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added day03

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This commit is contained in:
Timo Schneider
2024-12-08 10:58:48 +01:00
parent fe62f80771
commit 94cd880183
11 changed files with 228 additions and 3 deletions
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5
Cargo.lock generated
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@@ -8,6 +8,7 @@ version = "0.1.0"
dependencies = [
"day01",
"day02",
"day03",
]
[[package]]
@@ -17,3 +18,7 @@ version = "0.1.0"
[[package]]
name = "day02"
version = "0.1.0"
[[package]]
name = "day03"
version = "0.1.0"

5
Cargo.toml
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@@ -7,5 +7,6 @@ edition = "2021"
opt-level = 2
[dependencies]
day01 = {path = "src/day01" }
day02 = {path = "src/day02" }
day01 = {path = "src/day01"}
day02 = {path = "src/day02"}
day03 = {path = "src/day03"}

7
src/day03/Cargo.lock generated Normal file
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@@ -0,0 +1,7 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "day03"
version = "0.1.0"

6
src/day03/Cargo.toml Normal file
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@@ -0,0 +1,6 @@
[package]
name = "day03"
version = "0.1.0"
edition = "2021"
[dependencies]

6
src/day03/input03.txt Normal file
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@@ -0,0 +1,6 @@
(%%from() when()mul(73,623)when()mul(793,458)'~where()how()?how(569,237)/[mul(709,198)mul(395,622)$!what()select()^@/what()+mul(970,343)mul(75,7)^))mul(61,40)select()~why())'>where()%+mul(892,307),!(mul(412,807):*&what()+^why()<^why()mul(706,931)'{who())why()^?mul(953,62)(mul(461,410)when()don't()>^@<%who()'mul(365,15)(<^<# (where()mul(802,710)why()*[( where()where()mul(684,352)&)&what()^<[>mul(246,913)+select()?how(489,271)when() }why(627,30);don't()+&<@where()when()mul(636,990)]/mul(767,759):mul(328,474)([^,-select()?(mul(825,353)select()where()*where()what()*-@mul(765,991)where(786,744)'--where()mul(990,947) mul(547,706)from()?mul(229,193)where(617,453)+@&where()]@%}/mul(128,550)<%mul(3,636)don't()^(+#>+mul(66,503) select()#when()%from()mul(59,150)how(),when()^:mul(614,438)where()*<[where();(mul(434,344) /how()$ (%?~when()mul(659,534)mul(809,367) where(42,397),);? ++select()mul(858,771)<*mul(106,962)^>@;# @?,*mul(208,462)'',)mul(762,748)+[?}>][^mul(126,384))@]): /(('mul(966,704)who()what()~%*]from()mul(825,633)~$)+ &mul(634,698)(how()<@why(102,647)mul(661,112)]&<(%&mul(25,649)who()select();mul(267,405)why(356,766)why()(where(),select()^)mul(552,557){!from()^&>>+mul(493,578)select(742,239):how(){^mul(836,239)who()/)-mul(259,726)how()-;where()[#@from()~mul(495,301);>[;mul(478,953)$#[*why(),{mul(774,653)how()^mul(469,614)!what();-->>;mul(369,74)$who()who()mul(311,382)< ![>?$mul(909,70)!+$how(257,485)<mul(278,404)] where()':mul(824,974)when(),;&@-?~>mul(377,363)where()&why()-/:(mul(285,466)where()(what()why()[where()&who()mul(701,477)(where(),-why(){mul(624,21)where()[,why()-!?+mul(937,219) mul(604,90)how()(')]why()/mul(627,697)*;what()/$select()do()~<from()%-^mul(605,52)>@%!&select()>['mul(597,962)why()where()mul(903,469); &,do()when(937,722)((~why();^mul(588,272);}?[mul(295,621)from(645,893)>]>#mul(900,24)>,;mul(574,932):}(-do()from()-+<'$how()mul(694where())select()){how()how() (mul(350,308)/{)}why()what(987,719)}!#don't();<how()[from()/-'mul(438,672)}!@who() }?)mul(952,413#>:}-: 'when()select()mul(547,749)$#mul(869,866)@{mul(334,736';'select(330,146)[~ :>mul(511,40)(mul(11,3 mul(547,132)[!>select();who()mul(424,102)*!~mul(725,298)~:{^?%*mul(514,355%'],,: -)mul(116,719)select()?/@;when()<who();!mul(352,211)+#$;{$>]mul(820,414)&when(),!?[:?don't()when()?>}+#how()mul(159$$},:]why()-mul(689,30)@^mul(310,593)where(800,717)^(/*/! from()<mul(7,727)select()&mul(259,310)where()^select()#@how(49,595)what(){>]mul(429,841)(-+#[mul(579,668)>what()&+,mul(850,283)don't()#?mul(758,673)^;)select(856,890)%:how(550,676)<,)mul(667,314)>:[;+mul(760,374)select();}*select()#how()$*mul(347,822)who()how(){mul(497,700):where(){what()mul(851,789)^:}when()why()where()(:mul(991,536)-mul(711,63)',( who()]mul(798,573)>mul(190,153)$]from()!mul(592,256)-$-]mul(734?mul(482,742)#;mul(939,69)how()([how()<what()$$who()why()mul(149,831))/'when()mul(152,123)+* ','$where()mul(774,252) ;@?,;don't()how()>(mul(933,652)}mul(882,656),?how()#%}do()!select()>}>mul(981,750)mul(927,646)!what()$mul(380why()$]/[*?+)mul(67,435)>select()@-mul(819,795)?/? how())mul(215,234){,#/>how(513,708)'~>do()#}^^mul#how()how()how()+when():mul(992,63)mul(526,962)where()}who()who()+&'<,mul(730,728)}/,select()what()*who())[mul(687,974)-<:mul(259,420)
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from()[^!mul(447,170)],/why()from()#mul(390,953)when()who()<>)%'@mul(830,176)what()!+:@mul))#>mul(350,913):,)*+mul(341,997)#+ mul(49,490):where()})select()when()mul(434,911)do() from()&[,who()how()&mul(277,83)@select()^{!,what()>:mul(896,117)why()-/mul(22,967)$^!)~)mul(540,843)^>}@^*/~[select()mul(305,728)mul(234,965)where()&;>;<)mul(536,159):#when(907,337)~/[^ where()mul(255,249)mul(47,296)*'select())+don't()+how()why()^ *@select();mul(985,160)}-<why()mul(283,5)how()why()^from()mul(930,617)>{what()),<^-?$mul(506,985)select()'>do(){how() from()why()mul(329,225)$mul<don't()*{(who()*+mul(603,836)@mul(947,431)who(638,671)!don't():,what() {%*when()~(mul(179,618)*why()&;>;*+%when()mul~]who()$~from()when()?)mul(833,539)/%;!%^~#mul(37,690)@<':*>#~(mul(527,38)}who()~how()mul(812,603)$^who()why()&+]*mul(743,253)<mul(164,237)from()!&+$ ~}#^mul(250,473):who()(how(),,?+^mul(91,450)&select()from()'#where()from()-{$mul(245,112);&why()why()where()'/mul(332,324)%,$:where()~who()when(896,261)when()mul(551,82)!]mul(316,126),$from();mul(164,359)?[/from() $$mul(384,892)[where()$how()mul(721,238)-&don't())when(177,679)why()from()^from()+when()mul(404,530):do()?from()#&(({;^%mul(378,543)-mul(126,360)mul(699,438)mul(336,574)why()where()>}*,+'-from(486,483)mul(811,380)when()how()from()from()what()how()!mul(7,69);~!]^){why()mul(478,680):!/mul(227,472)why()from()]&mul(376,566):)! what()mul(241,708)select()]mul(410,202)what()where())do(){^mul(560,185);!<@mul(711,222,:@$*~*mul(103,347)@from())from()mul(657,475)/!;don't()!]who():$why()-}}:mul(451,895)^mul(981,444)-&-why()!#mul(100,601)where(){,how()<mul(213,723)mul(685,739[(mul(182,236),why(166,364)<@+*}&,mul'<mul(807,707)@)),(^do():;&mul(387,217)mul(878,247)mul(245,166) ?why()():/-+,do()! when()[~why(703,68)from()mul(694,278),: how()$*:[?mul(475,535-<<when(277,526),{/;what()?mul(798,822)^)^mul(138,477)how()]mul(663,377)why(568,281)how()[what()*<what()-@from()mul(655,71)<&/mul(35,807)select()]!,$&?,where()mul,/!}])/'mul(548,258)*)(;/why()don't(){>:[,*<[ ;mul(246,732) <?mul(236,319){what() when()^'?who()mul$^mul(931,998)mul(251,79)mul(809,168)>[who()[)mul(734,171)#mul(879,259)select()*@when()mul(254,156)+mul(141,798)don't()mul(202,831)>>]/select()#!how()mul(601,846)^*,select(){from()mul(458,799)how(){why()'from()<mul(329,548)+ *^^mul(960,300)mul(615,752) &>who()?#how()~}<mul(916,199);mul(589,487)(/^)who()<@&what()mul(915,165$~?$select();~mul(83,883),select();;(where()]mul(839,114)[&how()-/-who() where()mul(594,959$+::$-what()select()mul(929,442)?why(){@mul(459,224)}}mul(699,260)!'+mul(911,579)^%(;<:&mul(644,689)how()where()how()mul(807,693)mul(400,649)select()^@what()mul(178,58)>where()[{who()select()do()from()why()from()mul(578,283)/*why(495,577)%select())'mul(475,993)@mul(673,70)mul(329,734@-how()when()*@where();&-[mul(703,672):+){who()<)&~)mul(770,646:)why())@~ @why()mul(867,88)mul(996,854)~what(804,700)where()mul(57,884);[how(),mul(593,934)what(324,653)when()}<!what(){/mul(824,86)^where(556,386)from()+mul(373,832)*'mul(729,891)!when()from()($#from()from()how()<mul(446,196)}%{?why()how()<mul(738,551)*what()'+mul(793,105){~^when()where()mul(325,94)@/>%mulselect()how()#/?*mul(588,116)*how()[don't()]@^:}how()??mul(881,189);+>@&<,why()#mul(168,770}mul(220,688)do()why()how();{- +(how()-mul(698,77)
}where(174,722)({(/ *mul(582,635){what()~/:mul(470,940)where()'&mul(222,145)mul(880,163)$%*#>@how()how()%mul(25,277)(how(),-why(138,788)mul(41,986)]%when()from();<mul(362,999)select(),<^select()where()mul(768,107)select(){^}}(select()-mul(168,428)when()where()when()mul(179,874)when()-mul(835,227)]*%;how()'(mul(566,914) <do()@{ mul(438,926)[])!#;+mul(105,95)%[%~&?what(){mul(823,678)-what()mul(109,261)]{}mul(641,489)]~} +when()mul(921,460)who()(where():/ '+]mul(837,808)///?)$what()}mul(725,517])how()&[~[mul(837,920)how()~$&;</*mul(211,958))mul;(,where()mul(902,856)}!how()select()$:+mul(483,84)where()@>who(869,346)how()*why()([#mul(52,895)>don't()>+}!how()when()when()%#when()mul(765,168)from()mul(710,790)^#&~+select()mul(868,851)<where()mul(517,296)}how() +{]mul(401,32)mul(822,869)-when(940,602)who()~!where()mul(862,748)when()[:when()%why()mul(608,342)mul(357,681)%]$#!~)mul(303,13),how()what()mul(323,541)!()where()>from()how()->don't()^what()#>who()<;mul(722,400)~mul(217,112)from(90,168)!]when()$mul(806,665)%}>who()%-~mul(94,953)[-/*mul(322,64)when()mul(214,392)how()-{$:}don't() why(){,-who(703,968)!-mul(251,12)how()who()?from(538,173)&%@mul(318,562)how(),select()&,how()where()mul(239,777);~-mul(354,576)/~@$!^[when()mul(274,212)why()*mul(184,508)who()<@#do()]+where()mul(328,716)select();%mul(459,510)^'*when(632,422)+#where()how()select(260,585)^don't()^from()]$select()(who()how():%mul(35,792)mul(884,132)#mul(634,560),who()who();mul(759,868)/mul(688,411)why()mul(850,281)?--(>]mul(348,71)mul(725,441)who() select()*mul(373,244):why()who()<mul(554,7)from()^@&where()@^mul(561,205),why()}mul,>!,%&/select()mul(266,281):-what()',%select(769,776)[when()mul(478,447)when()^select()%mul(834,170)mul(867,978)}^-!how()how()@mul(884,586);!-}mul(681,431)who()[select(),}from()>@,)mul(358,409)+*/{when()@mul(798,937)^@mul(811,516)mul(683,569)when(222,647)what(240,706)why()mul(271,504),what()[)#mul(194,749)why())select()mul(452,63)[how()mul(675,660)<}*!-]~!'>mul(604,21)<where()mul(393,791)%who()/what()/~#mul(947,930)'-mul(361,577)>:who()?(>[mul(650,115)})]<;%mul(384,732)*mul(749,686)where()mul(524,177)^'+! >mul(698,944)*where()!^@]how()don't()-mul(573,409)$><&'*mul(985,814):from()mul(531,513)%]when() [!how()[]mul(322,404){;do()-mul(760,394)]mul(845,760)mul(691,945)why()}$/,mul(589,837)'$[[+&>mul(864,413)%~when()@'mul(650,851)$why()!where()!from()mul(437,509)why()mul(671,154)'+^#]how(),how()mul(248,241)mul(36,707):/~$%~>mul(415,475)select())(~(where())}mul(956,228)mul(310,43)how()$how()[how()~from()mul(230,10)what()'when()what()~why();:how()mul(219,566)how()*$#,>don't()[how()[,:]}%@%mul(907,64)@&why():]$)!mul(469,550))<]mul(328,818),from()why()]do()^'mul(525,979)how()<;]$+mul(451,350)~who()/'*<mul(824,446)^where()how()mul(212,756)</^mul(59,557)+mul(810,500)@/ -?:~+mul(957,32)how()}>what()]!$mul(322,822)mul(837,964),mul(997,114)??]how()mul(326,455)
+!!who(111,197)<#mul(927,707)~@-()'mul(310,954)select()~;>%'don't()/mul(111,300)select()^#<,+-*when()where()mul(853,48)},where()<} do()>why()[* :mul(329,340)mul(775,432),what()]#select():mul[how()mul(975,305)don't() mul(380,23)<mul(610,328)$mul(547,22)how()where()select()'-when()select()how()*do()when()*&{@mul(509,794)'/^who(){what(){who()what()why(559,447)mul(527,574){*mul(640,883)~[, >^-^*mul(92,490)<?:#!);'mul(830,759)^-*~:?when()mul(658,459)who()do()%; %mul(901,84)@ {);mul(176,691)select()&]&[:[when()(who()mul(787,832)(({>!who()from()}@mul(482,720)/+mul(341,296)/%)%}$mul(199,41)?;select()mul(952,575)+%!;from()mul(629,288)from()mul(261,169) $when()mul(137,539)mul'who())who()# :,#!how()mul(712,429)^how()who()?;mul(572,59)>{ @mul(471,598)(>}select()*+mul(482,644)select()^why()select()+~!where(),mul(5,217)^>mul(927,157)mul(192,700)mul(598where()(}who()mul(914,246)mul(146,709),mul(545,12)mul(531,165)>#-&!*}mul(861,209)}{how()??(mul(469,555)/<:]}+%select()?mul(544,310){select()mul(549,681)+@^$ {?)%mul(625,262)%mul(658,715)-where()?/]who()* $&don't()what(366,880))mul(339,633)mul(282,510)-?'mul(538,886)mul(431,412)select()?# ]]mul(16,157)}}(!select()/mul(925,798);what(934,305)*[+-$why()what()mul(882,680)-/mul(554,323)/)where()when(),mul(384,806)~where()select()why()}what()[mul(291,811)&!how()&)where()@mul(675,825)when()mul(703,914)%-% ?@mul(733,721)/'*<mul(404,764)?!&mul(302,783)%/where();-,why()*mul(106,771)mul(422,483)!/?!from(746,984)don't()from(818,501)when()$;,'#>what()mul(452,139);>!how()(~how(681,256)&who(740,533)don't()#%why()+where()~mul(52,930):+ /do()&&:how()why()'mul(673,741)}where()don't()(who()mul(496,885)/mul(126,603)what()select()who(301,758)when()from()-mul(890,826)>]when()^>mul(231,474)!when(456,931)!where()[ how()+!-don't()mul(168,864)?mul(711,701) +^:: mul(243,505)!from()-+'?<select()mul(893,538)&-:mul(871,651)[from())(don't()({'@;&#mul(406,612)mul(52,182)[mul(785,121) mul(497,363)(who()(),mul(799,612))from()mul(518,886);&&%}who()^!mul(706,840)/mul(846,51)#>~;when()how():who()mul(482,341)<>!'where()why()}+mul(690,370)&#who()mul(682,266):@,+]^@-$mul(228,532)+#+where()from())'mul(547,133)@*mul(764,842)mul(181,500)*%!'/]mul(366,266)>](?>*<:why())mul(786,240)/ mul(980,844):@;![mul(932,294)[mul(582,252),when()?why(),~how()mul(619,83)why()??(^select()!mul(915,820)from()[+^don't();:# ]mul(421,350)'}how()mul(429,848)~$!select() ?/+/)mul(393,36)what(),%<-;+~mul(333,687)$(select(){{<select()what()mul(156,751) >-what(),mul(364,843))how()mul(148,833)how()'from()from():[}$mul(134,950)from()what() (what()mul(512,454)how(),mul(775,814):select(820,315),from()>who()how():**mul(329,285)where()?don't()!/->~/' mul(873,470)+-[(select()from()select()/why()?mul(911,768)what(805,778)mul(690,737)from()who())select()<~mul(248,530)mul(638,821)mul(218,217)(^why();&mul(684,550)

2
src/day03/src/lib.rs Normal file
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@@ -0,0 +1,2 @@
pub mod part03a;
pub mod part03b;

65
src/day03/src/part03a.rs Normal file
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@@ -0,0 +1,65 @@
use std::fs::File;
use std::io::Read;
pub fn day03a() -> u64 {
// read file (that for sure exists) into two lists
let mut file: File = File::open("src/day03/input03.txt").unwrap();
let mut file_content: String = String::new();
file.read_to_string(&mut file_content).expect("Can't read file");
let file_chars: Vec<char> = file_content.chars().collect();
// we know the mul(XXX,YYY) format
// try to parse for it
let mut cursor: usize = 0;
let mut sum: u64 = 0;
loop {
// minimal length of valid instruction is 8 ('mul(X,Y)')
if file_chars.len() < cursor + 8 {
return sum
}
// find occurrence of 'mul(
let mut is_mul: bool = true;
for ch in "mul(".chars() {
if !file_chars[cursor].eq(&ch) {
is_mul = false;
cursor += 1;
break;
}
cursor += 1;
}
if !is_mul {continue}
// read in first nr
let mut number_a: u64 = 0;
for _ in 0..3 {
match file_chars[cursor].to_digit(10) {
Some(number) => {number_a = number_a * 10 + number as u64}
None => break
}
cursor += 1;
}
// expect number_a is not 0 and the char is a ','
if number_a == 0 || !file_chars[cursor].eq(&',') {continue}
cursor += 1;
// read in second number
let mut number_b: u64 = 0;
for _ in 0..3 {
match file_chars[cursor].to_digit(10) {
Some(number) => {number_b = number_b * 10 + number as u64}
None => break
}
cursor += 1;
}
// expect number_b is not 0 and the char is a ')'
if number_b == 0 || !file_chars[cursor].eq(&')') {continue}
cursor += 1;
sum += number_a * number_b
}
}

95
src/day03/src/part03b.rs Normal file
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@@ -0,0 +1,95 @@
use std::fs::File;
use std::io::Read;
pub fn day03b() -> u64 {
// read file (that for sure exists) into two lists
let mut file: File = File::open("src/day03/input03.txt").unwrap();
let mut file_content: String = String::new();
file.read_to_string(&mut file_content).expect("Can't read file");
let file_chars: Vec<char> = file_content.chars().collect();
// we know the mul(XXX,YYY) format
// try to parse for it
let mut cursor: usize = 0;
let mut sum: u64 = 0;
let mut mul_enabled: bool = true;
loop {
// minimal length of valid instruction is 8 ('mul(X,Y)')
if file_chars.len() < cursor + 8 {
return sum
}
// is it 'do' -> do | don't or '...' -> mul
if file_chars[cursor].eq(&'d') {
cursor += 1;
if !file_chars[cursor].eq(&'o') {continue}
cursor += 1;
// we got a 'do' now
let mut is_dont: bool = true;
for (i, ch) in "n\'t".chars().enumerate() {
if !file_chars[cursor+i].eq(&ch) {
is_dont = false;
break;
}
}
if is_dont {cursor += 3}
// check for braces
if file_chars[cursor].eq(&'(') {
cursor += 1;
if file_chars[cursor].eq(&')') {
cursor += 1;
mul_enabled = !is_dont;
}
}
continue
}
// find occurrence of 'mul(
let mut is_mul: bool = true;
for ch in "mul(".chars() {
if !file_chars[cursor].eq(&ch) {
is_mul = false;
cursor += 1;
break;
}
cursor += 1;
}
if !is_mul {continue}
// read in first nr
let mut number_a: u64 = 0;
for _ in 0..3 {
match file_chars[cursor].to_digit(10) {
Some(number) => {number_a = number_a * 10 + number as u64}
None => break
}
cursor += 1;
}
// expect number_a is not 0 and the char is a ','
if number_a == 0 || !file_chars[cursor].eq(&',') {continue}
cursor += 1;
// read in second number
let mut number_b: u64 = 0;
for _ in 0..3 {
match file_chars[cursor].to_digit(10) {
Some(number) => {number_b = number_b * 10 + number as u64}
None => break
}
cursor += 1;
}
// expect number_b is not 0 and the char is a ')'
if number_b == 0 || !file_chars[cursor].eq(&')') {continue}
cursor += 1;
if mul_enabled {
sum += number_a * number_b
}
}
}

17
src/day03/story03a.txt Normal file
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@@ -0,0 +1,17 @@
"Our computers are having issues, so I have no idea if we have any Chief Historians in stock! You're welcome to check the warehouse, though," says the mildly flustered shopkeeper at the North Pole Toboggan Rental Shop. The Historians head out to take a look.
The shopkeeper turns to you. "Any chance you can see why our computers are having issues again?"
The computer appears to be trying to run a program, but its memory (your puzzle input) is corrupted. All of the instructions have been jumbled up!
It seems like the goal of the program is just to multiply some numbers. It does that with instructions like mul(X,Y), where X and Y are each 1-3 digit numbers. For instance, mul(44,46) multiplies 44 by 46 to get a result of 2024. Similarly, mul(123,4) would multiply 123 by 4.
However, because the program's memory has been corrupted, there are also many invalid characters that should be ignored, even if they look like part of a mul instruction. Sequences like mul(4*, mul(6,9!, ?(12,34), or mul ( 2 , 4 ) do nothing.
For example, consider the following section of corrupted memory:
xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))
Only the four highlighted sections are real mul instructions. Adding up the result of each instruction produces 161 (2*4 + 5*5 + 11*8 + 8*5).
Scan the corrupted memory for uncorrupted mul instructions. What do you get if you add up all of the results of the multiplications?

18
src/day03/story03b.txt Normal file
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@@ -0,0 +1,18 @@
As you scan through the corrupted memory, you notice that some of the conditional statements are also still intact. If you handle some of the uncorrupted conditional statements in the program, you might be able to get an even more accurate result.
There are two new instructions you'll need to handle:
The do() instruction enables future mul instructions.
The don't() instruction disables future mul instructions.
Only the most recent do() or don't() instruction applies. At the beginning of the program, mul instructions are enabled.
For example:
xmul(2,4)&mul[3,7]!^don't()_mul(5,5)+mul(32,64](mul(11,8)undo()?mul(8,5))
This corrupted memory is similar to the example from before, but this time the mul(5,5) and mul(11,8) instructions are disabled because there is a don't() instruction before them. The other mul instructions function normally, including the one at the end that gets re-enabled by a do() instruction.
This time, the sum of the results is 48 (2*4 + 8*5).
Handle the new instructions; what do you get if you add up all of the results of just the enabled multiplications?

5
src/main.rs
View File

@@ -1,9 +1,10 @@
use std::iter::zip;
use std::time::Instant;
use day01::part01a::day01a;
use day01::part01b::day01b;
use day02::part02a::day02a;
use day02::part02b::day02b;
use day03::part03a::day03a;
use day03::part03b::day03b;
fn main() {
let exercises: Vec<(&str, fn () -> u64)> = vec![
@@ -11,6 +12,8 @@ fn main() {
("day01:B", day01b),
("day02:A", day02a),
("day02:B", day02b),
("day03:A", day03a),
("day03:B", day03b),
];
let start: Instant = Instant::now();