Create main.cpp

main.cpp

@@ -0,0 +1,40 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+void author_list() {
+    // contributor list 
+    string contributor_names[] = { "Manish", "Ayushman" };// add your name here 
+    int cnt = sizeof(contributor_names) / sizeof(contributor_names[0]); 
+
+    cout << "\n\n-:: Authors ::-\n";
+    for (int i = 0; i < cnt; i++) {
+        cout << " ";
+        for (char c : contributor_names[i]) {
+            cout << c;
+        }
+        cout << endl; 
+    }
+}
+
+void secret_message(const char* encoded, int key) {
+    int len = strlen(encoded);
+    char decoded[len + 1]; // initalising char array
+
+    for (int i = 0; i < len; i++) {
+        decoded[i] = encoded[i] ^ key; 
+    }
+    decoded[len] = '\0'; // null termination marks end of string
+
+    printf("Secret Message: %s\n", decoded);
+}
+
+int main() {
+    const char encoded_message[] = { 'K', 'C', 'D', 'C', 'M', 'V', 'N', 'C', 'Q', 'J', '\0' };
+    int key = 42;
+
+    printf("Decoding secret message...\n");
+    secret_message(encoded_message, key);
+    author_list();
+
+    return 0;
+}