1 files changed, 0 insertions, 41 deletions

diff --git a/old/2021-11-10-beforeremovingchecker/utils.h b/old/2021-11-10-beforeremovingchecker/utils.h
deleted file mode 100644
index 80c33ae..0000000
--- a/old/2021-11-10-beforeremovingchecker/utils.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef UTILS_H
-#define UTILS_H
-
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define POW2TO6             64ULL
-#define POW2TO11            2048ULL
-#define POW2TO12            4096ULL
-#define POW3TO7             2187ULL
-#define POW3TO8             6561ULL
-#define FACTORIAL4          24ULL
-#define FACTORIAL6          720ULL
-#define FACTORIAL7          5040ULL
-#define FACTORIAL8          40320ULL
-#define FACTORIAL12         479001600ULL
-#define BINOM12ON4          495ULL
-#define BINOM8ON4           70ULL
-#define MIN(a,b)            (((a) < (b)) ? (a) : (b))
-#define MAX(a,b)            (((a) > (b)) ? (a) : (b))
-
-void        apply_permutation(int *perm, int *set, int n);
-int         binomial(int n, int k);
-int         digit_array_to_int(int *a, int n, int b);
-int         factorial(int n);
-void        index_to_perm(int p, int n, int *r);
-void        index_to_subset(int s, int n, int k, int *r);
-void        int_to_digit_array(int a, int b, int n, int *r);
-void        int_to_sum_zero_array(int x, int b, int n, int *a);
-int         invert_digits(int a, int b, int n);
-bool        is_perm(int *a, int n);
-bool        is_subset(int *a, int n, int k);
-int         perm_sign(int *a, int n);
-int         perm_to_index(int *a, int n);
-int         powint(int a, int b);
-int         subset_to_index(int *a, int n, int k);
-void        sum_arrays_mod(int *src, int *dst, int n, int m);
-void        swap(int *a, int *b);
-
-#endif