[Add] solved solutions

cpp/PERMUT2.cpp

@@ -0,0 +1,41 @@
+#include <iostream>
+
+using namespace std;
+
+bool check(int n)
+{
+    int a[n], i;
+    for (i = 0; i < n; i++)
+    {
+        cin >> a[i];
+    }
+    for (i = 0; i < n; i++)
+    {
+        if (a[a[i] - 1] != i + 1)
+        {
+            return 0;
+        }
+    }
+    return 1;
+}
+
+int main()
+{
+    int n;
+    do
+    {
+        cin >> n;
+        if (n)
+        {
+            if (check(n))
+            {
+                cout << "ambiguous" << endl;
+            }
+            else
+            {
+                cout << "not ambiguous" << endl;
+            }
+        }
+    } while (n);
+    return 0;
+}