started to work through errors

.vscode/settings.json

@@ -1,5 +1,6 @@
 {
     "files.associations": {
+        "iostream": "cpp",
         "*.tcc": "cpp"
     }
 }

.vscode/tasks.json

@@ -2,22 +2,20 @@
     "tasks": [
         {
             "type": "cppbuild",
-            "label": "C/C++: gcc build active file",
+            "label": "C/C++: cl.exe build active file",
-            "command": "/usr/bin/g++",
+            "command": "cl.exe",
             "args": [
-                "--std",
+                "/Zi",
-                "gnu++23",
+                "/EHsc",
-                "-fdiagnostics-color=always",
+                "/nologo",
-                "-g",
+                "/Fe${fileDirname}\\${fileBasenameNoExtension}.exe",
-                "${file}",
+                "${file}"
-                "-o",
-                "${fileDirname}/${fileBasenameNoExtension}"
             ],
             "options": {
                 "cwd": "${fileDirname}"
             },
             "problemMatcher": [
-                "$gcc"
+                "$msCompile"
             ],
             "group": {
                 "kind": "build",

2/input.txt

@@ -1,3 +1,9 @@
+64 63 64 66 66
+51 49 50 53 59
+86 87 88 90 92 93 93 90
+3 5 8 8 10 14
+20 23 25 25 25
+81 83 84 85 87
 87 90 92 95 96 93
 12 15 16 17 17
 26 27 29 31 34 36 40
@@ -8,9 +14,6 @@
 60 63 65 63 65 69
 70 73 76 79 77 78 84
 25 27 29 32 35 35 36
-86 87 88 90 92 93 93 90
-20 23 25 25 25
-3 5 8 8 10 14
 3 4 7 9 12 12 14 20
 72 75 79 80 82
 5 7 11 14 15 18 15
@@ -24,9 +27,7 @@
 13 16 17 24 26 28 34
 16 14 17 20 21 23 26 28
 30 28 30 32 34 36 33
-64 63 64 66 66
 27 25 27 29 31 34 38
-51 49 50 53 59
 20 18 19 22 20 22 25 28
 25 23 24 26 28 25 22
 11 10 11 8 9 10 10
@@ -994,7 +995,6 @@
 54 52 49 47 46
 18 15 13 12 9
 32 33 36 38 40 42 45
-81 83 84 85 87
 73 70 69 66 65 62 60 58
 89 91 92 93 94 96 97
 58 56 55 52 49 48 45 43

2/puzzle2.cpp

@@ -16,6 +16,7 @@ enum Direction {
 int main(){
     string line;
     int safeReports = 0;
+    stringstream wholeDoc;
 
     ifstream puzzle("input.txt", ifstream::in);
 
@@ -36,23 +37,24 @@ int main(){
             int prevlevel = currentLevels.front();
             currentLevels.pop_front();
             numOfLevelsProcessed++;
-            if (prevlevel - currentLevels.front()>0){
+            if (prevlevel < currentLevels.front()){
-                dir = UP;
-            } else if (prevlevel - currentLevels.front()< 0){
                 dir = DOWN;
+            } else if (prevlevel > currentLevels.front()){
+                dir = UP;
             } else {
-                break;
+                currentLevels.clear();
             }
 
 
-            for (int level = 0; !currentLevels.empty();level=currentLevels.front()){
+            for (int level = currentLevels.front(); !currentLevels.empty();level=currentLevels.front()){
                 if (abs(prevlevel-level)>3) {currentLevels.clear();break;}
-                if(prevlevel-level==0){ currentLevels.clear();break;}
+                if(prevlevel==level){ currentLevels.clear();break;}
-                if(dir==UP&&(prevlevel-currentLevels.front())<0) {currentLevels.clear();break;}
+                if(dir==UP&&(prevlevel<currentLevels.front())) {currentLevels.clear();break;}
-                if(dir==DOWN&&(prevlevel-currentLevels.front()>0)) {currentLevels.clear();break;}
+                if(dir==DOWN&&(prevlevel>currentLevels.front())) {currentLevels.clear();break;}
                 
                 prevlevel=currentLevels.front();
                 currentLevels.pop_front();
+                numOfLevelsProcessed++;
 
                 if(numOfLevelsProcessed==numOfLevelsInLine){
                     safeReports++;

2/puzzle2p2.cpp

@@ -0,0 +1,145 @@
+#include <stdio.h>
+#include <list>
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <vector>
+#include <sstream>
+#include <iterator>
+
+using namespace std;
+
+enum Direction {
+    UP,
+    DOWN,
+    UNSET
+}; 
+
+int main(){
+    string line;
+    int safeReports = 0;
+    stringstream wholeDoc;
+    int linesReadFromFile= 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);
+            }
+            linesReadFromFile++;
+
+            list<int> currentLevelsBackup = currentLevels;
+            int numOfLevelsProcessed = 0;
+            auto curListIt = currentLevels.begin();
+            curListIt++; //point to second item in list
+            auto RevCurListIt = currentLevels.rbegin();
+            RevCurListIt++; //points to second to last item
+            enum Direction dir; 
+            bool listDirty =false;
+            list<int>changeFromPrevLevel;
+            list<int>levelGoesUp;
+            list<int>levelGoDown;
+            list<int>levelStaysSame;
+            int totalChange=0;
+            
+            //we are going to walk the levels and see what the change is. 
+            //the frontIt is the front number (starts at 2nd entry) 
+            //backIt is the first entry (starts at 1st entry)
+
+            auto frontIt = currentLevels.begin();
+            frontIt++; 
+            auto backIt = currentLevels.begin();
+
+            for(int index = 1;frontIt!=currentLevels.end();index++){
+                int change = (*frontIt) - (*backIt);
+                totalChange+=change;
+                changeFromPrevLevel.push_back(change);
+                frontIt++;
+                backIt++;
+                if (change>0){
+                    levelGoesUp.push_front(index);
+                } else if(change<0){
+                    levelGoDown.push_front(index);
+                } else {
+                    levelStaysSame.push_front(index);
+                }
+            }
+
+            if (totalChange>0){
+                dir= UP;
+            } else if (totalChange<0){
+                dir = DOWN;
+            }
+
+            if(dir==UP&&changeFromPrevLevel.front()<0){
+                currentLevels.erase(currentLevels.begin());
+                levelGoDown.pop_front();
+                listDirty=true;
+            }
+
+            if (dir==UP&&levelGoDown.size()>1){ //if the overall direction goes up and more then 1 level go down the list is bad 
+                currentLevels.clear();
+            } else if (dir==DOWN&&levelGoesUp.size()>1){ //same as above but opiosite dirrection 
+                currentLevels.clear();
+            }
+
+            if (levelStaysSame.size()>1||(listDirty&&levelStaysSame.size()==0)){ //cant have more then 1 number the same or the list is bad 
+                currentLevels.clear();
+            }
+
+            if (!currentLevels.empty()&&levelStaysSame.size()==1){
+                auto itNumberToDelete = currentLevels.begin();
+                advance(itNumberToDelete,levelStaysSame.front());
+                currentLevels.erase(itNumberToDelete);
+                listDirty = true;
+            }
+
+            if(listDirty&&dir==DOWN&&levelGoesUp.size()>0){
+                currentLevels.clear();
+            } else if(listDirty&&dir==UP&&levelGoDown.size()>0){
+                currentLevels.clear();
+            }
+
+            if (!currentLevels.empty()){
+                if (dir==UP&&levelGoDown.size()==1){
+                    list<int>::iterator itNumberToDelete = currentLevels.begin();
+                    advance(itNumberToDelete,levelGoDown.front());
+                    currentLevels.erase(itNumberToDelete);
+                    listDirty = true;
+                } else if (dir==DOWN&&levelGoesUp.size()==1){
+                    auto itNumberToDelete = currentLevels.begin();
+                    advance(itNumberToDelete,levelGoesUp.front());
+                    currentLevels.erase(itNumberToDelete);
+                    listDirty=true;
+                }
+
+                int numOfLevelsInLine = currentLevels.size();
+            
+                //need to pull the first one to have something to compare to
+                int prevlevel = currentLevels.front();
+                currentLevels.pop_front();
+                numOfLevelsProcessed++;
+
+                for (int level = currentLevels.front(); !currentLevels.empty();level=currentLevels.front()){
+                    if (abs(prevlevel-level)>3) {currentLevels.clear();break;}
+                    
+                    prevlevel=currentLevels.front();
+                    currentLevels.pop_front();
+                    numOfLevelsProcessed++;
+
+                    if(numOfLevelsProcessed==numOfLevelsInLine){
+                        safeReports++;
+                    }
+                }
+
+            }
+        }
+cout <<"lines read in: " << linesReadFromFile<<"\n";
+cout <<"safe Reports: " << safeReports;
+puzzle.close();
+}