PYTHON- Credit card numbers follow a standard system. For example, Visa, MasterCard, and Discover Card all have 16 digits, and the first digit serves to indicate the card brand. All Visa cards start with a 4;
MasterCard cards always starts with a 5; and Discover cards start with a 6. Write out a program that
prompts for a credit card number and emits the name of the brand. If the card brand cannot be
determined, the program should output "Unknown Card"

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

What is the worst-case complexity of the maxrepeats function? assume that the longest string in the names array is at most 25 characters wide (i.e., string comparison can be treated as o( class namecounter { private: int* counts; int nc; string* names; int nn; public: namecounter (int ncounts, int nnames); int maxrepeats() const; }; int namecounter: : maxrepeats () { int maxcount = 0; for (int i = 0; i < nc; ++i) { int count = 1; for (int j = i+1; j < nc; ++j) { if (names[i] == names[j]) ++count; } maxcount = max(count, maxcount); } return maxcount; }

What did creator markus “notch" persson initially call his game