1 files changed, 41 insertions, 0 deletions
diff --git a/advent-of-code/2022/01/2.c b/advent-of-code/2022/01/2.c
new file mode 100644
index 0000000..1ab897f
--- /dev/null
+++ b/advent-of-code/2022/01/2.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define BUFSZ 1024
+
+char buf[BUFSZ];
+
+int maxheap[3] = {0, 0, 0};
+
+void push(int val) {
+    int minidx = 0;
+    for (int i = 0; i < 3; i++) {
+        if (maxheap[i] < maxheap[minidx]) {
+            minidx = i;
+        }
+    }
+    if (maxheap[minidx] < val) {
+        maxheap[minidx] = val;
+    }
+}
+
+int main() {
+    int maxval = 0;
+    int cur = 0;
+    FILE* fp = fopen("input", "r");
+    while (fgets(buf, BUFSZ, fp)) {
+        int len = strlen(buf);
+        char *end;
+        if (len <= 1) {
+            maxval = cur > maxval ? cur : maxval;
+            push(cur);
+            cur = 0;
+        } else {
+            cur += strtol(buf, &end, 10);
+        }
+    }
+    printf("%d\n", maxheap[0] + maxheap[1] + maxheap[2]);
+    return 0;
+}
+