feat: 1408번 문제 해결

Author: isho-0

src/problem_includes.h

@@ -8,6 +8,7 @@
 #include "problems/problem_1001.h"
 #include "problems/problem_10950.h"
 #include "problems/problem_10952.h"
+#include "problems/problem_1408.h"
 #include "problems/problem_1977.h"
 #include "problems/problem_2438.h"
 #include "problems/problem_2439.h"

src/problem_manager.cc

@@ -7,6 +7,7 @@ ProblemManager::ProblemManager() {
   // 문제 등록
   problems_[1000] = solve_problem_1000;
   problems_[1001] = solve_problem_1001;
+  problems_[1408] = solve_problem_1408;
   problems_[1977] = solve_problem_1977;
   problems_[2438] = solve_problem_2438;
   problems_[2439] = solve_problem_2439;

src/problems/problem_1408.cc

@@ -0,0 +1,66 @@
+#include "problem_1408.h"
+#include <iostream>
+#include <iomanip>
+#include <sstream>
+
+CTU::CTU() : hour(0), minute(0), second(0) {}
+
+void CTU::input_time() {
+  std::string t;
+  std::cin >> t;
+  hour   = (t[0] - '0') * 10 + (t[1] - '0');
+  minute = (t[3] - '0') * 10 + (t[4] - '0');
+  second = (t[6] - '0') * 10 + (t[7] - '0');
+}
+
+int CTU::get_hour() const { return hour; }
+int CTU::get_minute() const { return minute; }
+int CTU::get_second() const { return second; }
+
+std::string CTU::str() const {
+  std::ostringstream oss;
+  oss << std::setfill('0')
+      << std::setw(2) << hour << ":"
+      << std::setw(2) << minute << ":"
+      << std::setw(2) << second;
+  return oss.str();
+}
+
+void normalize_time(int &hour, int &minute, int &second) {
+  if (second < 0) {
+    second += 60;
+    minute -= 1;
+  }
+  if (minute < 0) {
+    minute += 60;
+    hour -= 1;
+  }
+  if (hour < 0) {
+    hour += 24;
+  }
+}
+
+void solve_problem_1408() {
+  std::cout << "=== 1408번 24 문제 해결 ===" << std::endl;
+
+  std::cout << "시간을 입력하세요 (예: 13:52:30 14:00:00) : ";
+  CTU user1, user2;
+  user1.input_time();
+  user2.input_time();
+  std::cout << "입력 :  시간1 = " << user1.str()
+          << ", 시간2 = " << user2.str() << "\n";
+
+  int h = user2.get_hour() - user1.get_hour();
+  int m = user2.get_minute() - user1.get_minute();
+  int s = user2.get_second() - user1.get_second();
+
+  normalize_time(h, m, s);
+
+  std::cout << "출력 : ";
+  std::cout << std::setfill('0')
+      << std::setw(2) << h << ":"
+      << std::setw(2) << m << ":"
+      << std::setw(2) << s << std::endl;
+
+  std::cout << "================================" << std::endl;
+}

src/problems/problem_1408.h

@@ -0,0 +1,24 @@
+#ifndef PROBLEM_1408_H
+#define PROBLEM_1408_H
+
+#include <string>
+
+class CTU {
+private:
+  int hour;
+  int minute;
+  int second;
+
+public:
+  CTU();
+  void input_time();
+  int get_hour() const;
+  int get_minute() const;
+  int get_second() const;
+  std::string str() const;
+};
+
+void normalize_time(int &hour, int &minute, int &second);
+void solve_problem_1408();
+
+#endif