Remove unused includes

src/index_guesser.c

 #include <inttypes.h>
-#include <stdbool.h>
-#include <unistd.h>
-
 #include <stdlib.h>
 #include <stdio.h>
-#include <string.h>
 
 #include "util.h"
 
@@ -13,7 +9,7 @@
 const uint64_t MIN_CHOICE = 1;
 const uint64_t MAX_CHOICE = 256;
 
-static inline page_t *init_pages() {
+static inline page_t *init_pages(void) {
     return calloc(MAX_CHOICE, sizeof(page_t));
 }
 
@@ -22,7 +18,7 @@ static inline void flush_all_pages(page_t *pages) {
 }
 
 static inline size_t guess_accessed_page(page_t *pages) {
-    // TODO: Implement me! 
+    // TODO: Implement me!
 
     return 0;
 }
@@ -33,9 +29,9 @@ int main() {
     flush_all_pages(pages);
 
     do_access(pages);
-    
+
     size_t guess = guess_accessed_page(pages);
-    if (guess) { 
+    if (guess > 0) {
         printf("%zu\n", guess);
     }
 }