diff --git a/src/days/day11.zig b/src/days/day11.zig
index 5e7686a..d16d9d5 100644
--- a/src/days/day11.zig
+++ b/src/days/day11.zig
@@ -1,120 +1,7 @@
 const std = @import("std");
 
-pub const title = "Day 11: Reactor";
+pub const title = "Day 11";
 
-pub fn run(allocator: std.mem.Allocator) !void {
-    const input = @embedFile("./input/day11.txt");
-    //const input =
-    //    \\aaa: you hhh
-    //    \\you: bbb ccc
-    //    \\bbb: ddd eee
-    //    \\ccc: ddd eee fff
-    //    \\ddd: ggg
-    //    \\eee: out
-    //    \\fff: out
-    //    \\ggg: out
-    //    \\hhh: ccc fff iii
-    //    \\iii: out
-    //    ;
-    //const input =
-    //    \\svr: aaa bbb
-    //    \\aaa: fft
-    //    \\fft: ccc
-    //    \\bbb: tty
-    //    \\tty: ccc
-    //    \\ccc: ddd eee
-    //    \\ddd: hub
-    //    \\hub: fff
-    //    \\eee: dac
-    //    \\dac: fff
-    //    \\fff: ggg hhh
-    //    \\ggg: out
-    //    \\hhh: out
-    //    ;
-
-    var lines = std.mem.tokenizeScalar(u8, input, '\n');
-
-    var devices: std.StringHashMap([][]const u8) = .init(allocator);
-    defer {
-        var outputs_iter = devices.valueIterator();
-        while (outputs_iter.next()) |value| {
-            allocator.free(value.*);
-        }
-        devices.deinit();
-    }
-
-    while (lines.next()) |line| {
-        const device = line[0..3];
-        std.debug.print("device = {s}\n", .{device});
-
-        var outputs: std.ArrayList([]const u8) = .empty;
-        defer outputs.deinit(allocator);
-
-        var outputs_iter = std.mem.tokenizeScalar(u8, line[5..], ' ');
-        while (outputs_iter.next()) |output| {
-            try outputs.append(allocator, output);
-        }
-
-        const outputs_slice = try outputs.toOwnedSlice(allocator);
-        errdefer allocator.free(outputs_slice);
-
-        try devices.put(device, outputs_slice);
-    }
-
-    var cache: std.StringHashMap(usize) = .init(allocator);
-    defer cache.deinit();
-    try cache.ensureTotalCapacity(devices.count());
-
-    const dac_to_fft = try visitOutputs("dac", "fft", devices, &cache);
-    const svr_to_fft = try visitOutputs("svr", "fft", devices, &cache);
-    cache.clearRetainingCapacity();
-
-    const to_fft = if (dac_to_fft == 0) svr_to_fft else dac_to_fft;
-
-    const dac_start = if (dac_to_fft == 0) "fft" else "svr";
-    const end_start = if (dac_to_fft == 0) "dac" else "fft";
-
-    const to_dac = try visitOutputs(dac_start, "dac", devices, &cache);
-    cache.clearRetainingCapacity();
-
-    const to_end = try visitOutputs(end_start, "out", devices, &cache);
-
-    const result = to_fft * to_dac * to_end;
-
-    var buffer: [8]u8 = undefined;
-    var stdout_writer = std.fs.File.stdout().writer(&buffer);
-    const stdout = &stdout_writer.interface;
-
-    try stdout.print("{d}\n", .{result});
-
-    try stdout.flush();
-}
-
-fn visitOutputs(
-    start: []const u8,
-    end: []const u8,
-    devices: std.StringHashMap([][]const u8),
-    cache: *std.StringHashMap(usize),
-) !usize {
-    if (cache.get(start)) |result| {
-        return result;
-    }
-
-    var paths: usize = 0;
-    const device = devices.get(start);
-    if (device) |outputs| {
-        for (outputs) |output| {
-            if (std.mem.eql(u8, output, end)) {
-                paths += 1;
-            } else {
-                paths += try visitOutputs(output, end, devices, cache);
-            }
-        }
-        try cache.put(start, paths);
-        return paths;
-    } else {
-        std.debug.print("device {s} not found\n", .{start});
-        return 0;
-    }
+pub fn run(_: std.mem.Allocator) !void {
 }
 
diff --git a/src/days/input/day11.txt b/src/days/input/day11.txt
deleted file mode 100755
index 1c6713e..0000000
--- a/src/days/input/day11.txt
+++ /dev/null
@@ -1,609 +0,0 @@
-smx: otc
-mmh: gvp
-gbo: hyf alz
-laa: vky qjq
-vrn: tbs tsr jix
-xyl: xel eur wdj
-sxm: out
-wsd: kua hpv jep
-qsj: ulu xel eur wdj
-xwa: mtd xxf hnw
-kai: ehr kaj
-uuj: you
-owb: ixr bps pim eez ejn syt qrx hxw vsy ghl gfu cgh mpk kfj
-vky: owb wlw qic
-ysd: mkp jbf btz xgg gbk tvg iju amm dws ykz azc blh xld rpr uek rcl zzy jhu
-rbc: ski xyl sdx wpw
-zmc: pal lwb rns hex
-cuu: vyo
-bqf: kmy exx ish
-jbv: ysa
-aog: ayv kwq
-fcq: qic xss owb
-hyg: out
-xoz: llx kra cqn bzn swe tdo vnz zos duw
-gnq: eya
-qmk: fcq lyd
-ggp: brz eya
-oit: yyy quh brz
-hjl: dtj lnc jps fyr
-sqg: xbz upq
-nil: diq
-xqa: jei ipw tkt
-ond: fft jko dqj pxe
-and: ahn izm esa
-cqf: xss
-rqa: ryb rwu ono fyb
-jps: byj fmv shn
-ccg: ond afk tbu
-dta: ctq jbw whr smq
-ztx: hlm ctr vgo maf fkj
-sdx: xel eur
-xwb: dds
-clh: ktb
-rtn: quh eya
-dac: nxc vug eou
-nvh: kmf yga wtv
-xgw: kep unr lju mtm
-mdx: qmk fwk fbd
-tbu: fft dqj pxe
-vil: lyz aek
-ona: zjk ovx dmv laa
-bld: zbs
-rms: vjs znm
-oku: brz yyy
-bzn: dmc fwa ykh vrn axj
-uzl: ayv fuz qhs kwq
-bhz: ggv
-kfj: xqa ucr akl
-koi: szi
-mvo: dqp kjr rbc
-rof: vgo hlm
-ixt: jws nxc vug
-ycf: out
-dmc: tsr
-nam: mvo
-rkj: quh yyy eya brz
-qxk: uty
-lwb: phc esx
-fqf: isr dax
-eou: lqz ysd
-lbb: out
-hyf: fgh wem yen taw
-dfv: nzl
-pnh: lai
-jon: eya
-guf: shn
-lmw: hlu mhq
-jff: ngn gye
-xxj: guf dtj lnc
-fbd: fcq lyd
-idw: cmg phc
-zbs: hjl
-lqz: blh ttg ykz jhu zzy uek rcl bld xgg gbk mkp amm iju tvg
-shn: goi
-hdc: wap pvr
-odf: yey ggp jtc
-rkk: zyi ubs
-fyr: fmv vtv
-pxe: ztx mmi
-ntf: dds cst aff
-lyz: gwp
-pyt: zpv ias oiz
-cqx: rod jnp
-dtj: shn vtv
-gfu: kai ctq
-ycw: ryl ixt uut dac
-yvb: jbv rms fez
-lvx: tvz vyo
-pvr: yat
-oiz: zjk ovx dmv
-biy: tdg
-xbz: cqf
-obk: jje
-jcc: ssq daa
-elu: ihl kep lju unr
-jgf: qfx bhz
-wbp: xxj cap hjl
-nne: out
-llx: axj ykh
-kso: kuk ams
-eod: nzl aap
-ryl: nxc
-epd: eou jws ats nxc vug
-wqg: uzn yyf
-qhh: lqz
-fhu: hex idw pal
-ipt: ema
-vpo: cap xxj
-thl: azd otc
-ttg: vpo
-uty: owb qic
-brz: mdl eiw gam aog nam wqg jcc kgs nac bsk zpk kul snr uzl
-faw: out
-lzw: wlw xss owb qic
-wap: iel yat qhh paa
-ffr: vnn fiv
-nug: sqg eyp sws eai dsh icy zrp mas dmf ccg hoq qze qde cqt zvl jrq gep
-ygk: jon oit
-eya: ppx nac mdl dej
-lnc: byj fmv shn
-nhq: kjv
-biq: lav xhe vcg
-hfn: pvr ydj
-leg: oii zad jje
-fft: rof taz
-maf: qic
-aap: rkj hrs svl
-axv: esa
-zou: ulu eur xel
-jtc: yyy
-pxc: gvr dyo omt
-byj: nqz goi faw
-ykh: jix tbs tsr
-fai: cst nug aff
-oty: nhq
-cek: vvv ubs zyi
-ufu: zen
-xtk: kpg tap qzv
-kil: dds aff
-ojk: lqz
-aly: qak lqz
-xxf: aff cst dds
-yua: oit ktb rwv
-vlf: ujz
-lbw: zyi uuj
-zpk: nhp urn ctg
-kuk: you ysd qak
-tmy: esa
-sqi: quh lvi
-jrq: obk leg
-yat: lqz
-atl: zpv ias oiz ona obm
-xhe: asz jbv
-gdx: oii jje
-ssq: fqf tap kpg qzv
-quh: snr kul zpk bsk nac ufu yor dej ppx aog nam wqg eiw mdl
-bvn: luk
-zny: jon ktb rwv
-jzw: aap plm
-jqp: dac
-mpk: euv llh
-fpr: gwp zmc ulq fhu
-ahn: qtl rtn
-zyi: lqz ysd
-ypn: mtd xxf
-fgh: rkk
-vgo: xss owb wlw
-axj: jix tsr
-kgv: kpg
-gfa: ona obm zpv ias
-eur: eij vil oxs xip hsd hdc gbo laz rnq lnj nuk xck twd jqp ycw btu abg koi cey hfn
-bsk: oqd hmt kew
-wrx: tas
-jix: aff nug cst dds qvv
-blc: yan
-rwv: yyy quh eya brz
-exx: blc dks
-ujz: mwp
-yyf: xya xmb fee
-icq: mtm
-hxw: viq eod
-xii: fyb
-lyb: drx mlf pkl
-puw: ona ias
-ilj: qfx xph
-wlw: gfu ghl vlf cgh mpk yfx pbj qrx hxw jsq eez syt dta ejn bps hnj pim
-icy: xbz
-wdr: gbm kil
-svl: lvi
-dax: wdj eur
-fwa: jix tsr
-fyb: you ysd qak
-whr: ehr kaj ogx nvh
-agb: mag yan
-duw: luk yzp nil
-plg: yen taw fks wem fgh
-zrp: pyt puw qyk gfa atl
-phc: you qak lqz
-aff: qze hoq qde mdx zvl jrq sqg dsh eai zrp icy mas dmf
-ulu: lnj xck twd jqp btu ycw abg koi gqf hfn eij vil oxs xip nhi hsd hdc kku laz rnq
-ezt: nug cst qvv dds
-ccu: yyy brz eya
-nuk: zpf
-ubs: ysd
-qyk: ona oiz
-kua: wlw xss qic
-ssa: kua
-uds: ier vnn fiv
-cbw: gvr
-pln: wdj ulu
-zos: htz ilj
-viq: aap nzl
-azd: jff
-esa: rtn oku
-rzd: eya brz
-syt: euv cbo
-drx: tdg
-qjq: xss owb
-jru: aat eoy dqu
-vms: bzf gkm ffr uds
-zen: vms zuv vci
-qfx: wdr
-amm: wbp vpo evr jmb zbs
-hnj: sxp viq jzw
-vtv: goi
-kep: xnp yoh evy
-evr: cap
-gvp: yyy brz lvi eya
-kxs: rod jru uvb
-daa: jlo
-fks: lbw cek
-omt: dds
-gtx: out
-jws: lqz qak
-eoy: out
-qvv: fes dmf icy zrp eai dsh iyb sqg eyp sws gep jrq mdx zvl qfd qde qze hoq ccg
-smq: kaj
-kmy: agb
-qde: atl
-fez: znm mvj vjs
-cey: wrx ryw lbx
-ema: brz eya lvi quh yyy
-zfg: cst nug aff qvv
-pim: yip pxl ujz
-zge: lzw
-ykz: yrg bss smx
-yyy: snr zpk uzl ufu bsk dej yte kgs gam eiw wqg
-yor: kew
-cmg: lqz qak ysd
-xya: zou pln uaz
-zpv: laa
-yen: cek rkk fce iwk
-boc: eay hlu
-ygu: xya ofj
-xnp: oic zfg eft xwb
-nlb: izm
-fmv: nqz
-mag: aem wtx qrc pyc ipu
-tdo: jgf
-znm: sxm lbb
-mtm: xnp
-khk: ipt qvi
-vyo: eur wdj
-kye: out
-uvb: dqu aat yvz
-xck: lyz fpr aek arq
-acb: wtv gts
-gep: qxk upq
-ihl: xnp yoh
-eyp: qyk
-lai: qsj
-ipu: out
-isr: ulu
-qrc: out
-jhu: bqf
-eij: uut dac ryl epd
-tvg: yrg thl mvu bss
-pbj: ucr
-cst: ccg sws hoq qze dsh qde cqt
-yzp: xwa diq cft ypn
-uut: eou ats
-fee: zou
-dqj: mmi taz rof ztx
-rnq: arq aek
-yfk: yvb zzh
-lvi: jcc dej mdl gam aog nam zpk kul uzl ufu bsk nac
-tap: sxw
-jsq: dfv sxp viq jzw
-tdg: aff nug cst dds
-cgh: tmy oze nlb and
-qzv: dax
-jtn: xhe
-kjr: ski wpw sdx xyl
-ski: wdj xel
-oqd: zuv
-ppx: zen hmt kew
-vcg: jbv
-jbw: nvh
-ctg: dqp
-dcv: owb wlw qic
-kzs: rxd lai cuu lvx
-dws: bss yrg thl mvu
-ara: dds qvv cst nug aff
-ctr: owb wlw
-ctq: ehr kaj acb
-zpf: fgh fks
-pyc: out
-ras: gvr omt
-iby: xxb rqa vlx
-gam: mah ygu uzn
-ulq: idw lwb pal
-gkm: ier
-cqn: pdv elu
-tvz: ulu
-obm: laa
-btu: alz
-wtx: out
-xel: oty oxs vil eij hsd nhi hdc gbo kku lnj ycw btu jqp xck gqf hfn cey koi abg
-uxa: lwb hex rns
-yga: gnq
-ppv: lav xhe vcg
-upq: hzh cqf lzw uty
-mvu: otc exw
-yrg: otc azd
-kul: qsu xtk ssq daa kgv
-pif: mbd bzn mzo xhj wee jdf
-xhy: wus khk mwp
-ehr: wtv gts yga
-fes: zge
-rwu: you qak ysd lqz
-hnw: cst
-goi: out
-hsd: alz zpf amk
-hzh: wlw xss qic
-lbs: vlx rqa
-dds: mdx zvl qde qfd qze jrq zrp icy iyb dsh eyp sqg fes dmf mas
-tsh: hpv kua
-svr: xoz lak pif ryf dyv
-gua: hlu
-jei: jtc ggp
-wpw: xel eur wdj ulu
-jbf: biq jtn hut ppv yfk
-hoq: qmk fwk cxr fbd
-blh: evr vpo zbs jmb
-mas: gdx
-afk: jko pxe
-zzy: lmw boc
-vsy: tmy oze axv and
-htz: xph qfx bhz
-yte: mah ygu uzn rcr
-zuv: bzf gkm ffr uds
-yvz: out
-ejn: dok llh euv
-jlo: dax isr
-qvi: gvp ema rzd
-mdl: mah
-wdj: hfn gqf cey koi jqp twd lnj rnq gbo kku hdc hsd oty vil eij abg ycw btu xck nuk nhi oxs
-ias: dmv zjk ovx
-laz: nhq
-ish: blc
-pkl: ezt ara
-xhj: elu
-tlp: ais
-mux: zrm uvb
-vci: bzf gkm uds
-nie: wtx aem qrc
-ike: wdj xel ulu
-abg: pvr wap
-ono: lqz
-yip: khk
-oze: ahn izm
-lak: bvn mbd llx xhj lyb pxo
-dmf: obk leg
-wus: ipt qvi
-oic: nug cst qvv dds
-rpr: ifc fjg mfu
-vvv: qak
-qtl: lvi brz quh yyy
-rqt: pdv icq
-yoh: eft ntf oic
-aby: nug dds
-yfx: axv tmy
-xmb: uaz pln
-hrs: brz quh yyy
-eez: llh cbo
-lyd: qic owb xss wlw
-dyo: dds qvv aff cst nug
-evy: xwb eft ntf
-plv: esz ktb jon
-luk: xwa ypn
-nqz: out
-ier: wdj eur ulu
-yey: quh eya lvi brz
-otc: svv tlp jff
-qze: leg gdx obk
-aek: gwp ulq
-mah: xmb fee xya
-pxl: khk xux wus
-wem: iwk cek lbw rkk
-nhi: uut ryl epd
-cui: out
-qak: ykz xmj jbf rpr xgg blh
-qwm: eya lvi brz quh
-dsh: zge qxk upq xbz
-hmt: zuv
-bss: azd otc
-rxd: vyo qsj
-eay: uhs mux kxs
-vnn: ulu wdj eur xel
-iju: ckk lmw gua
-fiv: wdj eur xel ulu
-izm: rtn oku
-xld: fjg mfu ifc
-xph: ggv nqb
-ija: rxd cuu
-tsr: nug cst aff dds qvv
-uaz: ulu wdj eur
-ats: lqz you qak ysd
-cft: xxf aby
-taw: iwk cek lbw rkk
-rns: ojk phc
-qic: vlf eez cgh yfx dta syt bps hnj jsq
-gqf: zpf amk plg hyf
-ryb: qak
-tbs: nug aff qvv dds
-gbk: yfk
-eiw: mvo ctg urn abp
-kpg: sxw isr
-pal: phc ojk esx
-ais: nne hyg kye ycf
-fjg: kmy
-uzn: fee xmb
-hpv: owb xss wlw qic
-hlu: mux cqx
-azc: ckk lmw boc
-dqp: xyl ike
-aat: out
-fuz: srk pnh ija
-ypw: jgf
-pdv: kep
-dmv: qjq vky
-fya: llv iby lbs
-plm: rkj
-xux: ipt qvi mmh
-gye: kye gme
-zzh: fez asz rms
-snr: ayv fuz qhs
-ydj: qhh akg paa
-rcr: ofj fee xmb xya
-kaj: wtv kmf yga
-lju: yoh evy
-ebo: sqi jtc yey
-vlx: rwu ryb ono
-tas: xxb xii
-wee: pdv xgw
-fkj: owb wlw
-xro: ilj htz jgf
-hum: lqz ysd
-kku: bsy aek lyz
-euv: clh plv yua ygk
-akl: ebo jei tkt odf
-lnj: fya lbx
-lbx: iby lbs
-mhq: cqx uhs
-hut: vcg zzh
-szi: mnj ams
-ysa: sxm rni lbb
-vug: you
-llh: ygk yua zny plv clh
-nzl: hrs
-uek: mvu
-mmi: maf vgo hlm
-eft: dds cst
-dok: zny yua clh plv
-kmf: npf lef nsp
-mnj: you qak ysd lqz
-paa: qak you
-ghl: xhy
-ggv: kil gbm fai lvh
-jje: ssa
-jko: mmi
-srk: rxd
-yan: ipu
-nxc: lqz you qak
-gts: qwm npf lef gnq
-qrx: kai smq whr
-ovx: oiw
-unr: evy xnp
-kew: vms vci
-sxp: aap
-oii: tsh wsd
-cbo: ygk clh
-xip: wrx lbx
-sws: ond tbu
-abp: rbc
-tkt: ccu ggp
-diq: xxf mtd hnw
-gvr: nug cst
-ipw: jtc ccu
-arq: uxa gwp ulq
-iwk: vvv uuj aly zyi
-mfu: exx kmy
-dks: nie mag
-twd: fpr lyz arq bsy
-fwk: lyd
-jnp: eoy aat
-nsp: brz eya yyy
-xss: vsy bps ixr hxw syt pbj kfj gfu
-nac: kgv xtk qsu
-oiw: qic xss owb wlw
-svv: ais gye
-mtd: cst dds qvv
-ixr: and nlb axv
-jdf: pxc cbw
-dyv: dea wnr xro ypw xlu
-qfd: afk ond
-wtv: qwm nsp
-xxb: rwu ryb fyb ono
-wnr: xgw elu
-uhs: uvb zrm jnp rod jru
-asz: mvj vjs
-eai: gfa puw
-ofj: uaz
-vnz: pkl
-kgs: mvo urn abp ctg
-fce: ubs uuj vvv
-pxo: vrn fwa dmc ykh
-cxr: lyd fcq dcv
-xgg: ifc
-mzo: biy pkl mlf
-gwp: pal idw rns hex
-you: dws amm iju tvg bld xgg jbf btz mkp jhu uek blh xld ykz ttg azc
-jep: wlw xss
-nqb: lvh
-zrm: yvz eoy aat cui
-zmm: odf ipw jei
-kjv: qak ysd
-akg: you ysd lqz
-lvh: qvv dds aff cst
-ogx: gts yga
-urn: kjr rbc
-bsy: uxa fhu zmc gwp ulq
-lav: asz fez
-exw: svv
-esz: lvi
-sxw: eur xel
-ams: lqz
-qsu: fqf kpg tap
-bps: akl zmm xqa
-ayv: srk pnh ija kzs
-gme: out
-oxs: szi nhq kso
-hex: esx hum ojk cmg phc
-xlu: luk
-aem: out
-mlf: ara
-kwq: srk pnh kzs
-jmb: xxj cap
-dqu: out
-iel: ysd
-ucr: ipw
-cqt: fbd qmk fwk
-nhp: dqp kjr
-ifc: ish
-llv: rqa xii xxb
-dea: luk yzp nil
-ngn: nne gme ycf hyg
-ryf: xlu rqt swe bvn lyb duw cqn bzn jdf wnr wee ypw pxo vnz xhj zos
-lef: brz quh
-mbd: pxc
-cap: dtj guf
-rcl: wbp evr vpo jmb
-zvl: fbd cxr fwk
-btz: lmw gua
-ktb: brz yyy
-taz: ctr hlm vgo fkj
-mkp: jtn hut yfk ppv
-iyb: afk tbu
-gbm: nug dds
-swe: ras
-ckk: hlu eay
-rni: out
-bzf: fiv
-qhs: ija
-rod: yvz
-amk: yen taw
-vjs: rni sxm
-hlm: owb xss
-zjk: oiw
-mvj: gtx rni
-ryw: iby llv
-npf: quh brz lvi
-zad: ssa tsh
-esx: lqz ysd
-mwp: mmh
-alz: wem yen
-kra: luk nil
-xmj: smx
-dej: kew