Add 2017 Day 23 puzzles

2017/puzzle-23-02.cc

@@ -0,0 +1,38 @@
+#include <iostream>
+#include <map>
+#include <regex>
+#include <string>
+#include <variant>
+#include <vector>
+
+using Int = long;
+
+auto main() -> int
+{
+  Int a{1};
+  Int b{0};
+  Int c{0};
+  Int d{0};
+  Int e{0};
+  Int f{0};
+  Int g{0};
+  Int h{0};
+
+  b = 107'900;
+  c = b + 17'000;
+  do {
+    d = 2;
+    do {
+      e = b / d;
+      if (d * e == b) {
+        ++h;
+        break;
+      }
+      ++d;
+    } while (d != b);
+    b += 17;
+  } while (b <= c);
+
+  std::cout << "h = " << h << '\n';
+  return 0;
+}