CHALLENGE ACTIVITY 4.3.2: Bidding example Write an expression that continues to bid until the user enters 'n 1 #include 2 #include // Enables use of rand() 3 using namespace std; 4 5 int mainO 6 char keepGoing; int nextBid; rand(5) nextBid = 0; 10 keepGoing 'y'; 12 13while (/* Your solution goes here 14 15 16 17 18 19 cout > keepGoing