Add solution for 2025 Day 1

res/2025/day01/test_input.txt

@@ -0,0 +1,10 @@
+L68
+L30
+R48
+L5
+R60
+L55
+L1
+L99
+R14
+L82

src/2025/Day01.cpp

@@ -5,10 +5,14 @@ namespace y2025::day01
   using InputType = std::vector<int>;
   REGISTER_DAY(2025, Day01, InputType, int);
 
-  REGISTER_TEST_EXAMPLE(2025, Day01, ExampleInput, 1, 0);
+  REGISTER_TEST_EXAMPLE(2025, Day01, ExampleInput, 1, 3);
-  REGISTER_TEST(2025, Day01, Input, 1, 0);
+  REGISTER_TEST(2025, Day01, Input, 1, 1152);
-  REGISTER_TEST_EXAMPLE(2025, Day01, ExampleInput, 2, 0);
+  REGISTER_TEST_EXAMPLE(2025, Day01, ExampleInput, 2, 6);
-  REGISTER_TEST(2025, Day01, Input, 2, 0);
+  REGISTER_TEST(2025, Day01, Input, 2, 6671);
+
+  void test(int i)
+  {
+  }
 
   READ_INPUT(input)
   {
@@ -17,8 +21,11 @@ namespace y2025::day01
     while (std::getline(input, str))
     {
       std::stringstream ss{str};
+      char c;
       int n;
-      ss >> n;
+      ss >> c >> n;
+      if (c == 'L')
+        n = -n;
       vec.emplace_back(n);
     }
     return vec;
@@ -26,11 +33,36 @@ namespace y2025::day01
 
   OUTPUT1(input)
   {
-    return 0;
+    int dial = 50;
+    int zeros = 0;
+    for (int n : input)
+    {
+      dial += n;
+      dial %= 100;
+      dial = (dial + 100) % 100;
+      if (dial == 0)
+        zeros++;
+    }
+    return zeros;
   }
 
   OUTPUT2(input)
   {
-    return 0;
+    int dial = 50;
+    int zeros = 0;
+    for (int n : input)
+    {
+      for (int i = 0; i < std::abs(n); i++)
+      {
+        dial += Helper::Sign(n);
+        dial = ((dial % 100) + 100) % 100;
+        if (dial == 0)
+        {
+          zeros++;
         }
       }
+    }
+    return zeros;
+  }
+
+}