Apply Discount to Prices solution leetcode
A
sentence is a string of single-space separated words where each word can contain digits, lowercase letters, and the dollar sign
'$'. A word represents a
price if it is a non-negative real number preceded by a dollar sign. Apply Discount to Prices solution leetcode
- For example,
"$100", "$23", and "$6.75" represent prices while "100", "$", and "2$3" do not.
You are given a string
sentence representing a sentence and an integer
discount. For each word representing a price, apply a discount of
discount% on the price and
update the word in the sentence. All updated prices should be represented with
exactly two decimal places.
Return
a string representing the modified sentence.
Example 1: Apply Discount to Prices solution leetcode
Input: sentence = "there are $1 $2 and 5$ candies in the shop", discount = 50
Output: "there are $0.50 $1.00 and 5$ candies in the shop"
Explanation:
The words which represent prices are "$1" and "$2".
- A 50% discount on "$1" yields "$0.50", so "$1" is replaced by "$0.50".
- A 50% discount on "$2" yields "$1". Since we need to have exactly 2 decimal places after a price, we replace "$2" with "$1.00".
Example 2:
Apply Discount to Prices solution leetcode
Apply Discount to Prices solution leetcode
Input: sentence = "1 2 $3 4 $5 $6 7 8$ $9 $10$", discount = 100
Output: "1 2 $0.00 4 $0.00 $0.00 7 8$ $0.00 $10$"
Explanation:
Applying a 100% discount on any price will result in 0.
The words representing prices are "$3", "$5", "$6", and "$9".
Each of them is replaced by "$0.00".
Constraints:
Apply Discount to Prices solution leetcode
1 <= sentence.length <= 105sentence consists of lowercase English letters, digits, ' ', and '$'.sentence does not have leading or trailing spaces.- All words in
sentence are separated by a single space.
- All prices will be positive integers without leading zeros.
- All prices will have at most
10 digits.
0 <= discount <= 100
SOLUTION
