feat: add challenge code

utils.cpp

@@ -0,0 +1,33 @@
+#include "utils.hpp"
+
+#include <string>
+
+namespace {
+constexpr char kSpace{' '};
+}  // namespace
+
+auto trim_whitespaces(std::string_view text) noexcept -> std::string_view
+{
+    auto leading_spaces = text.find_first_not_of(kSpace);
+    if (leading_spaces == std::string::npos) return {};
+
+    auto sub_view = text.substr(leading_spaces);
+
+    auto trailling_spaces = sub_view.find_last_not_of(kSpace);
+    if (trailling_spaces == std::string::npos) return sub_view;
+
+    return sub_view.substr(0, trailling_spaces + 1);
+}
+
+auto sanitize_text(std::string_view text) noexcept -> std::string_view
+{
+    auto leading_spaces = text.find_first_not_of(kSpace);
+    if (leading_spaces == std::string::npos) return {};
+
+    auto sub_view = text.substr(leading_spaces);
+
+    auto trailling_spaces = sub_view.find_first_of(kSpace);
+    if (trailling_spaces == std::string::npos) return sub_view;
+
+    return sub_view.substr(0, trailling_spaces);
+}