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+// Alles-Header.
+#include <bits/stdc++.h>
+
+// Setzt deutsche Tastaturlayout / toggle mit alt + space
+setxkbmap de
+setxkbmap de,us -option grp:alt_space_toggle
+
+// Schnelle Ein-/Ausgabe mit cin/cout.
+cin.tie(nullptr)->ios::sync_with_stdio(false);
+
+// Set mit eigener Sortierfunktion.
+set<point2, decltype(comp)> set1(comp);
+
+// STL-Debugging, Compiler flags.
+-D_GLIBCXX_DEBUG
+#define _GLIBCXX_DEBUG
+
+// 128-Bit Integer/Float. Muss zum Einlesen/Ausgeben
+// in einen int oder long long gecastet werden.
+__int128, __float128
+
+// float mit Decimaldarstellung
+#include <decimal/decimal>
+std::decimal::decimal128
+
+// 1e18 < INF < Max_Value / 2
+constexpr ll INF = 0x3FFF'FFFF'FFFF'FFFFll;
+// 1e9 < INF < Max_Value / 2
+constexpr int INF = 0x3FFF'FFFF;