add c++ solution of #3060

.gitignore

@@ -250,3 +250,4 @@ Module.symvers
 Mkfile.old
 dkms.conf
 
+a.out

3060/solutie.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+
+using namespace std;
+
+int main() {
+	int k=0, p=0, n=0, i=0;
+	cin >> k;
+	cin >> p;
+	for (i = 9999; i >= 0; i--) {
+		bool prime = true;
+		for (int j = 2; j < i; j++) {
+			if (i % j == 0) {
+				prime = false;
+			}
+		}
+		bool containsForbiddenNumber = false;
+		if (prime) {
+			int c = i;
+			while (c > 0) {
+				if (c % 10 == k || c % 10 == p) {
+					containsForbiddenNumber = true;
+					break;
+				}
+				c = c / 10;
+			}
+		}
+		if (prime && !containsForbiddenNumber) {
+			n = i;
+			break;
+		}
+	}
+	cout << n;
+	return 0;
+}