Added year directories for advent of code

2022-12-02 13:37:41 +01:00
parent 27d00340b9
commit 6c9525248e
31 changed files with 275 additions and 0 deletions
--- a/advent_of_code/2021/d10/main.cpp
+++ b/advent_of_code/2021/d10/main.cpp
@@ -0,0 +1,163 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+enum HOOKIES {
+    // PARENTHESIS = 3,
+    // BRACKET = 57,
+    // ACCOLADE = 1197,
+    // POINTY_BRACKET = 25137,
+
+    PARENTHESIS = 1,
+    BRACKET = 2,
+    ACCOLADE = 3,
+    POINTY_BRACKET = 4,
+};
+
+unsigned int line_score_corrupted(const string& s){
+    stack<HOOKIES> chars;
+    unsigned int score = 0;
+
+    for(auto c : s){
+        if(c == '(' || c == '[' || c == '{' || c == '<'){
+            if(c == '('){
+                chars.push(PARENTHESIS);
+            } else if(c == '['){
+                chars.push(BRACKET);
+            } else if(c == '{'){
+                chars.push(ACCOLADE);
+            } else{
+                chars.push(POINTY_BRACKET);
+            }
+        } else if(c == ')' || c == ']' || c == '}' || c == '>'){
+            if(chars.empty()){
+                score = 0;
+                break;
+            }
+
+            if(c == ')'){
+                if(chars.top() == PARENTHESIS){
+                    chars.pop();
+                } else{
+                    score = PARENTHESIS;
+                    break;
+                }
+            } else if(c == ']'){
+                if(chars.top() == BRACKET){
+                    chars.pop();
+                } else{
+                    score = BRACKET;
+                    break;
+                }
+            } else if(c == '}'){
+                if(chars.top() == ACCOLADE){
+                    chars.pop();
+                } else{
+                    score = ACCOLADE;
+                    break;
+                }
+            } else{
+                if(chars.top() == POINTY_BRACKET){
+                    chars.pop();
+                } else{
+                    score = POINTY_BRACKET;
+                    break;
+                }
+            }
+        } else{
+            break;
+        }
+    }
+
+    return score;
+}
+
+unsigned int line_score_missing(const string& s){
+    stack<HOOKIES> chars;
+
+    bool corrupted = false;
+
+    for(auto c : s){
+        if(c == '(' || c == '[' || c == '{' || c == '<'){
+            if(c == '('){
+                chars.push(PARENTHESIS);
+            } else if(c == '['){
+                chars.push(BRACKET);
+            } else if(c == '{'){
+                chars.push(ACCOLADE);
+            } else{
+                chars.push(POINTY_BRACKET);
+            }
+        } else if(c == ')' || c == ']' || c == '}' || c == '>'){
+            if(chars.empty()){
+                corrupted = true;
+                break;
+            }
+
+            if(c == ')'){
+                if(chars.top() == PARENTHESIS){
+                    chars.pop();
+                } else{
+                    corrupted = true;
+                    break;
+                }
+            } else if(c == ']'){
+                if(chars.top() == BRACKET){
+                    chars.pop();
+                } else{
+                    corrupted = true;
+                    break;
+                }
+            } else if(c == '}'){
+                if(chars.top() == ACCOLADE){
+                    chars.pop();
+                } else{
+                    corrupted = true;
+                    break;
+                }
+            } else{
+                if(chars.top() == POINTY_BRACKET){
+                    chars.pop();
+                } else{
+                    corrupted = true;
+                    break;
+                }
+            }
+        } else{
+            corrupted = true;
+            break;
+        }
+    }
+
+    unsigned int score = 0;
+    if(!corrupted){
+        while(!chars.empty()){
+            auto h = chars.top();
+            score = score * 5 + h;
+            chars.pop();
+        }
+
+        return score;
+    }
+
+    return score;
+}
+
+int main(){
+    ifstream input_file("input.txt");
+    string line;
+
+    unsigned int total_score = 0;
+
+    if(input_file.is_open()){
+        while(getline(input_file, line)){
+            // total_score += line_score_corrupted(line);
+
+            total_score += line_score_missing(line);
+        }
+    }
+
+    cout << "Total syntax score: " << total_score << endl;
+
+    return 0;
+}