feat(Week07): Add solutions

1 files changed, 30 insertions, 0 deletions

diff --git a/Week07/Exercise13.cpp b/Week07/Exercise13.cpp
new file mode 100644
index 0000000..95115f9
--- /dev/null
+++ b/Week07/Exercise13.cpp
@@ -0,0 +1,30 @@
+#include <iostream>
+
+bool isDigit(char x) {
+	return '0' <= x && x <= '9';
+}
+
+bool isLetter(char x) {
+	return ('a' <= x && x <= 'z') || ('A' <= x && x <= 'Z');
+}
+
+bool followsPattern(char letters[4]) {
+	return isLetter(letters[0]) && isDigit(letters[1]) && isLetter(letters[2]) && isDigit(letters[3]);
+}
+
+int main() {
+	const unsigned int SIZE = 12;
+	char input[SIZE];
+	for (unsigned int i = 0; i < SIZE; i++)
+		std::cin >> input[i];
+
+	for (unsigned int i = 0; i < SIZE; i += 4) {
+		if (!followsPattern(input)) {
+			std::cout << "Does not follow pattern" << std::endl;
+			return 0;
+		}
+	}
+
+	std::cout << "Follows pattern" << std::endl;
+	return 0;
+}