Pujan Day 1 Advent

Day 1/Pujan/cpp/main.cpp

@@ -0,0 +1,43 @@
+#include <fstream>
+#include <sstream>
+#include <iostream>
+#include <iomanip>
+#include <vector>
+
+int main() 
+{
+    std::string filename("data.txt");
+    std::ifstream input{filename};
+
+    int prev = 0;
+    int current = 0;
+    int counter = 0;
+
+    if(!input.is_open())
+    {
+        std::cerr << "Couldn't read file: " << filename << "\n";
+        return 1;
+    }
+    
+    for (std::string line; std::getline(input, line);) 
+    {
+        if (prev == 0)
+        {
+            prev = std::stoi(line);
+            continue;
+        }
+        else
+        {
+            current = std::stoi(line);
+            
+            if (prev < current)
+            {
+                counter ++;
+            }
+
+            prev = current;
+        }
+    }
+    std::cout << counter << std::endl;
+
+}