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Diffstat (limited to 'advent-of-code/2022/05')
-rw-r--r--advent-of-code/2022/05/1.c60
-rw-r--r--advent-of-code/2022/05/2.c64
-rw-r--r--advent-of-code/2022/05/input513
3 files changed, 637 insertions, 0 deletions
diff --git a/advent-of-code/2022/05/1.c b/advent-of-code/2022/05/1.c
new file mode 100644
index 0000000..bef5431
--- /dev/null
+++ b/advent-of-code/2022/05/1.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+struct listnode {
+ struct listnode *next;
+ char val;
+};
+typedef struct {
+ struct listnode *head;
+} Stack;
+
+void stack_push(Stack *s, char val) {
+ struct listnode *n = malloc(sizeof(struct listnode));
+ n->next = s->head;
+ n->val = val;
+ s->head = n;
+}
+
+char* stack_top(Stack *s) {
+ if (s->head == NULL) return NULL;
+ return &(s->head->val);
+}
+
+void stack_pop(Stack *s) {
+ if (s->head == NULL) return;
+ struct listnode *next = s->head->next;
+ free(s->head);
+ s->head = next;
+}
+
+char buf[4096];
+
+int main() {
+ Stack s[9];
+ FILE *fp = fopen("input", "r");
+ fread(buf, 1, 36 * 8, fp);
+ for (int i = 0; i < 9; i++) {
+ for (int j = 0; j < 8; j++) {
+ char c = buf[(7 - j) * 36 + i * 4 + 1];
+ if (c != ' ') {
+ stack_push(&s[i], c);
+ }
+ }
+ }
+ fgets(buf, 4096, fp);
+ fgets(buf, 4096, fp);
+ int amount, from, to;
+ while (fscanf(fp, "move %d from %d to %d\n", &amount, &from, &to) > 0) {
+ for (int i = 0; i < amount; i++) {
+ char c = *stack_top(&s[from - 1]);
+ stack_pop(&s[from - 1]);
+ stack_push(&s[to - 1], c);
+ }
+ }
+ for (int i = 0; i < 9; i++) {
+ printf("%c", *stack_top(&s[i]));
+ }
+ printf("\n");
+ return 0;
+}
diff --git a/advent-of-code/2022/05/2.c b/advent-of-code/2022/05/2.c
new file mode 100644
index 0000000..8a3215d
--- /dev/null
+++ b/advent-of-code/2022/05/2.c
@@ -0,0 +1,64 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+struct listnode {
+ struct listnode *next;
+ char val;
+};
+typedef struct {
+ struct listnode *head;
+} Stack;
+
+void stack_push(Stack *s, char val) {
+ struct listnode *n = malloc(sizeof(struct listnode));
+ n->next = s->head;
+ n->val = val;
+ s->head = n;
+}
+
+char* stack_top(Stack *s) {
+ if (s->head == NULL) return NULL;
+ return &(s->head->val);
+}
+
+void stack_pop(Stack *s) {
+ if (s->head == NULL) return;
+ struct listnode *next = s->head->next;
+ free(s->head);
+ s->head = next;
+}
+
+char buf[4096];
+
+int main() {
+ Stack s[9];
+ FILE *fp = fopen("input", "r");
+ fread(buf, 1, 36 * 8, fp);
+ for (int i = 0; i < 9; i++) {
+ for (int j = 0; j < 8; j++) {
+ char c = buf[(7 - j) * 36 + i * 4 + 1];
+ if (c != ' ') {
+ stack_push(&s[i], c);
+ }
+ }
+ }
+ fgets(buf, 4096, fp);
+ fgets(buf, 4096, fp);
+ int amount, from, to;
+ while (fscanf(fp, "move %d from %d to %d\n", &amount, &from, &to) > 0) {
+ for (int i = 0; i < amount; i++) {
+ char c = *stack_top(&s[from - 1]);
+ stack_pop(&s[from - 1]);
+ buf[i] = c;
+ }
+ for (int i = 0; i < amount; i++) {
+ int n = amount - i - 1;
+ stack_push(&s[to-1], buf[n]);
+ }
+ }
+ for (int i = 0; i < 9; i++) {
+ printf("%c", *stack_top(&s[i]));
+ }
+ printf("\n");
+ return 0;
+}
diff --git a/advent-of-code/2022/05/input b/advent-of-code/2022/05/input
new file mode 100644
index 0000000..d4cd60a
--- /dev/null
+++ b/advent-of-code/2022/05/input
@@ -0,0 +1,513 @@
+ [B] [L] [J]
+ [B] [Q] [R] [D] [T]
+ [G] [H] [H] [M] [N] [F]
+ [J] [N] [D] [F] [J] [H] [B]
+ [Q] [F] [W] [S] [V] [N] [F] [N]
+[W] [N] [H] [M] [L] [B] [R] [T] [Q]
+[L] [T] [C] [R] [R] [J] [W] [Z] [L]
+[S] [J] [S] [T] [T] [M] [D] [B] [H]
+ 1 2 3 4 5 6 7 8 9
+
+move 5 from 4 to 5
+move 2 from 5 to 8
+move 2 from 9 to 1
+move 2 from 9 to 1
+move 1 from 5 to 3
+move 10 from 5 to 8
+move 1 from 4 to 7
+move 1 from 1 to 2
+move 5 from 3 to 7
+move 1 from 2 to 8
+move 21 from 8 to 5
+move 13 from 5 to 7
+move 2 from 9 to 4
+move 1 from 7 to 4
+move 5 from 1 to 4
+move 1 from 5 to 7
+move 2 from 2 to 7
+move 1 from 3 to 2
+move 1 from 1 to 6
+move 7 from 5 to 9
+move 16 from 7 to 4
+move 7 from 9 to 3
+move 1 from 7 to 5
+move 1 from 3 to 8
+move 3 from 2 to 7
+move 1 from 8 to 9
+move 3 from 3 to 6
+move 21 from 4 to 9
+move 1 from 5 to 7
+move 4 from 4 to 9
+move 8 from 6 to 3
+move 6 from 7 to 1
+move 12 from 9 to 8
+move 6 from 7 to 2
+move 3 from 6 to 5
+move 1 from 6 to 9
+move 4 from 8 to 6
+move 3 from 8 to 5
+move 4 from 1 to 8
+move 4 from 6 to 1
+move 2 from 1 to 3
+move 1 from 5 to 8
+move 2 from 2 to 8
+move 5 from 8 to 3
+move 4 from 2 to 7
+move 5 from 8 to 1
+move 2 from 1 to 7
+move 1 from 8 to 2
+move 2 from 1 to 7
+move 11 from 9 to 2
+move 1 from 8 to 5
+move 2 from 9 to 4
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+move 1 from 5 to 6
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+move 2 from 2 to 7
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+move 16 from 3 to 1
+move 3 from 2 to 1
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+move 4 from 1 to 5
+move 4 from 7 to 1
+move 8 from 5 to 8
+
generated by cgit v1.0 at 2025-12-29 19:35:42 +0000