From fe354a84cbc940b9183cf8c8b8d84acf00f079a8 Mon Sep 17 00:00:00 2001
From: Aleksey Lobanov <i@likemath.ru>
Date: Mon, 24 Feb 2020 22:53:14 +0300
Subject: [PATCH] Fixed possible linear transormations

Because we use only Z[2] instead of R or even Z
---
 main.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/main.cpp b/main.cpp
index 5088524..b2eb0a4 100644
--- a/main.cpp
+++ b/main.cpp
@@ -105,7 +105,9 @@ vector< MyMatrix > get_good_matrices() {
     vector< MyMatrix > res;
     for (size_t cur_val = 1ll << (ARGS_COUNT * ARGS_COUNT); cur_val != 0; --cur_val) {
         MyMatrix cur_matrix(cur_val);
-        if ( cur_matrix.get_determinant() != 0 )
+        Storage det = cur_matrix.get_determinant();
+        // if ( det %2 != 0 )
+        if ( det == 1 or det == Storage(-1) )
             res.push_back(cur_matrix);
     }
     return res;