init commit

3sem/kr16/01-ai.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int
+main()
+{
+    uint64_t num;
+    int free_blocks = 0;
+
+    while (scanf("%lx", &num) != EOF) {
+        for (int i = 0; i < 64; i += 2) {
+            if (((num >> i) & 0x3) == 0x0) {
+                free_blocks++;
+            }
+        }
+    }
+
+    printf("%d\n", free_blocks);
+    return 0;
+}