1 files changed, 26 insertions, 0 deletions
diff --git a/2021/utils.h b/2021/utils.h
new file mode 100644
index 0000000..b96f570
--- /dev/null
+++ b/2021/utils.h
@@ -0,0 +1,26 @@
+#ifndef UTILS_H
+#define UTILS_H
+
+void split (std::vector<std::string> &vec, std::string str, std::string del) {
+    auto token = str.find(del);
+    if (token != std::string::npos) {
+        vec.push_back(str.substr(0, token));
+        split(vec, str.substr(token+del.size()), del);
+    } else { vec.push_back(str); }
+}
+
+// trim
+static inline void ltrim(std::string &s) {
+    s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](unsigned char ch) {
+        return !std::isspace(ch);
+    }));
+}
+static inline void rtrim(std::string &s) {
+    s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigned char ch) {
+        return !std::isspace(ch);
+    }).base(), s.end());
+}
+static inline void trim(std::string &s) { ltrim(s); rtrim(s); }
+
+
+#endif