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2026-06-03 09:20:51 +09:00
commit f50ed902fe
65 changed files with 6033 additions and 0 deletions
--- a/source/Math/PolladRho.cpp
+++ b/source/Math/PolladRho.cpp
@@ -0,0 +1,22 @@
+void fact(ll n, vl& ret) {
+    if(n == 1) return;
+    else if(n%2 == 0) ret.pb(2), fact(n/2, ret);
+    else if(is_p(n)) ret.pb(n);
+    else {
+        ll a, b, c, g = n;
+        auto f = [&c, &n](ll x)->ll{return (c+(lll)x*x)%n;};
+        
+        do {
+            if(g == n) a=b=rand()%(n-2)+2, c=rand()%20+1;
+            a=f(a); b=f(f(b));
+            g = gcd(a-b, n);
+        } while(g == 1);
+        fact(g, ret); fact(n/g, ret);
+    }
+}
+vl po_rho(ll n) {
+    vl ret;
+    fact(n, ret);
+    sort(all(ret));
+    return ret;
+}