1 files changed, 0 insertions, 13 deletions
diff --git a/math/sqrtModCipolla.cpp b/math/sqrtModCipolla.cpp
deleted file mode 100644
index 12bc590..0000000
--- a/math/sqrtModCipolla.cpp
+++ /dev/null
@@ -1,13 +0,0 @@
-bool isSquare(ll x, ll p){
-    return powMod(x, p/2, p) != p-1;
-}
-
-// Teste vorher, ob sqrt(n) mod p existiert!
-ll sqrtMod(ll n, ll p){
-    if(n == 0) return 0;
-    ll r0 = 1, r1 = 0, b0 = 1, b1 = 1, w;
-    while(isSquare(w=(b0*b0-n+p)%p, p)) b0 = rng()%p;
-    for(ll e = (p+1)/2; e; e /= 2, tie(b0, b1) = pair((b0*b0 + b1*b1%p*w)%p, 2*b0*b1%p))
-        if(e & 1) tie(r0, r1) = pair((r0*b0 + r1*b1%p*w)%p, (r0*b1 + b0*r1)%p);
-    return r0;
-}