Class Solution
java.lang.Object
g2601_2700.s2678_number_of_senior_citizens.Solution
public class Solution
extends java.lang.Object
2678 - Number of Senior Citizens.
Easy
You are given a 0-indexed array of strings details
. Each element of details
provides information about a given passenger compressed into a string of length 15
. The system is such that:
- The first ten characters consist of the phone number of passengers.
- The next character denotes the gender of the person.
- The following two characters are used to indicate the age of the person.
- The last two characters determine the seat allotted to that person.
Return the number of passengers who are strictly more than 60 years old.
Example 1:
Input: details = [“7868190130M7522”,“5303914400F9211”,“9273338290F4010”]
Output: 2
Explanation: The passengers at indices 0, 1, and 2 have ages 75, 92, and 40. Thus, there are 2 people who are over 60 years old.
Example 2:
Input: details = [“1313579440F2036”,“2921522980M5644”]
Output: 0
Explanation: None of the passengers are older than 60.
Constraints:
1 <= details.length <= 100
details[i].length == 15
details[i] consists of digits from '0' to '9'.
details[i][10] is either 'M' or 'F' or 'O'.
- The phone numbers and seat numbers of the passengers are distinct.
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Constructor Summary
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Method Summary
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Constructor Details
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Solution
public Solution()
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Method Details
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countSeniors
public int countSeniors(java.lang.String[] details)
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