commit 41c5829f4861951e0a948dd208a4e211201af0db
parent 6fad1ecdde0cd28dcf7c98994b4dbd1709727a55
Author: Jake Bauer <jbauer@paritybit.ca>
Date: Mon, 5 Dec 2022 17:58:43 -0500
Day 5 challenge complete
Diffstat:
| A | day5/input.txt | | | 503 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | day5/part1.c | | | 113 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | day5/part2.c | | | 116 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
3 files changed, 732 insertions(+), 0 deletions(-)
diff --git a/day5/input.txt b/day5/input.txt
@@ -0,0 +1,503 @@
+move 1 from 3 to 5
+move 5 from 5 to 4
+move 6 from 7 to 3
+move 6 from 1 to 3
+move 1 from 1 to 9
+move 1 from 1 to 4
+move 3 from 6 to 9
+move 2 from 7 to 5
+move 1 from 5 to 7
+move 1 from 7 to 2
+move 2 from 2 to 5
+move 2 from 6 to 3
+move 6 from 8 to 9
+move 7 from 3 to 9
+move 1 from 8 to 7
+move 8 from 9 to 7
+move 5 from 4 to 8
+move 1 from 6 to 2
+move 2 from 8 to 4
+move 9 from 9 to 1
+move 2 from 8 to 5
+move 1 from 8 to 5
+move 5 from 9 to 2
+move 1 from 6 to 8
+move 5 from 1 to 7
+move 1 from 8 to 2
+move 2 from 1 to 7
+move 1 from 2 to 6
+move 4 from 5 to 4
+move 2 from 1 to 4
+move 13 from 7 to 8
+move 3 from 8 to 6
+move 2 from 6 to 8
+move 10 from 3 to 5
+move 2 from 7 to 6
+move 3 from 5 to 6
+move 10 from 8 to 1
+move 1 from 8 to 6
+move 6 from 2 to 4
+move 1 from 5 to 8
+move 5 from 6 to 3
+move 2 from 8 to 6
+move 1 from 7 to 9
+move 2 from 2 to 7
+move 3 from 5 to 1
+move 2 from 7 to 2
+move 6 from 6 to 3
+move 7 from 5 to 6
+move 5 from 3 to 2
+move 10 from 1 to 8
+move 2 from 1 to 3
+move 8 from 3 to 7
+move 9 from 4 to 8
+move 1 from 9 to 2
+move 2 from 7 to 8
+move 4 from 6 to 9
+move 1 from 4 to 9
+move 5 from 7 to 4
+move 3 from 6 to 5
+move 1 from 1 to 5
+move 14 from 4 to 8
+move 3 from 9 to 7
+move 4 from 5 to 9
+move 2 from 4 to 1
+move 27 from 8 to 6
+move 2 from 7 to 2
+move 2 from 7 to 4
+move 4 from 2 to 9
+move 7 from 8 to 4
+move 10 from 4 to 1
+move 18 from 6 to 5
+move 6 from 9 to 2
+move 1 from 9 to 5
+move 11 from 2 to 6
+move 2 from 5 to 4
+move 1 from 2 to 8
+move 2 from 4 to 9
+move 2 from 8 to 3
+move 1 from 6 to 8
+move 4 from 9 to 7
+move 4 from 7 to 8
+move 7 from 5 to 1
+move 4 from 6 to 3
+move 2 from 3 to 7
+move 6 from 5 to 3
+move 2 from 8 to 2
+move 14 from 6 to 2
+move 3 from 8 to 1
+move 15 from 2 to 3
+move 1 from 6 to 1
+move 14 from 3 to 2
+move 2 from 2 to 5
+move 1 from 9 to 3
+move 13 from 1 to 3
+move 4 from 2 to 6
+move 10 from 1 to 3
+move 2 from 6 to 9
+move 6 from 2 to 9
+move 6 from 5 to 2
+move 2 from 6 to 8
+move 7 from 9 to 5
+move 1 from 5 to 8
+move 2 from 7 to 6
+move 34 from 3 to 6
+move 19 from 6 to 2
+move 12 from 6 to 9
+move 3 from 6 to 3
+move 2 from 3 to 2
+move 1 from 6 to 5
+move 17 from 2 to 8
+move 2 from 3 to 2
+move 8 from 9 to 4
+move 7 from 5 to 2
+move 5 from 4 to 1
+move 4 from 1 to 6
+move 1 from 1 to 6
+move 6 from 6 to 8
+move 2 from 8 to 4
+move 17 from 8 to 6
+move 2 from 4 to 5
+move 17 from 6 to 9
+move 22 from 9 to 7
+move 1 from 5 to 2
+move 20 from 2 to 7
+move 29 from 7 to 9
+move 1 from 4 to 7
+move 3 from 8 to 3
+move 1 from 8 to 5
+move 3 from 8 to 2
+move 2 from 2 to 4
+move 27 from 9 to 7
+move 2 from 3 to 2
+move 1 from 5 to 2
+move 18 from 7 to 5
+move 1 from 3 to 2
+move 1 from 5 to 6
+move 18 from 5 to 3
+move 1 from 6 to 3
+move 2 from 9 to 5
+move 10 from 3 to 5
+move 4 from 3 to 6
+move 1 from 7 to 1
+move 1 from 5 to 1
+move 6 from 7 to 6
+move 1 from 6 to 2
+move 4 from 4 to 8
+move 5 from 5 to 4
+move 1 from 3 to 8
+move 2 from 1 to 8
+move 2 from 2 to 5
+move 3 from 3 to 8
+move 6 from 8 to 2
+move 1 from 3 to 9
+move 1 from 6 to 3
+move 6 from 2 to 8
+move 7 from 8 to 4
+move 8 from 5 to 2
+move 5 from 4 to 6
+move 2 from 8 to 3
+move 2 from 3 to 9
+move 1 from 3 to 9
+move 2 from 7 to 1
+move 2 from 1 to 2
+move 12 from 2 to 4
+move 1 from 9 to 7
+move 1 from 6 to 2
+move 9 from 7 to 9
+move 1 from 8 to 2
+move 9 from 9 to 8
+move 6 from 7 to 8
+move 4 from 4 to 1
+move 6 from 2 to 5
+move 1 from 4 to 9
+move 3 from 1 to 9
+move 6 from 4 to 5
+move 5 from 8 to 9
+move 8 from 4 to 6
+move 3 from 9 to 8
+move 1 from 9 to 3
+move 3 from 8 to 3
+move 5 from 9 to 2
+move 3 from 2 to 6
+move 3 from 6 to 9
+move 3 from 6 to 2
+move 4 from 2 to 6
+move 6 from 9 to 7
+move 1 from 1 to 8
+move 8 from 8 to 5
+move 20 from 5 to 3
+move 2 from 2 to 8
+move 6 from 7 to 1
+move 10 from 6 to 3
+move 4 from 6 to 7
+move 4 from 1 to 9
+move 2 from 1 to 2
+move 3 from 6 to 9
+move 5 from 8 to 3
+move 3 from 7 to 9
+move 17 from 3 to 2
+move 1 from 6 to 2
+move 2 from 6 to 9
+move 1 from 6 to 4
+move 12 from 9 to 2
+move 1 from 4 to 7
+move 8 from 3 to 8
+move 8 from 8 to 9
+move 7 from 9 to 2
+move 1 from 9 to 7
+move 18 from 2 to 9
+move 1 from 7 to 2
+move 2 from 7 to 1
+move 1 from 1 to 2
+move 4 from 2 to 7
+move 15 from 9 to 3
+move 1 from 9 to 1
+move 2 from 1 to 8
+move 6 from 2 to 4
+move 8 from 2 to 1
+move 2 from 8 to 5
+move 2 from 9 to 3
+move 4 from 4 to 1
+move 2 from 5 to 8
+move 2 from 8 to 9
+move 14 from 3 to 1
+move 2 from 9 to 7
+move 2 from 4 to 3
+move 1 from 2 to 9
+move 5 from 7 to 9
+move 21 from 1 to 9
+move 2 from 1 to 6
+move 3 from 2 to 4
+move 1 from 7 to 3
+move 19 from 9 to 5
+move 1 from 2 to 7
+move 1 from 7 to 2
+move 3 from 4 to 2
+move 19 from 5 to 7
+move 2 from 2 to 5
+move 1 from 5 to 3
+move 1 from 3 to 4
+move 8 from 9 to 4
+move 1 from 6 to 3
+move 1 from 2 to 6
+move 1 from 2 to 1
+move 8 from 7 to 3
+move 5 from 4 to 7
+move 2 from 6 to 4
+move 1 from 5 to 9
+move 1 from 1 to 6
+move 1 from 1 to 2
+move 2 from 4 to 7
+move 1 from 4 to 2
+move 2 from 4 to 9
+move 1 from 6 to 8
+move 1 from 1 to 5
+move 1 from 8 to 6
+move 1 from 1 to 4
+move 25 from 3 to 1
+move 1 from 4 to 2
+move 2 from 3 to 6
+move 3 from 1 to 9
+move 6 from 9 to 8
+move 1 from 6 to 3
+move 1 from 2 to 9
+move 15 from 7 to 6
+move 2 from 2 to 6
+move 1 from 3 to 8
+move 1 from 1 to 4
+move 6 from 8 to 4
+move 1 from 3 to 8
+move 1 from 8 to 5
+move 2 from 5 to 2
+move 8 from 6 to 7
+move 1 from 8 to 7
+move 1 from 9 to 4
+move 9 from 4 to 5
+move 19 from 1 to 3
+move 9 from 3 to 5
+move 6 from 7 to 2
+move 2 from 1 to 7
+move 7 from 2 to 4
+move 7 from 5 to 6
+move 5 from 4 to 3
+move 3 from 5 to 8
+move 1 from 2 to 4
+move 2 from 4 to 8
+move 14 from 6 to 1
+move 6 from 5 to 6
+move 1 from 5 to 2
+move 7 from 1 to 6
+move 1 from 2 to 4
+move 4 from 6 to 4
+move 1 from 5 to 4
+move 2 from 1 to 9
+move 2 from 9 to 4
+move 2 from 1 to 8
+move 9 from 3 to 6
+move 3 from 7 to 4
+move 4 from 8 to 6
+move 3 from 7 to 6
+move 1 from 7 to 2
+move 1 from 7 to 5
+move 3 from 8 to 4
+move 26 from 6 to 1
+move 8 from 1 to 2
+move 1 from 6 to 4
+move 5 from 2 to 7
+move 2 from 2 to 4
+move 10 from 4 to 7
+move 1 from 6 to 1
+move 22 from 1 to 2
+move 1 from 6 to 1
+move 6 from 4 to 7
+move 1 from 5 to 1
+move 1 from 1 to 2
+move 21 from 7 to 2
+move 38 from 2 to 3
+move 8 from 2 to 6
+move 2 from 4 to 8
+move 2 from 8 to 2
+move 1 from 1 to 3
+move 1 from 2 to 8
+move 1 from 2 to 5
+move 6 from 6 to 4
+move 2 from 4 to 2
+move 2 from 2 to 6
+move 1 from 8 to 2
+move 28 from 3 to 1
+move 11 from 1 to 2
+move 8 from 1 to 7
+move 4 from 6 to 4
+move 8 from 3 to 1
+move 8 from 2 to 5
+move 6 from 5 to 4
+move 2 from 5 to 4
+move 8 from 3 to 4
+move 22 from 4 to 1
+move 2 from 3 to 5
+move 33 from 1 to 5
+move 26 from 5 to 6
+move 4 from 5 to 7
+move 2 from 2 to 7
+move 2 from 7 to 2
+move 2 from 7 to 8
+move 2 from 8 to 3
+move 6 from 1 to 3
+move 5 from 5 to 1
+move 1 from 5 to 7
+move 7 from 7 to 5
+move 4 from 5 to 6
+move 5 from 1 to 8
+move 4 from 2 to 4
+move 2 from 7 to 4
+move 2 from 7 to 3
+move 5 from 4 to 6
+move 1 from 8 to 2
+move 1 from 2 to 4
+move 10 from 3 to 6
+move 44 from 6 to 9
+move 2 from 5 to 7
+move 1 from 5 to 8
+move 41 from 9 to 1
+move 1 from 6 to 4
+move 2 from 8 to 1
+move 1 from 7 to 3
+move 1 from 3 to 8
+move 2 from 9 to 8
+move 29 from 1 to 9
+move 2 from 1 to 5
+move 2 from 8 to 3
+move 1 from 3 to 5
+move 2 from 5 to 9
+move 1 from 5 to 7
+move 25 from 9 to 2
+move 10 from 2 to 1
+move 1 from 7 to 8
+move 2 from 4 to 1
+move 2 from 8 to 9
+move 1 from 8 to 6
+move 4 from 2 to 4
+move 4 from 2 to 5
+move 1 from 6 to 5
+move 1 from 2 to 7
+move 2 from 4 to 1
+move 18 from 1 to 3
+move 8 from 9 to 4
+move 15 from 3 to 9
+move 3 from 4 to 8
+move 4 from 5 to 8
+move 4 from 2 to 4
+move 10 from 9 to 4
+move 4 from 8 to 5
+move 2 from 7 to 2
+move 11 from 4 to 9
+move 12 from 4 to 9
+move 2 from 5 to 7
+move 4 from 2 to 4
+move 5 from 8 to 1
+move 1 from 5 to 6
+move 1 from 4 to 6
+move 1 from 3 to 9
+move 1 from 5 to 7
+move 4 from 1 to 6
+move 6 from 1 to 5
+move 6 from 5 to 9
+move 3 from 7 to 6
+move 9 from 6 to 5
+move 8 from 5 to 2
+move 7 from 2 to 3
+move 1 from 3 to 1
+move 7 from 3 to 5
+move 2 from 4 to 1
+move 1 from 2 to 6
+move 2 from 1 to 3
+move 8 from 5 to 9
+move 3 from 1 to 3
+move 1 from 6 to 1
+move 2 from 4 to 1
+move 1 from 5 to 2
+move 2 from 1 to 6
+move 2 from 6 to 3
+move 2 from 3 to 2
+move 2 from 2 to 4
+move 1 from 2 to 6
+move 3 from 3 to 9
+move 2 from 4 to 8
+move 3 from 3 to 1
+move 4 from 1 to 7
+move 2 from 8 to 4
+move 7 from 9 to 6
+move 1 from 1 to 4
+move 11 from 9 to 7
+move 3 from 9 to 3
+move 14 from 9 to 5
+move 6 from 6 to 5
+move 4 from 5 to 9
+move 10 from 7 to 6
+move 1 from 3 to 7
+move 2 from 4 to 1
+move 4 from 7 to 9
+move 9 from 6 to 1
+move 3 from 6 to 5
+move 15 from 9 to 1
+move 1 from 4 to 7
+move 4 from 9 to 7
+move 12 from 5 to 1
+move 3 from 7 to 3
+move 4 from 7 to 2
+move 1 from 9 to 3
+move 22 from 1 to 2
+move 21 from 2 to 6
+move 3 from 1 to 9
+move 1 from 3 to 7
+move 1 from 7 to 3
+move 1 from 3 to 2
+move 8 from 1 to 4
+move 1 from 9 to 2
+move 7 from 4 to 8
+move 3 from 3 to 9
+move 3 from 3 to 5
+move 4 from 2 to 3
+move 1 from 1 to 3
+move 4 from 8 to 5
+move 2 from 8 to 3
+move 5 from 3 to 2
+move 6 from 5 to 3
+move 2 from 5 to 8
+move 2 from 1 to 7
+move 2 from 7 to 4
+move 15 from 6 to 9
+move 8 from 3 to 1
+move 3 from 5 to 9
+move 2 from 4 to 9
+move 8 from 1 to 3
+move 8 from 9 to 8
+move 1 from 1 to 4
+move 3 from 5 to 9
+move 4 from 8 to 1
+move 1 from 3 to 9
+move 2 from 4 to 3
+move 2 from 8 to 6
+move 3 from 8 to 7
+move 8 from 2 to 5
+move 3 from 5 to 2
+move 4 from 3 to 4
+move 3 from 6 to 1
+move 2 from 5 to 9
+move 4 from 4 to 1
+move 2 from 5 to 6
+move 1 from 5 to 4
+move 2 from 2 to 1
+move 4 from 3 to 9
+move 1 from 7 to 3
+move 2 from 7 to 4
+move 2 from 4 to 7
+move 1 from 6 to 7
+move 1 from 2 to 8
+move 2 from 3 to 9
+move 14 from 1 to 8
+move 1 from 6 to 2
+move 2 from 7 to 1
+move 3 from 8 to 3
+move 6 from 8 to 5
diff --git a/day5/part1.c b/day5/part1.c
@@ -0,0 +1,113 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <err.h>
+
+struct stack {
+ char contents[64];
+ int size;
+};
+
+char
+pop(struct stack *stack)
+{
+ stack->size--;
+ return stack->contents[stack->size];
+}
+
+void
+push(struct stack *stack, char item)
+{
+ stack->contents[stack->size++] = item;
+}
+
+void
+splitString(char *string, char delim, char **result)
+{
+ int index = 0;
+ for (int i = 0; i < strlen(string); i++)
+ {
+ if (string[i] == delim)
+ index++;
+ else
+ strncat(result[index], &string[i], 1);
+ }
+}
+
+int
+main (void)
+{
+ FILE *fp = fopen("input.txt", "r");
+ if (fp == NULL)
+ {
+ err(1, "Failed to open input.txt");
+ exit(EXIT_FAILURE);
+ }
+
+ struct stack *stacks[9];
+ for (int i = 0; i < 9; i++)
+ {
+ stacks[i] = (struct stack*)malloc(1*sizeof(struct stack));
+ stacks[i]->size = 0;
+ }
+
+ // This is way easier than trying to parse the drawing
+ for (int i = 0; i < strlen("DTRBJLWG"); i++)
+ push(stacks[0], "DTRBJLWG"[i]);
+ for (int i = 0; i < strlen("SWC"); i++)
+ push(stacks[1], "SWC"[i]);
+ for (int i = 0; i < strlen("RZTM"); i++)
+ push(stacks[2], "RZTM"[i]);
+ for (int i = 0; i < strlen("DTCHSPV"); i++)
+ push(stacks[3], "DTCHSPV"[i]);
+ for (int i = 0; i < strlen("GPTLDZ"); i++)
+ push(stacks[4], "GPTLDZ"[i]);
+ for (int i = 0; i < strlen("FBRZJQCD"); i++)
+ push(stacks[5], "FBRZJQCD"[i]);
+ for (int i = 0; i < strlen("SBDJMFTR"); i++)
+ push(stacks[6], "SBDJMFTR"[i]);
+ for (int i = 0; i < strlen("LHRBTVM"); i++)
+ push(stacks[7], "LHRBTVM"[i]);
+ for (int i = 0; i < strlen("QPDSV"); i++)
+ push(stacks[8], "QPDSV"[i]);
+
+ char *command[6];
+ for (int i = 0; i < 6; i++)
+ command[i] = (char *)malloc(8);
+
+ char *line = NULL;
+ size_t linesize = 0;
+ ssize_t linelen = 0;
+ while ((linelen = getline(&line, &linesize, fp)) != -1)
+ {
+ line[linelen-1] = '\0'; // cut off the newline
+
+ for (int i = 0; i < 6; i++)
+ memset(command[i], 0, 8);
+
+ splitString(line, ' ', command);
+
+ int count = atoi(command[1]);
+ int fromStack = atoi(command[3])-1;
+ int toStack = atoi(command[5])-1;
+
+ for (int i = 0; i < count; i++)
+ push(stacks[toStack], pop(stacks[fromStack]));
+ }
+ free(line);
+ if (ferror(fp))
+ err(1, "getline");
+ fclose(fp);
+
+ printf("Crates on top of each stack: ");
+ for (int i = 0; i < 9; i++)
+ printf("%c", pop(stacks[i]));
+ printf("\n");
+
+ for (int i = 0; i < 6; i++)
+ free(command[i]);
+ for (int i = 0; i < 9; i++)
+ free(stacks[i]);
+
+ exit(EXIT_SUCCESS);
+}
diff --git a/day5/part2.c b/day5/part2.c
@@ -0,0 +1,116 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <err.h>
+
+struct stack {
+ char contents[64];
+ int size;
+};
+
+char
+pop(struct stack *stack)
+{
+ stack->size--;
+ return stack->contents[stack->size];
+}
+
+void
+push(struct stack *stack, char item)
+{
+ stack->contents[stack->size++] = item;
+}
+
+void
+splitString(char *string, char delim, char **result)
+{
+ int index = 0;
+ for (int i = 0; i < strlen(string); i++)
+ {
+ if (string[i] == delim)
+ index++;
+ else
+ strncat(result[index], &string[i], 1);
+ }
+}
+
+int
+main (void)
+{
+ FILE *fp = fopen("input.txt", "r");
+ if (fp == NULL)
+ {
+ err(1, "Failed to open input.txt");
+ exit(EXIT_FAILURE);
+ }
+
+ struct stack *stacks[9];
+ for (int i = 0; i < 9; i++)
+ {
+ stacks[i] = (struct stack*)malloc(1*sizeof(struct stack));
+ stacks[i]->size = 0;
+ }
+
+ // This is way easier than trying to parse the drawing
+ for (int i = 0; i < strlen("DTRBJLWG"); i++)
+ push(stacks[0], "DTRBJLWG"[i]);
+ for (int i = 0; i < strlen("SWC"); i++)
+ push(stacks[1], "SWC"[i]);
+ for (int i = 0; i < strlen("RZTM"); i++)
+ push(stacks[2], "RZTM"[i]);
+ for (int i = 0; i < strlen("DTCHSPV"); i++)
+ push(stacks[3], "DTCHSPV"[i]);
+ for (int i = 0; i < strlen("GPTLDZ"); i++)
+ push(stacks[4], "GPTLDZ"[i]);
+ for (int i = 0; i < strlen("FBRZJQCD"); i++)
+ push(stacks[5], "FBRZJQCD"[i]);
+ for (int i = 0; i < strlen("SBDJMFTR"); i++)
+ push(stacks[6], "SBDJMFTR"[i]);
+ for (int i = 0; i < strlen("LHRBTVM"); i++)
+ push(stacks[7], "LHRBTVM"[i]);
+ for (int i = 0; i < strlen("QPDSV"); i++)
+ push(stacks[8], "QPDSV"[i]);
+
+ char *command[6];
+ for (int i = 0; i < 6; i++)
+ command[i] = (char *)malloc(8);
+
+ char *line = NULL;
+ size_t linesize = 0;
+ ssize_t linelen = 0;
+ while ((linelen = getline(&line, &linesize, fp)) != -1)
+ {
+ line[linelen-1] = '\0'; // cut off the newline
+
+ for (int i = 0; i < 6; i++)
+ memset(command[i], 0, 8);
+
+ splitString(line, ' ', command);
+
+ int count = atoi(command[1]);
+ int fromStack = atoi(command[3])-1;
+ int toStack = atoi(command[5])-1;
+
+ for (int i = 0; i < count; i++)
+ push(stacks[toStack], stacks[fromStack]->contents[stacks[fromStack]->size-count+i]);
+
+ for (int i = 0; i < count; i ++)
+ pop(stacks[fromStack]);
+ }
+ free(line);
+ if (ferror(fp))
+ err(1, "getline");
+ fclose(fp);
+
+ printf("Crates on top of each stack: ");
+ for (int i = 0; i < 9; i++)
+ printf("%c", pop(stacks[i]));
+ printf("\n");
+
+ for (int i = 0; i < 6; i++)
+ free(command[i]);
+ for (int i = 0; i < 9; i++)
+ free(stacks[i]);
+
+ exit(EXIT_SUCCESS);
+}
