Initial Course

2026-08-11 17:40:36 +03:00
commit 9aed1d1d86
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+#pragma once
+
+#include <optional>
+#include <string>
+#include <vector>
+
+namespace cpp17 {
+
+[[nodiscard]] auto safe_divide(int lhs, int rhs) -> std::optional<double>;
+[[nodiscard]] auto find_user(const std::vector<std::string>& users, const std::string& name)
+    -> std::optional<std::size_t>;
+[[nodiscard]] auto first_positive(const std::vector<int>& data) -> std::optional<int>;
+
+}  // namespace cpp17