mgjm
+rlvh: 1
+dsmj: zhbf * rtlt
+tfgn: ptpr - mlvj
+ldvw: lwrl + bmgm
+fqff: 2
+gvmb: 5
+vlmw: 8
+sdvt: rvdl * nqdl
+prrm: tqzh * zzbp
+rtqj: 2
+ljvc: mflj - dnnl
+znvw: vwzn - tvnb
+hzlt: 5
+zwnc: zzrz * zbqw
+lbbs: vdhv + lmfg
+mdfc: wczw * glfc
+mphm: 2
+ncmd: dzvf + mftp
+lcdt: ndvg * scfd
+zssb: 4
+dwcc: 11
+fdbd: zpld * mpqw
+rszp: bpqp + fvtc
+ntlj: 3
+zchd: wrmt * jznb
+fcdj: pjmn - vdwb
+mdqq: 4
+dmjv: 1
+ftnf: 20
+bppd: 2
+nvdm: dmcf + mthv
+gnfc: zhdz + zlcr
+ccnw: 2
+lfnn: cnhr * cnjt
+bjdt: 14
+glfc: 2
+dfjh: 3
+ngnh: bbhp * lcrc
+rmsj: 4
+ppdq: fjsb * rmbv
+rvpd: shtc * nqwt
+svpv: 6
+lwbr: hsch + pbdf
+fdhq: hghc - bzcr
+sptn: hpmt * pqrl
+frsf: gqqc / rvst
+wcrt: 3
+stgr: dzpc + rplj
+gtsf: 3
+pjhq: rsrz / bdlt
+ctjp: 2
+pbbr: 4
+hlwl: bddc - wdsw
+lflg: wqcw * qlgz
+sqtd: wtwr + fzds
+sblw: 17
+cwlj: 4
+dsmf: 12
+wzpd: sblw + jlpj
+qrfh: 2
+bsbh: 10
+rhbh: qqrp + zhmn
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+mswz: pglf * fcwm
+clhn: lfrb * gqmp
+dsjm: vhws * vjqf
+qvzc: 8
+jggw: 3
+nwdc: mnzn + jsnj
+dwsz: tccc * wlqf
+tzlj: 4
+jndp: fcdj + qmrl
+gsvz: 4
+tljr: zpnv + jmmh
+lfjv: lmnh / ddrp
+zlsg: shvq * wvjv
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+ncwg: 3
+qbnp: 1
+mcsc: 3
+pjtn: 2
+wrbr: 11
+rbgv: jlgc + wqbg
+bjjb: 5
+snhj: bhhr - vmvj
+nsnb: lslc * rvsp
+ntqm: lznt * hmjj
+ljmh: wjjz + vlsf
+rlwt: hzgp * tdqp
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+wzhm: wphg + dshv
+hlqj: 5
+plhc: 3
+svzs: 7
+smtc: lbsm / dfjs
+ftwq: 2
+mtgw: lzvf * vzsb
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+vwrr: 3
+hqtm: cqqs * rqlg
+nqfn: tfnb * snhj
+vjmz: 2
+qnzm: 3
+dsbv: jzvs * mbtg
+vdhv: wmmg * hfzc
+bsbr: ffbf + rmjh
+bqfn: 5
+ptrp: lscj + hgvp
+hbnc: 4
+dwlz: mmbd * pzvz
+dlps: fcjl + hbbg
+qwss: crzw + dzzr
+vvvg: qttw + jdww
+hmjj: 11
+ltbv: 5
+rbhh: tbnm * dfjh
+pwrv: gdlh * hmvs
+zzgj: ztlc - dlgb
+vjqt: 3
+ljsm: vvhz * jlhc
+cmhw: 3
+lccr: hljw + gtws
+wvbw: rwqh * rchc
+mhrf: bsbr * mlfh
+gqzw: rrnt + schm
+zdrh: rgvc + svpv
+hvmt: 3
+ntsd: jjdq + qvzl
+vftv: vwrs * dsrf
+vpfj: ftfq * tljv
+dtjj: 2
+pltw: vpjz / hmsr
+ncjt: dhhv - zdrh
+nfmm: mrqw / qttt
+pclj: 5
+rsrh: 2
+scch: 2
+mzdr: jsbd * gzqj
+szvg: 2
+pljm: jwmq / cgtq
+wwhl: pwnq * sqzr
+whzj: 3
+dfmw: bchg * cltp
+fzvc: scch + rlbl
+jvqz: 12
+gdlh: jvnq - zhrr
+jhzc: bgcs + gnnt
+ntlt: 2
+jdhs: gtht + gwnf
+cjdl: fprl + qnwd
+pfnp: 3
+jhgq: tcsf - wpht
+pjsj: lsnb / mlfp
+tdbc: 2
+mlvj: srzp * lltr
+vqzg: fwcf + bnsh
+rqgs: 2
+bmqw: mdhq + hzhv
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+wtvz: 14
+dbsn: 2
+fvtz: gnfc * srcf
+wpht: fjsd * rjsd
+pftq: 14
+dttv: 1
+ptzb: lmhj + pnfv
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+ttvf: qtpn + qcwq
+lbnn: 3
+lnlj: 2
+glhf: zbnm * gslv
+bddc: snbc * ntsd
+svzg: 7
+rmlz: 2
+jnqb: pggt + rvcc
+mlfh: gvgd * hqhz
+hvtp: 3
+wpfh: vqsm + jvhv
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+tbgt: bqdm + nbsb
+plcm: fgww * jvlq
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+tqgg: qzgm / dbsn
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+mgst: zhhw * zcfs
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+wbfm: rbgv + jcmn
+vwrs: 2
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+dzsc: 3
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+jtbp: sbwh + zcjh
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+tdfq: dsmf * tdvn
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+hwzf: bspt * ftqr
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+gdqp: cmvh + jdzs
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+ncqw: lvbj + gcgp
+hfhd: jzzz * ntlg
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+tdbf: ssgs + lsbv
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+tzdq: gpdg * jzrq
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+gnnt: lzwn * nsjc
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+dsrf: 5
+vdhz: phjj / gtgq
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+bnsh: fjpl / fhvl
+znvn: 2
+cmvh: hbts * gbpz
+nstn: mgrg + bvcs
+dvdj: pczr * mhmr
+vmll: 2
+trgg: 7
+vbfp: wzqh + vnft
+cllb: djsj + hvlq
+ttlw: 3
+fpfn: bwbc + vsrw
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+zptt: gcgw + hvhb
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+pjjh: 2
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+hwsg: gbcf / mvnv
+prdn: ppgm * lqhq
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+tqld: 3
+crbr: qgms * lmvf
+drcf: 7
+vbth: 2
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+dwrg: 2
+mgjm: 5
+tljh: 9
+ndpn: 4
+zsbv: 4
+ztfp: 2
+lmml: jqmn + tsjr
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+lqfz: rljz + sfzn
+dzst: cvnh * hfvg
+mjht: mnsl / vmzn
+clrf: 3
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+gcgw: fdqz - vgjl
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+hscw: wsmc * jzsc
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+pncs: mwww * dnsv
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+vhjt: 4
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+hmsr: 2
+mbdp: jjqb + sdvl
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+nctg: wblg * gwrf
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+wnss: lbpb - ccnl
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+pfmv: gdqp / lnwj
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+zdsf: rvcm / wzwc
+mpds: ntbp * bvlg
+rbzm: ddnw + grcn
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+pqss: dwtq * qjcs
+cnqr: fjjq / bvpc
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+trmq: 10
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+hwdl: njvs * rvjp
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+dwzz: mcpw + rhbh
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+lsnb: prrm + pwrv
+pmnl: tfgg + pjhq
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+djqw: mmsl * qwfh
+gqqr: jqfq * ndcs
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+pvbd: wdmd * sjvh
+rlfh: 2
+cthc: wtcv - ghms
+vvgm: vmdp * qmrw
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+jctw: 2
+rqlg: tzps * lvtm
+nvrl: hghb * bgwq
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+lfmh: 4
+mcrw: 3
+gcvq: 3
+dtwj: 1
+wjpj: 5
+fdqz: hzzm - zzqt
+lqzm: 4
+srfl: 2
+cfsw: cllb + btlz
+qmrw: pjsj - rwjc
+lrbs: 3
+cpms: 2
+rpzj: 4
+tzbj: 15
+vlvb: sjjs + sqtd
+pwcl: 3
+hffc: nhsh * jtrm
+tdzj: pgmm * wvgt
+zcns: 7
+wdmd: 3
+lffs: jrnw + dwsz
+tmds: 5
+hrrc: vwfg + lzzb
+ppbl: 20
+cmrs: twtz + nhmt
+jtrm: 5
+ghtm: 19
+hfqb: 5
+jcmn: fttc + rvpd
+rhrm: 8
+hvcl: plzs * drvf
+mpnz: 4
+wwmb: zwlw * sclw
+mdcz: ntds + hlnm
+dcmn: bbgj + rzld
+pmqs: jmlm * cjvd
+djcd: rlmf * fflg
+pqrl: 2
+vlpp: tfhh * zvvl
+gtht: 1
+ljzw: 3
+tjzl: 2
+mnfl: 2
+qjlz: 14
+gblh: qwlc - ndrp
+pndn: dzrg * tncf
+jmrz: 4
+bjfp: bjmz * rlws
+mvql: 2
+fjhh: 3
+vsgp: 4
+bgqq: qzbf * hfld
+nvlt: sllb + ntsp
+sdvl: 1
+vhws: hmrq + bnbs
+hcrf: 9
+hblv: 2
+wjjb: 18
+dwrq: fsbg * cjvj
+glnv: pnnz * jgwm
+dbrg: zzgj / ngtc
+mvtd: fpmv * qwtz
+qtcj: 8
+zjnr: 3
+jvsf: 3
+rbjv: crbr + pwmz
+mwbd: gthn * ccbc
+wwzr: 5
+ggsm: 3
+vftc: 2
+pcdz: rwjr * qlnr
+bngl: rpbr * trhc
+rhrv: 3
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+sldj: 14
+nhdr: dbrg + jzbs
+wscl: zjrq * lbrn
+gctm: zlrg * mbgt
+gpcp: 13
+jwrr: 3
+flsl: bnbm + qvdh
+zwlw: qlzn * dqhl
+mhqv: 7
+hlnm: 3
+bcpw: 12
+lltr: 5
+rlnp: humn - qflr
+rvtw: sncz * rbms
+nmrt: 5
+bgsl: 17
+tjhv: 14
+gpnb: jqrh * qwns
+rvnt: nwdj * cdpn
+pjvm: rtqj * sgfw
+lmfg: wgcw + wtgw
+sglz: cnwq * rchv
+ftqm: rlwt + tbth
+rpzt: rznt * mljj
+mtzb: 4
+qvdh: 1
+lvtm: hlhz + hlcv
+pgwc: 10
+dhmt: 2
+ppdr: ppdq + ljmh
+trwd: ljbj + jnqb
+rplj: zzgq * tcbz
+jgwm: 5
+wtwr: wtdw + hthd
+vprc: qntb / prdb
+qdtm: qtcq + rnnj
+rjlc: 2
+fbjg: swtj + frsf
+vpwl: 3
+vhsg: 2
+pgmm: 3
+zggf: 3
+hcqw: 4
+fwtl: 5
+cfmd: 3
+gjfv: 13
+tbmz: pfmv + vcml
+njww: 10
+fcjg: 4
+bcpl: bfsw * qtsd
+vtjn: sqwg * tzmc
+pscc: rmvf * slrz
+hgvn: lqdl * qvbd
+wvnj: mbdp * zzlp
+swgs: 19
+wzps: 2
+lqvf: rlnp + bhzv
+crtr: vcdb + wdcs
+mthl: hrrc / mtzb
+gcvc: 2
+rcvb: pgzl * mmrh
+hbfl: rwvs + psnz
+shtc: vsgp + fmbt
+bgcs: 3
+ztlc: qmfj * drbh
+ncjp: vjhv * cfsc
+ccjv: 5
+chqq: rpbs * cjdw
+fpmb: 7
+pnfv: 12
+cnbn: 17
+vnft: 20
+qmrl: wfpc + swqs
+hbrm: tgjl + ftbc
+njdz: gbgm + mlbp
+qlpt: 4
+tmwl: hjht + lqlc
+jvcm: 6
+qvqf: 12
+hhqm: fzlb * gccp
+lmwn: 5
+zbgt: 5
+qlgr: 2
+tjhl: 4
+chdc: 4
+cvdp: 2
+qdjp: 2
+bzpg: 2
+fmbt: 4
+qbbc: cfsw + vfgn
+qgms: 5
+mqsz: 2
+ddjc: wgjc + nfnw
+chjr: 2
+hcsg: 1
+tgpt: 15
+rbnp: 11
+wwgs: 5
+jfrt: 3
+cdmt: spfl / gzfd
+dqjm: dbfv + cwlj
+qtsd: 3
+vmfl: 3
+cfsc: 2
+dbmw: 2
+ztdl: 2
+mmbd: nvdm * fcvl
+snts: ndpn * ppbl
+ppdf: 4
+cftn: 4
+rzpc: 19
+pshd: pljm + rpjw
+sfgb: 3
+btwq: 3
+wlfc: glnv + fnnc
+pslh: gtpr * jlrw
+rvts: 1
+grcn: 3
+plcb: 3
+rgvb: 6
+hfhw: 9
+fjlm: nszm * zrqw
+gwmh: 3
+hsdq: zdsf + ccdh
+ntjr: 3
+crcc: 2
+jgrv: 2
+zbpm: 2
+wlqf: 2
+pfjt: 2
+rqfl: nmqn * zpbm
+bqlm: 3
+mmsl: sgsz - vlpp
+wsvq: wrjm + ntlj
+sfzn: 7
+tjbw: 5
+rlbl: 5
+wjvg: dbsv + tzhv
+qcwq: hwdl / vscb
+zzhm: prdn + zftc
+smpv: rnvc * jjtn
+jvhv: ljvc - pjvm
+blfd: 8
+fvgz: tqrs + lrcd
+hghc: rsgb + qvdq
+cpgr: 1
+hvlq: lttj * prtl
+mzst: 5
+ppbn: 3
+qpzd: hbrm + lccr
+wjmf: dfsl + cjzz
+lfzp: flmh * tfgc
+bwbt: pqmc * gfns
+zmmh: 6
+rbms: rfnp + pqcz
+msgz: 1
+ddrp: 3
+ljfs: 4
+jdvs: 1
+mfms: wnlm - tltt
+phmp: 2
+nhmt: 5
+bgwq: lfcc + hpvf
+zzhz: 4
+fgqw: tdzj - hfhw
+vndv: mfnr * jqjs
+tbnm: 12
+qvzl: 6
+lscj: vftv + sqpt
+rvst: 2
+jcnn: lrwg + zgjf
+prbf: 1
+nzsm: 17
+zhmn: mbht * pftd
+lddz: 16
+qhmh: 2
+jmnc: 4
+jlgc: cpmq * fpbm
+tdmr: gshw + hvtp
+hfnq: 5
+jvcb: mhtg * zgrr
+mljj: 2
+tclq: 4
+dfmc: pwzg + bswp
+pwvr: pcpg * vjbf
+jdtn: wztr + rlvz
+rvhq: fpbf + plcm
+bwcl: vvpg * ctzw
+qnvw: hzfm * bdvh
+gbrl: qvqf - zwzf
+zbwc: 2
+rpbr: 3
+jmjc: sdcr + lpdj
+bpzr: fqzz * vfrw
+cccw: tbjr + zpmh
+hfbq: sptg * czlt
+vvqq: 4
+fcvl: 2
+ngtn: 10
+qjsd: 5
+ltmg: 2
+jdzs: dbfl * mstl
+szcc: 4
+nzcw: 13
+jlrw: wqzq + mvsr
+flpw: gpwf + vgrf
+pgzl: mnld * hrrq
+vfsc: 1
+ntpt: bnps + qlwr
+dvmq: hgpd * rmqz
+qvwg: wmzp * tmmc
+spbj: 3
+gdqv: mjnl * twnc
+zgjf: ncbl * dsft
+dzdl: 2
+vzbc: 2
+tdwn: 1
+rsjv: 3
+qwfh: tdrf + bdbl
+qrmt: 2
+jzhp: 2
+lzzb: dbnz * prtt
+lmlj: 2
+rjjg: 6
+gnzv: rvsh * llrd
+cdzr: 17
+tqgr: 2
+pswc: 3
+tsrz: 16
+jnnz: bnrm * rwnn
+gczm: 12
+fchv: 5
+wrfl: hsbn - lgsj
+fsbg: 5
+wtcv: bjjb + nbzm
+bqdm: tzdq * mpds
+lzqf: 3
+hchd: 2
+vfgz: 2
+dzht: 4
+bbhp: 3
+cmnv: pmnl + hbpr
+nqhr: qntt - zsjt
+ntsp: gqld * vzbc
+wjlz: 5
+stjw: hbdf + jfls
+nvjs: 3
+mrqw: plng * swgs
+dbdh: rmqv * gcvc
+qmwd: 3
+gcqq: mqfv * fhrt
+wtdw: 5
+fhrt: vvgm - jnnz
+fvtc: 3
+jbfw: vmgv * dfbt
+cprr: 2
+wcsd: qnwz * hmnj
+gfsp: ptrp * vsrl
+jstr: 4
+pphb: 5
+mwgp: lfzp + ffhr
+pwhv: 4
+hfrw: 8
+ftzc: 3
+shcv: 2
+pmvd: 2
+zbmr: 2
+dlfw: 1
+bbjb: 6
+sjvh: 7
+pwzb: 9
+lrhj: qdtm * bpld
+wtws: hldj - zsbv
+wpbw: 4
+wphg: tsrb * dzdl
+ghqq: btwq * whzj
+psrm: bpvn + tvll
+nbtt: 2
+zlcr: 3
+hgdm: pfrc * ngdv
+ffdw: 4
+psnz: wfnz + brgn
+jbwj: wjns * qdwv
+gtpr: 5
+qlln: wfqv + hcqw
+dqhm: zfbf + pwvr
+rmvf: 13
+ffbf: 6
+scqr: 4
+zdgq: trwd + vrhp
+zbvj: ntwz * wwtb
+jzbs: fzvc * cgtm
+cflt: fjhh + rhrs
+btlz: qhpp * tqgr
+wfpc: tmpj * ngll
+lslc: 2
+crft: fzqf + wzhm
+ppgm: gpfs * zflq
+vvhz: gvrq + pbbr
+ntqc: whrt * bpzr
+scbl: cgbb * vwrr
+ljfq: 3
+gvlv: 4
+tgmb: 2
+rtmm: 2
+grff: wvff / clbh
+wjjz: qlwn * pqhz
+gssp: 2
+hlrv: smpv * dwlz
+hzhv: tthb * zzjd
+tljv: 7
+lhjd: 2
+sflc: 14
+rtlt: nnvt + hgvn
+fjsb: qbvd + drjt
+mrvh: 2
+rlcd: 3
+jgch: 5
+vgrf: tzlj * zhfb
+rhhg: 7
+hpmr: pspm * vftc
+fcbf: 6
+zwgj: 2
+tqcp: 2
+ffhr: lqvf / nvlt
+gzzp: qwss / jzzm
+lznt: 2
+vlpt: 2
+zbcn: 3
+rpbc: gtwz + hbfl
+zwtb: jzjj * zvdw
+btlq: ljfq + mjqq
+hmnj: vfgz + fbfr
+msrg: 4
+fztj: qlbf + jwrr
+hpqs: wzps * spcl
+rwnn: 8
+rzzp: 2
+rjsd: zzdf + vrpd
+fgww: bqdn + stvq
+ddnw: 4
+hvlr: 3
+wqvg: 5
+nrms: mtcb / jncr
+cgpw: 8
+fhsn: 2
+rvsh: tbgt * fpsg
+ttzt: mpnz * djcd
+bqvm: 2
+dhhv: znmr * zjhz
+pbff: jlqb + jgcg
+zzvr: 5
+hbhv: 2
+gqqc: tclq * zzvr
+zpmh: bwzd / wrzs
+vcdb: 2
+bdqj: 3
+tnsc: 2
+cgzq: 3
+mdsv: dlps - ncmd
+zphj: zhvb * ffhp
+cnwq: dmjv + jvcm
+nfrr: 3
+hbts: 4
+pglf: tcwh + hjbn
+rnnj: 2
+rrnt: 5
+dpvb: 10
+wdcs: 5
+tdbj: 7
+phvv: 2
+pfgd: 2
+fcws: ghqq * qhmh
+jmhf: frdt / bqfn
+bhhr: 8
+lvbm: gvdh * mcsc
+fszh: mcrw * gndt
+wbvb: tdwn + mmwv
+jblq: zbmr * hlwl
+hjdw: 2
+gmqs: 7
+ljbj: mjhh - djdg
+splv: dzsc * crfc
+qwhp: 5
+rslf: mhrf + jdpp
+hlbl: 20
+dtsh: nqvj / rrbp
+zmqp: lssd + hljv
+sjcs: wvdj + jhjj
+bhzv: qwgf / bdqj
+jwgn: 5
+qnpv: 2
+vdpp: 4
+hghb: 3
+nrnj: 2
+flvm: 5
+cslh: 9
+lpmj: wwwp + vtzj
+wmqz: cmlr - shwt
+hllh: pscc * bmjb
+gfsw: 3
+rwjc: rscr * mvdj
+lsbv: 3
+zgql: cpwg / rptt
+wsqb: 3
+fdms: 5
+zrlp: 14
+zdrz: twft * jmjc
+dbws: cbgj + nqrc
+cgmn: mmfl * rpqs
+cbgj: 2
+ctqr: wrvc + qwfm
+lsfg: rjjg + htjt
+tsnj: ppjh * cmhw
+cfqb: wzpd * dlvd
+ftmn: 2
+dffc: gfsw * vdhz
+ftbc: 6
+zght: sbsm / mhjl
+zqzr: 11
+nbsb: svzs * zwtb
+qftr: tjnw + nrqf
+gbpz: mtgw / bzpg
+smgn: 5
+rljz: cvdp * cdbq
+czjl: 3
+nsjc: jnpt * lfdp
+wqcw: rszp + ntsw
+htsb: 2
+gpzg: ndnl - tmwl
+dpvd: lqzm * ftmn
+hwct: 3
+dzsh: 2
+jlhc: 5
+wqzq: 2
+hpgd: wvnj - fdmm
+bglq: 2
+wbps: 3
+lmrp: 4
+vfvs: 1
+rncq: 3
+dlvd: hffc + vjss
+hdnt: 14
+vlsf: vpwl * dwrq
+ljns: 4
+pftd: 2
+lqlc: 1
+pqcp: bvsj * jdqc
+wnlm: tqgg + bnfl
+mmtj: 19
+ntsw: cttj * qpgm
+lntz: 2
+nhln: schr / jctw
+qqvg: gsnz / zhll
+dgdg: 3
+vbrs: lzqf * rfvc
+fbmv: qbnp + fdjq
+ggrv: 5
+tpph: lqfz + mwbd
+hlhz: fcbf + szvg
+cwst: 2
+gwqr: 1
+npcl: snts + hllh
+sshl: 19
+hvhb: brqm * hpjz
+qlnr: 19
+vzdl: tsrz + qftj
+pnnz: 5
+hmvs: 4
+dnwl: dclt * lntg
+pqcz: tbrf * mbwm
+jzfn: 5
+mdjm: cdzr * bpbs
+scjh: 3
+pjcw: 4
+qwns: 2
+qdwv: crsv * flhw
+fcnm: tmwc + hnrg
+jztb: 2
+dfjs: 2
+mwbz: pphb * tpwg
+vfps: cmrs + mwbz
+nrqf: szqv + wzld
+mtrh: 4
+jrnw: qpzd * swcc
+mbwm: 2
+lrnz: nqhr * zntl
+tjfn: 4
+bdbl: 4
+hhzz: 3
+cdbq: trnn * zdsw
+vpsd: cwtc * vdjb
+hfzc: qdjp * hpmw
+zgrr: lgdv / ctqr
+rmqz: rpbc + drwl
+znmr: sdvt - zbcn
+nqrc: fbmv * rbnp
+qrqc: dvdj - dffc
+hhfp: 4
+bdhr: msmf + swcl
+lqnm: 2
+cppr: mcjp + nnzf
+ndcs: 11
+npwv: 4
+frww: smzd + tljh
+blcf: nfwl * fgqw
+pczr: 14
+shfm: ncqw - sjcs
+dtlj: 2
+cnjt: 14
+pnmt: fwzd + nfjl
diff --git a/2022/day21/src/main.rs b/2022/day21/src/main.rs
@@ -0,0 +1,220 @@
+use regex::Regex;
+use std::collections::{HashMap, VecDeque};
+
+#[derive(Debug, Clone, Copy)]
+enum Op {
+    Add,
+    Sub,
+    Mul,
+    Div,
+}
+
+impl Op {
+    fn calc(&self, a: i64, b: i64) -> i64 {
+        match self {
+            Self::Add => a + b,
+            Self::Sub => a - b,
+            Self::Mul => a * b,
+            Self::Div => a / b,
+        }
+    }
+
+    fn calc_poly(&self, a: &Vec<f64>, b: &Vec<f64>) -> Vec<f64> {
+        let mut res = Vec::new();
+        match self {
+            Self::Add => {
+                res = a.clone();
+                for (j, y) in b.iter().enumerate() {
+                    while res.len() < j + 1 {
+                        res.push(0.0);
+                    }
+                    res[j] += y;
+                }
+            }
+            Self::Sub => {
+                res = a.clone();
+                for (j, y) in b.iter().enumerate() {
+                    while res.len() < j + 1 {
+                        res.push(0.0);
+                    }
+                    res[j] -= y;
+                }
+            }
+            Self::Mul => {
+                for (i, x) in a.iter().enumerate() {
+                    for (j, y) in b.iter().enumerate() {
+                        while res.len() < i + j + 1 {
+                            res.push(0.0);
+                        }
+                        res[i + j] += x * y;
+                    }
+                }
+            }
+            Self::Div => {
+                res = a.clone();
+                for i in 0..a.len() {
+                    for (j, y) in b.iter().enumerate() {
+                        if j == 0 {
+                            res[i] /= b[0];
+                        } else {
+                            res[i + j] -= res[i] * y;
+                        }
+                    }
+                    if i + b.len() == a.len() {
+                        break;
+                    }
+                }
+            }
+        }
+        let len = res.len();
+        for i in (0..len).rev() {
+            if res[i] == 0.0 {
+                res.remove(i);
+            } else {
+                break;
+            }
+        }
+        res
+    }
+}
+
+#[derive(Debug, Clone)]
+enum Cell {
+    Num(i64),
+    Calc(Op, String, String),
+}
+
+#[derive(Debug, Clone)]
+struct Monkey {
+    id: String,
+    cell: Cell,
+}
+
+impl Monkey {
+    fn from_str(s: &str) -> Option<Self> {
+        if let Some(cap) = Regex::new(r"^(?P<id>[a-z]{4}): (?P<num>[0-9]+)$")
+            .unwrap()
+            .captures(s)
+        {
+            Some(Monkey {
+                id: cap.name("id").unwrap().as_str().to_string(),
+                cell: Cell::Num(cap.name("num").unwrap().as_str().parse::<i64>().unwrap()),
+            })
+        } else if let Some(cap) =
+            Regex::new(r"^(?P<id>[a-z]{4}): (?P<id_1>[a-z]{4}) (?P<op>[-+*/]) (?P<id_2>[a-z]{4})$")
+                .unwrap()
+                .captures(s)
+        {
+            Some(Monkey {
+                id: cap.name("id").unwrap().as_str().to_string(),
+                cell: Cell::Calc(
+                    match cap.name("op").unwrap().as_str() {
+                        "+" => Op::Add,
+                        "-" => Op::Sub,
+                        "*" => Op::Mul,
+                        "/" => Op::Div,
+                        _ => unreachable!(),
+                    },
+                    cap.name("id_1").unwrap().as_str().to_string(),
+                    cap.name("id_2").unwrap().as_str().to_string(),
+                ),
+            })
+        } else {
+            None
+        }
+    }
+}
+
+fn main() {
+    let input = std::fs::read_to_string("input.txt")
+        .unwrap()
+        .trim()
+        .split('\n')
+        .map(|s| Monkey::from_str(s).unwrap())
+        .collect::<Vec<Monkey>>();
+    // 364367103397416
+    println!("Part 1: {}", part_1(&input));
+    // 3782852515583
+    println!("Part 2: {:?}", part_2(&input));
+}
+
+fn part_1(input: &Vec<Monkey>) -> i64 {
+    let monkeys = input
+        .iter()
+        .map(|m| (m.id.clone(), m.clone()))
+        .collect::<HashMap<String, Monkey>>();
+
+    let mut results = HashMap::new();
+    let mut stack = VecDeque::new();
+    stack.push_front("root".to_string());
+    while let Some(id_curr) = stack.pop_front() {
+        match &monkeys.get(&id_curr).unwrap().cell {
+            Cell::Num(x) => {
+                results.insert(id_curr, *x);
+            }
+            Cell::Calc(op, id_1, id_2) => match (results.get(id_1), results.get(id_2)) {
+                (Some(a), Some(b)) => {
+                    results.insert(id_curr.clone(), op.calc(*a, *b));
+                }
+                (res_1, res_2) => {
+                    stack.push_front(id_curr.clone());
+                    if res_1.is_none() {
+                        stack.push_front(id_1.clone());
+                    }
+                    if res_2.is_none() {
+                        stack.push_front(id_2.clone());
+                    }
+                }
+            },
+        }
+    }
+    *results.get("root").unwrap()
+}
+
+fn part_2(input: &Vec<Monkey>) -> i64 {
+    let mut monkeys = input
+        .iter()
+        .map(|m| (m.id.clone(), m.clone()))
+        .collect::<HashMap<String, Monkey>>();
+    if let Cell::Calc(_, id_1, id_2) = &monkeys.get("root").unwrap().cell {
+        monkeys.insert(
+            "root".to_string(),
+            Monkey {
+                id: "root".to_string(),
+                cell: Cell::Calc(Op::Sub, id_1.clone(), id_2.clone()),
+            },
+        );
+    }
+    let mut results = HashMap::new();
+    let mut stack = VecDeque::new();
+    stack.push_front("root".to_string());
+    while let Some(id_curr) = stack.pop_front() {
+        if id_curr == "humn" {
+            results.insert(id_curr.clone(), vec![0.0, 1.0]);
+            continue;
+        }
+        match &monkeys.get(&id_curr).unwrap().cell {
+            Cell::Num(x) => {
+                results.insert(id_curr, vec![*x as f64]);
+            }
+            Cell::Calc(op, id_1, id_2) => match (results.get(id_1), results.get(id_2)) {
+                (Some(a), Some(b)) => {
+                    results.insert(id_curr.clone(), op.calc_poly(a, b));
+                }
+                (res_1, res_2) => {
+                    stack.push_front(id_curr.clone());
+                    if res_1.is_none() {
+                        stack.push_front(id_1.clone());
+                    }
+                    if res_2.is_none() {
+                        stack.push_front(id_2.clone());
+                    }
+                }
+            },
+        }
+    }
+    let res = results.get("root").unwrap();
+    println!("Polynomial: {:?}", res);
+    // assume greatest power of 1
+    (-res[0] / res[1]) as i64
+}