aoc2024

advent of code 2024 version unix - retour accueil

git clone git://bebou.netlib.re/aoc2024
Log | Files | Refs | 

commit 6bc4b7d107811cd68038c2f7fa5e00c6d48221ea
parent 243bea757a29f5a8eba7a659cf7ecfa3ec7c36af
Auteurice: Arthur Pons <arthur.pons@unistra.fr>
Date:   Fri,  6 Dec 2024 21:00:10 +0100

Ajout jour 5 et 6

C'est n'importe quoi

Diffstat:

A5.input | 1373+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


A5.solve | 25+++++++++++++++++++++++++


A6.input | 130+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


A6.solve | 137+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


4 files changed, 1665 insertions(+), 0 deletions(-)

diff --git a/5.input b/5.input
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diff --git a/5.solve b/5.solve
@@ -0,0 +1,25 @@
+#! /bin/sh
+
+echo "part 1"
+
+csplit 5.input /^$/ > /dev/null
+orderfiles=xx00
+manualpages=xx01
+< $orderfiles sed -E 's/\|/.*/g' > rules
+cat $manualpages | grep -v ^$ |
+while read update;do
+	relevantrulesreg=$(echo "$update" |
+					grep -v ^$ |
+					sed 's/^/(/;s/$/)/p' |
+					tr ',' '|' |
+					paste -s -d '.' | sed 's/\./\\.\\*/' )
+	relevantrules=$(< rules grep -E "$relevantrulesreg")
+	greps=$(echo "$relevantrules" | sed -E 's/^/grep "/;s/$/"/' |
+		paste -s -d'|')
+	echo "$update" | eval $greps
+done | awk -F',' '{mid=(NF+1)/2;print $mid}' | paste -s -d+ | bc
+
+echo "part 2"
+
+rm xx00 xx01
+
diff --git a/6.input b/6.input
@@ -0,0 +1,130 @@
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+.#........#...............#..##......#..............................#...........#..#.........#...........................#........
+...................#................................................................................#...............#.............
+..............................................................................#........................#................#.........
+...........#.....#..#.#....................................................#......#......#..#................##...................
+....#......#...................................................................#..............#.....#.........#..................#
+..#...........#...#...........#.......##..........##......................#......................................................#
+..................#................................................#.#............................................................
+#................................................................#............#...##..........................................#...
+......#............................................#.......#.#.................................................#..................
+..............................#..............#.#....#............#..........................#.....................................
+............................#..................................#.................#..#...........................................#.
+.........................................#................#..................#...#............................#..#......#........#
+....................#..............................................................#..............................#..........##...
+...#......................................#...........#..#............................................#.....#....#................
+................#..#....#.........................................................................................................
+...................................#...................#...............................#................................#.......#.
+..........#.................#.............#..................#...............................................................#....
+.....#...........#........#................#.........................................#..........................#......##.........
+..........................#................#..............................................................#.......................
+........#.................................................................#......................#.#..........................#...
diff --git a/6.solve b/6.solve
@@ -0,0 +1,137 @@
+#! /bin/sh
+
+< 6.input awk '
+function printboard() {
+	for(i=0;i<size;i++) {
+		for(j=0;j<size;j++) printf f[i,j]
+		printf "\n"
+	}
+	printf "\n"
+}
+{
+	split($0,a,"")
+	size=length(a)
+	for(i=0;i<size;i++){
+		if(a[i+1]~ /[><^v]/ ) { startr=NR-1;startc=i }
+		f[NR-1,i]=a[i+1]
+	}
+}
+END {
+	curr=startr;curc=startc;
+	#print f[curr,curc]
+	#print size
+	#f[15,62]="#"
+	do {
+		#printboard()
+		if (f[curr,curc]=="^") {
+			if (f[curr-1,curc]=="#") {
+				f[curr,curc]=">"
+			} else {
+				f[curr,curc]="X"
+				curr=curr-1
+				f[curr,curc]="^"
+			}
+		} else if (f[curr,curc]==">") {
+			if (f[curr,curc+1]=="#") {
+				f[curr,curc]="v"
+			} else {
+				f[curr,curc]="X"
+				curc=curc+1
+				f[curr,curc]=">"
+			}
+		} else if (f[curr,curc]=="v") {
+			if (f[curr+1,curc]=="#") {
+				f[curr,curc]="<"
+			} else {
+				f[curr,curc]="X"
+				curr=curr+1
+				f[curr,curc]="v"
+			}
+		} else {
+			if (f[curr,curc-1]=="#") {
+				f[curr,curc]="^"
+			} else {
+				f[curr,curc]="X"
+				curc=curc-1
+				f[curr,curc]="<"
+			}
+		}
+	} while ( 0<curr && 0<curc && curr<size && curc<size )
+	f[curr,curc]="X"
+	f[startr,startc]="^"
+	printboard()
+}
+' | sed '$d' > res
+grep -o "[X^]" res | wc -l
+
+< res awk '
+function printboard() {
+	for(i=0;i<size;i++) {
+		for(j=0;j<size;j++) printf fcopy[i,j]
+		printf "\n"
+	}
+	printf "\n"
+}
+{
+	split($0,a,"")
+	size=length(a)
+	for(i=0;i<size;i++){
+		if(a[i+1] ~ /[><^v]/ ) { startr=NR-1;startc=i }
+		f[NR-1,i]=a[i+1]
+	}
+}
+END {
+	#print f[curr,curc]
+	#print size
+	for(p=0;p<size;p++) {
+		for(l=0;l<size;l++) {
+			if (f[p,l] !~ /X/) continue
+			curr=startr;curc=startc;
+			delete fcopy
+			for(w=0;w<size;w++) {
+				for(x=0;x<size;x++) fcopy[w,x]=f[w,x]
+			}
+			block=p","l
+			print "putting block in"p","l
+			fcopy[p,l]="#"
+			count=0
+			do {
+				if (count++>500000) { print "block at "p","l;break;}
+				if (fcopy[curr,curc]=="^") {
+					if (fcopy[curr-1,curc]=="^") { print "block at "p","l ; break; }
+					if (fcopy[curr-1,curc]=="#") fcopy[curr,curc]=">"
+					else {
+						fcopy[curr,curc]="^"
+						curr=curr-1
+						fcopy[curr,curc]="^"
+					}
+				} else if (fcopy[curr,curc]==">") {
+					if (fcopy[curr,curc+1]==">") { print "block at "p","l ; break; }
+					if (fcopy[curr,curc+1]=="#") fcopy[curr,curc]="v"
+					else {
+						fcopy[curr,curc]=">"
+						curc=curc+1
+						fcopy[curr,curc]=">"
+					}
+				} else if (fcopy[curr,curc]=="v") {
+					if (fcopy[curr+1,curc]=="v") { print "block at "p","l ; break; }
+					if (fcopy[curr+1,curc]=="#") fcopy[curr,curc]="<"
+					else {
+						fcopy[curr,curc]="v"
+						curr=curr+1
+						fcopy[curr,curc]="v"
+					}
+				} else {
+					if (fcopy[curr,curc-1]=="<") { print "block at "p","l ; break; }
+					if (fcopy[curr,curc-1]=="#") fcopy[curr,curc]="^"
+					else {
+						fcopy[curr,curc]="<"
+						curc=curc-1
+						fcopy[curr,curc]="<"
+					}
+				}
+			 }while ( 0<curr && 0<curc && curr<size && curc<size )
+		}
+	}
+}
+' | grep "block at" | wc -l