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Day 5: Part 2

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This commit is contained in:
Fawkes100 2024-12-11 19:47:47 +01:00
parent d7686a2bda
commit dcae65ce86
1 changed files with 43 additions and 2 deletions
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45
Aufgabe 5/main.cpp
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@ -176,6 +176,42 @@ std::vector<Update> determineCorrectUpdates(std::vector<Update>& updates, std::v
return validUpdates;
}
std::vector<Update> determineIncorrectUpdates(std::vector<Update>& updates, std::vector<Rule>& rules) {
std::vector<Update> validUpdates;
for(const Update& update : updates) {
if(!isUpdateCorrect(update, rules)) {
validUpdates.push_back(update);
}
}
return validUpdates;
}
Update correctUpdate(const Update& update, std::vector<Rule>& rules) {
Update correctedUpdate = update;
for(int i=0; i<correctedUpdate.pages.size(); i++) {
for(int j=0; j<i; j++) {
if(!isBefore(rules, correctedUpdate.pages[j], correctedUpdate.pages[i])) {
std::swap(correctedUpdate.pages[j], correctedUpdate.pages[i]);
}
}
for(int j=i+1; j<correctedUpdate.pages.size(); j++) {
if(!isAfter(rules, correctedUpdate.pages[j], correctedUpdate.pages[i])) {
std::swap(correctedUpdate.pages[j], correctedUpdate.pages[i]);
}
}
}
return correctedUpdate;
}
std::vector<Update> correctUpdates(std::vector<Update>& updates, std::vector<Rule>& rules) {
std::vector<Update> correctedUpdates;
for(const Update& update : updates) {
correctedUpdates.push_back(correctUpdate(update, rules));
}
return correctedUpdates;
}
int calcMiddleSum(std::vector<Update>& updates) {
int sum = 0;
for(const auto& update: updates) {
@ -188,8 +224,13 @@ int main() {
std::vector<std::string> input = readTextFromFile("../input.txt");
std::vector<Rule> rules = parseRules(input);
std::vector<Update> updates = parseUpdates(input);
std::vector<Update> correctUpdates = determineCorrectUpdates(updates, rules);
int result = calcMiddleSum(correctUpdates);
std::vector<Update> validUpdates = determineCorrectUpdates(updates, rules);
int result = calcMiddleSum(validUpdates);
std::cout << "The middle sum of the correct Updates is: " << result << std::endl;
std::vector<Update> incorrectUpdates = determineIncorrectUpdates(updates, rules);
std::vector<Update> correctedUpdates = correctUpdates(incorrectUpdates, rules);
int result2 = calcMiddleSum(correctedUpdates);
std::cout << "The middle sum of the corrected Updates is: " << result2 << std::endl;
return 0;
}