Working on advent of code day 8

advent_of_code/d8/main.cpp

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+#include <bits/stdc++.h>
+
+using namespace std;
+
+string file_name = "8.txt";
+// string file_name = "test_text.txt";
+
+vector<pair<array<string, 10>, array<string, 4>>> input_text;
+
+pair<array<string, 10>, array<string, 4>> parse_line(const string &s){
+    istringstream ss(s);
+    pair<array<string, 10>, array<string, 4>> result;
+    string word;
+
+    for(size_t i = 0; i < 10; ++i){
+        ss >> word;
+
+        result.first[i] = word;
+    }
+
+    // There should be a pipe | here, which doesn't need to be put into the strings
+    ss >> word;
+
+    for(size_t i = 0; i < 4; ++i){
+        ss >> word;
+
+        result.second[i] = word;
+    }
+
+    return result;
+}
+
+map<int, string> identify_digits(const array<string, 10> &digits){
+    map<int, string> digit_strings;
+
+    vector<string> size_fives;
+    vector<string> size_six;
+
+    for(size_t i = 0; i < 10; ++i){
+        size_t ds = digits[i].size();
+
+        if(ds == 2){
+            digit_strings[1] = digits[i];
+        } else if(ds == 3){
+            digit_strings[7] = digits[i];
+        } else if(ds == 4){
+            digit_strings[4] = digits[i];
+        } else if(ds == 7){
+            digit_strings[8] = digits[i];
+        } else if(ds == 5){
+            size_fives.push_back(digits[i]);
+        } else if(ds == 6){
+            size_six.push_back(digits[i]);
+        }
+    }
+
+
+    return digit_strings;
+}
+
+int main(){
+    ios::sync_with_stdio(0);
+    cin.tie(0);
+
+
+    ifstream file_stream;
+    file_stream.open(file_name);
+
+    if(file_stream.is_open()){
+        string line;
+
+        while(getline(file_stream, line)){
+            input_text.push_back(parse_line(line));
+        }
+
+        file_stream.close();
+    }
+
+
+    // Testing the input parsing
+
+    // cout << input_text.size() << endl;
+    // for(const auto &line : input_text){
+    //     for(auto word : line.first){
+    //         cout << word << " ";
+    //     }
+
+    //     cout << "| ";
+
+    //     for(auto word : line.second){
+    //         cout << word << " ";
+    //     }
+
+    //     cout << endl;
+    // }
+
+    int result = 0;
+    for(const auto &line : input_text){
+        for(size_t i = 0; i < 4; ++i){
+            size_t w = line.second[i].size();
+            if(w == 2 || w == 4 || w == 3 || w == 7){
+                result++;
+            }
+        }
+    }
+
+    cout << result << endl;
+
+
+
+
+    cout << flush;
+
+    return 0;
+}