จัดรูปแบบใบแจ้งหนี้

อินพุต:
std::vector<long long> cents = {250, 375};
std::vector<std::string> names = {"Tea", "Cake"};
std::vector<long long> quantities = {2, 1};

ผลลัพธ์ที่คาดหวัง:
std::vector<std::string> expected = {"Tea x2 = 5.00", "Cake x1 = 3.75", "Total = 8.75"};

อินพุต:
long[] cents = new long[] {250, 375};
string[] names = new string[] {"Tea", "Cake"};
long[] quantities = new long[] {2, 1};

ผลลัพธ์ที่คาดหวัง:
string[] expected = new string[] {"Tea x2 = 5.00", "Cake x1 = 3.75", "Total = 8.75"};

อินพุต:
std::vector<long long> cents = {5};
std::vector<std::string> names = {"Gum"};
std::vector<long long> quantities = {3};

ผลลัพธ์ที่คาดหวัง:
std::vector<std::string> expected = {"Gum x3 = 0.15", "Total = 0.15"};

อินพุต:
long[] cents = new long[] {5};
string[] names = new string[] {"Gum"};
long[] quantities = new long[] {3};

ผลลัพธ์ที่คาดหวัง:
string[] expected = new string[] {"Gum x3 = 0.15", "Total = 0.15"};