52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
#include <iostream>
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#include <vector>
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#include <fstream>
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#include <map>
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using namespace std;
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// Advent of Code 2023, Day 1
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int main() {
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ifstream input("input.txt");
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map<string, string> numbers = {
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{"1", "one"}, {"2", "two"}, {"3", "three"},
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{"4", "four"}, {"5", "five"}, {"6", "six"},
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{"7", "seven"}, {"8", "eight"}, {"9", "nine"}
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};
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int calibrationValue = 0;
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for (string line; getline(input, line);) {
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string current_str;
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for (char current : line) {
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current_str.push_back(current);
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for (auto item : numbers) {
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size_t index = current_str.find(item.second);
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while(index != std::string::npos){
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current_str.replace(index, item.second.length() - 1, item.first);
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index = current_str.find(item.second);
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}
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}
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}
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line = current_str;
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vector<char> digits;
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for (char current: line) {
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if (isdigit(current)) digits.push_back(current);
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}
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string calibrationLine;
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calibrationLine.push_back(digits[0]);
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calibrationLine.push_back(digits.size() > 1 ? digits[digits.size() - 1] : digits[0]);
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cout << "Calibration Value (" << line << "): " << calibrationLine << "\n";
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calibrationValue += stoi(calibrationLine);
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}
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cout << "Calibration Value Sum: " << calibrationValue;
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return 0;
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} |