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Solve 2024 day 5 part 2

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SebastianStork 2024-12-18 22:14:00 +01:00
parent ca9f0d37ae
commit 86f28a8c38
1 changed files with 8 additions and 7 deletions
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15
2024/day-05/main.cpp
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@ -36,13 +36,6 @@ vector<vector<int>> readManuals()
return manuals; return manuals;
} }
void sortRules(vector<pair<int, int>> &rules)
{
sort(rules.begin(), rules.end(), [](const pair<int, int> &a, const pair<int, int> &b) {
return a.first < b.first;
});
}
bool isCorrectPageOrdering(const int firstPage, bool isCorrectPageOrdering(const int firstPage,
const int secondPage, const int secondPage,
const vector<pair<int, int>> &rules) const vector<pair<int, int>> &rules)
@ -82,15 +75,23 @@ int main()
sort(rules.begin(), rules.end()); sort(rules.begin(), rules.end());
int sumOfCorrectMiddlePages = 0; int sumOfCorrectMiddlePages = 0;
int sumOfCorrectedMiddlePages = 0;
for (const vector<int> &pages : manuals) { for (const vector<int> &pages : manuals) {
const vector<int> properlyOrderedPages = getProperlyOrderedPages(pages, rules); const vector<int> properlyOrderedPages = getProperlyOrderedPages(pages, rules);
if (pages == properlyOrderedPages) { if (pages == properlyOrderedPages) {
sumOfCorrectMiddlePages += getMiddlePageNumber(pages); sumOfCorrectMiddlePages += getMiddlePageNumber(pages);
} else {
sumOfCorrectedMiddlePages += getMiddlePageNumber(properlyOrderedPages);
} }
} }
// Part one // Part one
cout << "Sum of the middle page numbers of all correctly ordered manuals: " cout << "Sum of the middle page numbers of all correctly ordered manuals: "
<< sumOfCorrectMiddlePages << endl; << sumOfCorrectMiddlePages << endl;
// Part two
cout
<< "Sum of the middle page numbers of all incorrectly ordered manuals after ordering them: "
<< sumOfCorrectedMiddlePages << endl;
} }