Lemonades

Naveen likes to take a rest after doing hard work in School. For this, he goes to a nearby shop which gives him his favourite drink, "Lemonade". With time, lot many shops have opened which serve Lemonade. The price of Lemonade might be different at each of the shops. Each day, Naveen has some amount he would like to spent to drink Lemonade. Assume, on the ${i}^{th}$ day, he can spent $B[i]$ rupe