upd

src/utils/random.hpp

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <random>
+#include <chrono>
+
+namespace utils::random {
+static inline std::mt19937_64 rnd(std::chrono::system_clock::now().time_since_epoch().count());
+
+inline uint64_t RandInt(uint64_t max_n) {
+  return rnd() % max_n;
+}
+}