added line precessing

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+    "files.associations": {
+        "*.tcc": "cpp"
+    }
+}

.vscode/tasks.json

@@ -3,8 +3,10 @@
         {
             "type": "cppbuild",
             "label": "C/C++: gcc build active file",
-            "command": "/usr/bin/gcc",
+            "command": "/usr/bin/g++",
             "args": [
+                "--std",
+                "gnu++23",
                 "-fdiagnostics-color=always",
                 "-g",
                 "${file}",

2/puzzle2.cpp

@@ -0,0 +1,64 @@
+#include <stdio.h>
+#include <list>
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <vector>
+#include <sstream>
+
+using namespace std;
+
+enum Direction {
+    UP,
+    DOWN
+};
+
+int main(){
+    string line;
+    int safeReports = 0;
+
+    ifstream puzzle("input.txt", ifstream::in);
+
+        while (getline(puzzle, line)) {
+            istringstream lineStream(line);
+            string numberString;
+            list<int> currentLevels;
+            while (getline(lineStream, numberString, ' ')) {
+                int number = stoi(numberString);
+                currentLevels.push_back(number);
+            }
+
+            int numOfLevelsInLine = currentLevels.size();
+            int numOfLevelsProcessed = 0;
+
+            //need to pull the first one to have something to compare to
+            enum Direction dir;
+            int prevlevel = currentLevels.front();
+            currentLevels.pop_front();
+            numOfLevelsProcessed++;
+            if (prevlevel - currentLevels.front()>0){
+                dir = UP;
+            } else if (prevlevel - currentLevels.front()< 0){
+                dir = DOWN;
+            } else {
+                break;
+            }
+
+
+            for (int level = 0; !currentLevels.empty();level=currentLevels.front()){
+                if (abs(prevlevel-level)>3) {currentLevels.clear();break;}
+                if(prevlevel-level==0){ currentLevels.clear();break;}
+                if(dir==UP&&(prevlevel-currentLevels.front())<0) {currentLevels.clear();break;}
+                if(dir==DOWN&&(prevlevel-currentLevels.front()>0)) {currentLevels.clear();break;}
+                
+                prevlevel=currentLevels.front();
+                currentLevels.pop_front();
+
+                if(numOfLevelsProcessed==numOfLevelsInLine){
+                    safeReports++;
+                }
+            }
+        }
+cout << safeReports;
+puzzle.close();
+}