Added day 6. 6a needs some optimisation, or a lote of memory

1 files changed, 69 insertions, 0 deletions

diff --git a/6.c b/6.c
new file mode 100644
index 0000000..8476b74
--- /dev/null
+++ b/6.c
@@ -0,0 +1,69 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#define MAX_BOARDS 100
+
+static char *ReadLine(char *p, size_t size, FILE *fp)
+{
+    if ((p=fgets(p, size, fp)))
+    {
+        size_t l = strlen(p);
+
+        while(l && p[l-1] == '\n')
+        {
+            p[--l] = 0;
+        }
+    }
+
+    return p;
+}
+
+int main(void)
+{
+    char buff[1024];
+    int *num = NULL;
+    int num_count = 0;
+    char *p = NULL;
+    int f = 0;
+    int cycle = 0;
+
+    ReadLine(buff, sizeof buff, stdin);
+
+    p = strtok(buff, ",");
+
+    while(p)
+    {
+        num = realloc(num, (num_count + 1) * sizeof *num);
+        num[num_count++] = atoi(p);
+        p = strtok(NULL, ",");
+    }
+
+    for(cycle = 0; cycle < 80; cycle++)
+    {
+        int to_add = 0;
+
+        for(f = 0; f < num_count; f++)
+        {
+            if (num[f] == 0)
+            {
+                to_add++;
+                num[f] = 6;
+            }
+            else
+            {
+                num[f]--;
+            }
+        }
+
+        for(f = 0; f < to_add; f++)
+        {
+            num = realloc(num, (num_count + 1) * sizeof *num);
+            num[num_count++] = 8;
+        }
+    }
+
+    printf("num_count=%d\n", num_count);
+
+    return 0;
+}