Pcornat/AdventOfCode2023
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Finally working for one case.

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This commit is contained in:
Pcornat 2023-12-06 22:29:07 +01:00
commit d7bf213e7b
Signed by: Pcornat
GPG key ID: E0326CC678A00BDD
3 changed files with 65 additions and 6 deletions
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62
pb_1/problem_1.cpp
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@ -4,6 +4,10 @@
#include "problem_1.hpp"
#include <array>
#include <string>
#include <string_view>
#include <optional>
#include <unordered_set>
#include <vector>
#include <fstream>
#include <iostream>
@ -26,6 +30,18 @@ namespace pb1 {
"nine"sv,
};
const std::unordered_set numbersSet{
"one"sv,
"two"sv,
"three"sv,
"four"sv,
"five"sv,
"six"sv,
"seven"sv,
"eight"sv,
"nine"sv,
};
std::optional<std::ifstream> read_file(const fs::path &problemFile) noexcept {
std::ifstream file(problemFile);
if (!file.is_open()) {
@ -76,10 +92,52 @@ namespace pb1 {
}
void part2(const std::string_view &toSearch, std::vector<std::string> &splittedLine, std::size_t &result) noexcept {
std::string line_with_numbers;
std::string line_with_numbers, word;
line_with_numbers.reserve(toSearch.size());
word.reserve(sizeof("seven") - 1);
for (int i = 0; i < toSearch.size(); ++i) {
const int second_letter = i + 1, third = i + 2, fourth = i + 3, fifth = i + 4, sixth = i + 5;
switch (toSearch[i]) {
case 'o': {
if (second_letter >= toSearch.size() or third >= toSearch.size()) {
line_with_numbers.append(toSearch.substr(i));
continue;
}
word.append(toSearch.substr(i, digitLetters[0].size()));
if (!numbersSet.contains(word)) {
const auto pos = word.find_first_of(digits);
if (pos != std::string::npos) {
line_with_numbers.push_back(word[pos]);
}
if (word[1] == 'n') {
++i;
}
} else {
line_with_numbers.push_back('1');
++i;
}
word.clear();
}
break;
case 't':
break;
case 'f':
break;
case 's':
break;
case 'e':
break;
case 'n':
break;
default:
if ((toSearch[i] - '0') < 10) {
line_with_numbers.push_back(toSearch[i]);
}
continue;
}
}
if (!line_with_numbers.empty()) {
result += (line_with_numbers.front() - '0') * 10 + (line_with_numbers.back() - '0');
}
}