Bianca is preparing special dishes for her daughter’s birthday. it takes her x minutes to prepare the first dish, and each subsequent dish takes y minutes longer than the previous dish. she has t minutes to prepare the dishes. for example, if the first dish takes x = 10 minutes and y = 5 minutes, then the second dish will take 15 minutes, the third dish will take 20 minutes, and so on. if she has 80 minutes to prepare the dishes, then she can complete four dishes within that time limit because 10 + 15 + 20 + 25 = 70. note that she does not have enough time to complete a fifth dish as she only has 10 minutes left and the next dish would require 30 minutes. write a program that accepts the values x, y, and t, and outputs the number of dishes that bianca can complete. input format is: x y t testcase: (input / output) 10 10 60 3