Solutions to day 1 2017.

2017/day-01/solution.cpp

@@ -0,0 +1,29 @@
+#include <cctype>
+#include <iostream>
+#include <string>
+
+using namespace std;
+
+void get_sum(const string& data, const unsigned int offset)
+{
+	int sum = 0;
+	const auto total = data.size();
+	for (auto i = 0u; i < total; ++i) {
+		if (data[i] == data[(i + offset) % total]) {
+			sum += data[i] - '0';
+		}
+	}
+
+	cout << "Sum: " << sum << endl;
+}
+
+int main()
+{
+	string data;
+	cin >> data;
+
+	get_sum(data, 1);
+	get_sum(data, data.size() / 2);
+
+	return 0;
+}