1 files changed, 37 insertions, 0 deletions

diff --git a/2023/01/src/part1.cpp b/2023/01/src/part1.cpp
new file mode 100644
index 0000000..3034d43
--- /dev/null
+++ b/2023/01/src/part1.cpp
@@ -0,0 +1,37 @@
+#include <iostream>
+#include <fstream>
+
+template<typename Iter>
+int search(Iter from, Iter to)
+{
+    while(from < to)
+    {
+        char c = *(from++);
+        if (std::isdigit(c))
+        {
+            return c - '0';
+        }
+    }
+    return 0;
+}
+
+int main(void)
+{
+    int answer{};
+
+    std::ifstream input{ "./resources/input.txt" };
+    if (input)
+    {
+        std::string line;
+        while(not std::getline(input, line).eof())
+        {
+            answer += 10 * search(line.begin(), line.end());
+            answer += search(line.rbegin(), line.rend());
+        }
+
+    }
+    input.close();
+
+    std::cout << answer << std::endl;
+    return 0;
+}