56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
#include <cassert>
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#include <iostream>
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#include <string>
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#include <vector>
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struct PasswordChecker
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{
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PasswordChecker(std::string const& s)
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{
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std::size_t pos = 0;
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pos1_ = std::stoul(s, &pos, 10);
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assert(s[pos] == '-');
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std::string s2 = s.substr(pos + 1);
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pos2_ = std::stoul(s2, &pos, 10);
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assert(s2[pos] == ' ');
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c_ = s2[pos + 1];
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assert(s2[pos + 2] == ':');
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assert(s2[pos + 3] == ' ');
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password_ = s2.substr(pos + 4);
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}
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bool is_valid() const
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{
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std::string::size_type count = 0;
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if (password_.at(pos1_ - 1) == c_) {
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++count;
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}
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if (password_.at(pos2_ - 1) == c_) {
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++count;
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}
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return count == 1;
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}
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std::string::size_type pos1_; // 1 based
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std::string::size_type pos2_; // 1 based
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std::string::value_type c_;
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std::string password_;
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};
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int main(int argc, char** argv)
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{
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unsigned count = 0;
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for (std::string line; std::getline(std::cin, line);) {
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PasswordChecker check(line);
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if (check.is_valid()) {
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++count;
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}
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else {
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std::cout << "IN";
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}
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std::cout << "VALID: " << line << "\n";
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}
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std::cout << "Number of valid: " << count << "\n";
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return 0;
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} |