Day 3 Question 1, Plus some day2 stuff?

Day3/Question1/main.cpp

@@ -0,0 +1,41 @@
+#include <cstdint>
+#include <fstream>
+#include <iostream>
+#include <string>
+
+int main() {
+  std::fstream input("input");
+  std::string currentLine = "";
+  uint64_t totalJolt = 0, lineLength = 0;
+  while (std::getline(input, currentLine)) {
+    char mostSignificantDigit = '0', leastSignificantDigit = '0';
+    lineLength = currentLine.length();
+    for (uint16_t currentPosition = 0; currentPosition < lineLength;
+         currentPosition++) {
+      char digit = currentLine[currentPosition];
+
+      if (mostSignificantDigit < digit) {
+        // Since this is the last digit
+        if (currentPosition == lineLength - 1) {
+          leastSignificantDigit = digit;
+          continue;
+        }
+
+        // Otherwise business as usual
+        mostSignificantDigit = digit;
+        leastSignificantDigit = '0';
+        continue;
+      }
+
+      if (leastSignificantDigit < digit) {
+        leastSignificantDigit = digit;
+      }
+    }
+
+    // Just a simple char > uint conversion
+    totalJolt +=
+        (10 * (mostSignificantDigit - 48)) + (leastSignificantDigit - 48);
+  }
+  std::cout << totalJolt << "\n";
+  return 0;
+}