Limpie un poco el codigo

2020/day_4/passport_processing.cc

@@ -0,0 +1,134 @@
+#include <sstream>
+#include <fstream>
+#include <iostream>
+
+#include <vector>
+#include <unordered_map>
+
+#include <regex>
+
+std::vector<std::string> read_input_file() {
+  std::ifstream file("input");
+  std::vector<std::string> data;
+  std::string line;
+
+  while(std::getline(file, line)) 
+    data.push_back(line);
+
+  return data;
+}
+
+std::vector<std::string> split(const std::string &s) {
+  std::vector<std::string> tokens;
+  std::string token;
+  std::istringstream token_stream(s);
+
+  while(std::getline(token_stream, token, ' ')) tokens.push_back(token);
+
+  return tokens;
+}
+
+typedef std::unordered_map<std::string, std::string> passport;
+
+std::vector<passport> parse_passports(const std::vector<std::string> &data) {
+  std::vector<passport> passports;
+  passport current;
+  
+  for(auto &line : data) {
+    if(line != ""){
+      for(auto &field : split(line)) {
+         current[field.substr(0,3)] = field.substr(4, field.size());
+      }
+    } else {
+      passports.push_back(current);
+      current.clear();
+    }
+  }
+
+  passports.push_back(current);
+
+  return passports;
+}
+
+
+bool has_fields(const passport &passport) {
+  return passport.find("byr") != passport.end() && passport.find("iyr") != passport.end() && 
+         passport.find("eyr") != passport.end() && passport.find("hgt") != passport.end() && 
+         passport.find("hcl") != passport.end() && passport.find("ecl") != passport.end() && 
+         passport.find("pid") != passport.end();
+
+}
+
+bool validate_birth(const passport &passport) {
+  return stoi(passport.at("byr")) >= 1920 && stoi(passport.at("byr")) <= 2002;
+}
+
+bool validate_issue(const passport &passport) {
+  return stoi(passport.at("iyr")) >= 2010 && stoi(passport.at("iyr")) <= 2020;
+}
+
+bool validate_expire(const passport &passport) {
+  return stoi(passport.at("eyr")) >= 2020 && stoi(passport.at("eyr")) <= 2030;
+}
+
+bool validate_eye(const passport &passport) {
+  std::string color = passport.at("ecl");
+  return color == "amb" || color == "blu" || color == "brn" || color == "gry" || 
+         color == "grn" || color == "hzl" || color == "oth";
+}
+
+bool validate_hair(const passport &passport) {
+  return std::regex_match(passport.at("hcl"), std::regex("^#[0-9a-f]{6}$"));
+}
+
+bool validate_pid(const passport &passport) {
+  return std::regex_match(passport.at("pid"), std::regex("^[0-9]{9}$"));
+}
+
+bool validate_height(const passport &passport) {
+  std::string hgt = passport.at("hgt");
+  std::string unit = hgt.substr(hgt.size() - 2, 2);
+  int height = stoi(hgt);
+
+  if     (unit == "cm" && height >= 150 && height <= 193) return true;
+  else if(unit == "in" && height >=  59 && height <=  76) return true;
+  else return false;
+}
+
+bool full_validation(const passport &passport) {
+  return has_fields(passport)      && validate_birth(passport) && validate_issue(passport) &&
+         validate_expire(passport) && validate_hair(passport)  && validate_pid(passport)   && 
+         validate_eye(passport)    && validate_height(passport);
+}
+
+void print_passport(const passport &passport) { 
+  std::cout << "---------------------------" << std::endl;
+  for(auto &pair: passport) {
+    std::cout << "[" << pair.first << "] = " << pair.second << std::endl;
+  }
+  std::cout << "---------------------------" << std::endl;
+}
+
+
+int solve_a(const std::vector<passport> &passports) {
+  int count = 0;
+  for(auto &passport: passports) if(has_fields(passport)) count++;
+  return count;
+}
+
+int solve_b(const std::vector<passport> &passports) {
+  int count = 0;
+  for(auto &passport: passports) {
+    if(full_validation(passport)) count++;
+  }
+  return count;
+}
+
+int main() {
+  auto data = read_input_file();
+  auto passports = parse_passports(data);
+
+  std::cout << solve_a(passports) << ' ' << solve_b(passports) << std::endl;
+
+  return 0;
+}

2020/day_4/passport_processing.py

@@ -58,6 +58,7 @@ def solve_b(passports):
     return len([passport for passport in passports if full_validation(passport)])
 
 passports = parse_passports(data)
+print(len(passports))
 
 print(solve_a(passports))
 print(solve_b(passports))

2020/day_5/binary_boarding.py

@@ -8,23 +8,15 @@ def binary_partition(bsp, r):
 
     half = (r[1] + r[0]) // 2
 
-    if bsp[0] in ['F', 'L']: r = (r[0], half)
-    elif bsp[0] in ['B', 'R']: r = (half + 1, r[1])
+    if bsp[0] in ['F', 'L']: return binary_partition(bsp[1:], (r[0], half))
+    elif bsp[0] in ['B', 'R']: return binary_partition(bsp[1:], (half + 1, r[1]))
 
-    return binary_partition(bsp[1:], r)
 
 def from_binary(bsp):
-    """
-    Apparently doing a binary partition as the
-    problem describes is the same as reading
-    the instructions in binary
-    """
+    #Apparently doing a binary partition as the problem describes is the same as reading
+    #the instructions in binary, i think is in someway equivalent to the traversal of a binary tree
 
-    number = []
-    for l in bsp:
-        if l in ['F', 'L']: number.append('0')
-        elif l in ['B', 'R']: number.append('1')
-    return int("".join(number), 2)
+    return int(bsp.replace('F', '0').replace('L', '0').replace('B', '1').replace('R', '1'), 2)
 
 def get_id(row, col): return row * 8 + col