From 5ab8a5088b729a9953b8dff1b2a985dc8fb2098b Mon Sep 17 00:00:00 2001
From: mzuenni <michi.zuendorf@gmail.com>
Date: Mon, 27 Jun 2022 17:19:28 +0200
Subject: updated tcr

---
 math/discreteNthRoot.cpp | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 math/discreteNthRoot.cpp

(limited to 'math/discreteNthRoot.cpp')

diff --git a/math/discreteNthRoot.cpp b/math/discreteNthRoot.cpp
new file mode 100644
index 0000000..9249f73
--- /dev/null
+++ b/math/discreteNthRoot.cpp
@@ -0,0 +1,5 @@
+ll root(ll a, ll b, ll m) {
+	ll g = findPrimitive(m);
+	ll c = dlog(powMod(g, a, m), b, m); //diskreter logarithmus
+	return c < 0 ? -1 : powMod(g, c, m);
+}
-- 
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