73 lines
1.6 KiB
C++
73 lines
1.6 KiB
C++
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#include <algorithm>
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#include <fstream>
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#include <iostream>
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#include <string>
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// 6-7 w: wwhmzwtwwk
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bool Valid1(const std::string &str)
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{
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int min, max;
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char letter;
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std::string password;
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auto dash = str.find('-');
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auto space = str.find(' ');
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auto space_two = str.find(' ', space + 1);
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min = std::atoi(str.substr(0, dash).c_str());
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max = std::atoi(str.substr(dash + 1, space).c_str());
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letter = str.at(space + 1);
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password = str.substr(space_two + 1);
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// std::cout << "min: " << min << std::endl
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// << "max: " << max << std::endl
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// << "letter: " << letter << std::endl
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// << "pass: " << password << std::endl;
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int total = std::count(password.begin(), password.end(), letter);
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return (total >= min && total <= max);
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}
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bool Valid2(const std::string &str)
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{
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int min, max;
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char letter;
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std::string password;
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auto dash = str.find('-');
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auto space = str.find(' ');
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auto space_two = str.find(' ', space + 1);
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min = std::atoi(str.substr(0, dash).c_str());
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max = std::atoi(str.substr(dash + 1, space).c_str());
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letter = str.at(space + 1);
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password = str.substr(space_two + 1);
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bool a = password[min - 1] == letter;
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bool b = password[max - 1] == letter;
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return a != b;
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}
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int main()
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{
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std::ifstream ifs("data");
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if(!ifs.is_open())
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return -1;
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int valid1 = 0;
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int valid2 = 0;
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for(std::string line; std::getline(ifs, line); )
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{
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if(Valid1(line))
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++valid1;
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if(Valid2(line))
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++valid2;
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}
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std::cout << valid1 << " valid1 passwords." << std::endl;
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std::cout << valid2 << " valid2 passwords." << std::endl;
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return 0;
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}
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