add aoc 2022

1 files changed, 54 insertions, 0 deletions

diff --git a/advent-of-code/2022/10/1.c b/advent-of-code/2022/10/1.c
new file mode 100644
index 0000000..12ddc22
--- /dev/null
+++ b/advent-of-code/2022/10/1.c
@@ -0,0 +1,54 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <str.h>
+
+int strength = 1;
+int sum = 0;
+int time = 1;
+
+int process() {
+    if (time == 20 || time == 60 || time == 100
+            || time == 140 || time == 180 || time == 220) {
+        sum += strength * time;
+    }
+}
+
+void tick(int value) {
+    process();
+    time++;
+    strength += value;
+}
+
+int main() {
+    FILE *fp = fopen("input", "r");
+    while (true) {
+        char *rawline = fgetline(fp);
+        if (rawline == NULL) break;
+        char *line = str_strip(rawline);
+        free(rawline);
+        char** words = str_split(line, ' ');
+        if (words == NULL) {
+            free(line);
+            continue;
+        }
+        if (words[0] == NULL) {
+            free(line); free(words);
+            continue;
+        }
+        if (strcmp(words[0], "noop") == 0) {
+            tick(0);
+        } else if (strcmp(words[0], "addx") == 0) {
+            tick(0);
+            char *ptr;
+            int value = strtol(words[1], &ptr, 10);
+            tick(value);
+        }
+        str_list_free(words);
+        free(line);
+    }
+    printf("%d\n", sum);
+    return 0;
+}