From 48b6073e4b9dc40f241aae2994117da725054e0c Mon Sep 17 00:00:00 2001
From: Bartosz Nowak <bartekn337@gmail.com>
Date: Mon, 18 Dec 2023 19:32:58 +0100
Subject: [PATCH] cleanup

---
 calc.py                  | 3 +++
 src/fri/fri_config.cairo | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 calc.py

diff --git a/calc.py b/calc.py
new file mode 100644
index 000000000..61fce91fe
--- /dev/null
+++ b/calc.py
@@ -0,0 +1,3 @@
+DEFAULT_PRIME = 2**251 + 17 * 2**192 + 1
+
+print(hex(pow(1934568044210770965733097210694395167600009938751278224656090409051406060084, 41, DEFAULT_PRIME)))
\ No newline at end of file
diff --git a/src/fri/fri_config.cairo b/src/fri/fri_config.cairo
index fa1fccf53..1bb8011df 100644
--- a/src/fri/fri_config.cairo
+++ b/src/fri/fri_config.cairo
@@ -1,3 +1,4 @@
+use core::array::ArrayTrait;
 use core::option::OptionTrait;
 use core::array::SpanTrait;
 use core::traits::Into;
@@ -15,7 +16,7 @@ struct FriConfig {
     n_layers: felt252,
     // Array of size n_layers - 1, each entry is a configuration of a table commitment for the
     // corresponding inner layer.
-    inner_layers: Span<TableCommitmentConfig>,
+    inner_layers: Array<TableCommitmentConfig>,
     // Array of size n_layers, each entry represents the FRI step size,
     // i.e. the number of FRI-foldings between layer i and i+1.
     fri_step_sizes: Span<felt252>,