[Init] Solved solutions

cpp/228A.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    unsigned int a, b, c, d;
+    cin >> a >> b >> c >> d;
+    unsigned count = 0;
+    if (a == b || a == c || a == d)
+        count++;
+    if (b == c || b == d)
+        count++;
+    if (c == d)
+        count++;
+    cout << count;
+    return 0;
+}