1 files changed, 43 insertions, 0 deletions
diff --git a/week03/exercise08.cpp b/week03/exercise08.cpp
new file mode 100644
index 0000000..736ed31
--- /dev/null
+++ b/week03/exercise08.cpp
@@ -0,0 +1,43 @@
+#include <iostream>
+
+int main() {
+	unsigned int time = 0;
+	char input;
+	unsigned int mode = 0;
+	bool twelveHour = false;
+	while (true) {
+		std::cin >> input;
+		switch (input) {
+			case 'c':
+				if (mode == 0) {
+					unsigned newHour;
+					std::cin >> newHour;
+					time = 60 * newHour + time % 60;
+				}
+				else if (mode == 1) {
+					unsigned newMinutes;
+					std::cin >> newMinutes;
+					time = (time - time % 60) + newMinutes;
+				}
+				mode = (mode + 1) % 3;
+				twelveHour = !twelveHour;
+			case 'f':
+				twelveHour = !twelveHour;
+				if (mode == 0) {
+					time -= 1;
+				}
+			case 't':
+				if (mode == 0) {
+					time = (time + 1) % 1440; // 60 minutes * 24 hours
+				}
+				if (twelveHour) {
+					bool pm = (time / 60) > 12;
+					std::cout << (time / 60) - 12 * pm << ":" << (time % 60) << " " << (pm ? "PM" : "AM") << std::endl;
+				}
+				else {
+					std::cout << (time / 60) << ":" << (time % 60) << std::endl;
+				}
+				break;
+		}
+	}
+}