Atrium Roster Sorted Signal

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The atrium stage manager records rehearsal slots as timestamps in HH:MM format. Before the engineer locks the final mix, they need to know if the roster is perfectly ordered from earliest to latest. Your mission in Atrium Roster Sorted Signal is to return a simple true if the list never steps backward in time, or false otherwise.

The "secret sauce" is a Chronological Scan. Since timestamps are recorded in 24-hour format, you can compare them string-by-string. You scan from front to back, ensuring each time is greater than or equal to the one before. Twin slots for adjacent bookings are allowed, and an empty roster is "trivially sorted." This decisive verdict is shared over the comms, telling the team whether a re-sequencing is needed or if the sound check can proceed calmly. It’s a vital skill for anyone building scheduling or event-management software efficiently!

If sorting is part of the strategy, do it intentionally as a preprocessing step to simplify downstream logic such as merging, ordering, or comparison. After sorting, keep output semantics precise: preserve expected structure, avoid dropping valid entries, and ensure tied cases still follow deterministic order rules.

Examples

Example 1

Input

times = []

Output

true

Explanation

No scheduled rehearsals means the list is trivially sorted.

Example 2

Input

times = ["14:10","14:45","15:00","15:00"]

Output

true

Explanation

Each call is later than or equal to the previous, so the roster is in order.

Example 3

Input

times = ["09:30","09:15","09:45"]

Output

false

Explanation

The second slot jumps backward, signalling the board needs adjustment.

Algorithm Flow

Recommendation Algorithm Flow for Atrium Roster Sorted Signal - Budibadu

Best Answers

java

class Solution {
    public boolean atrium_roster_sorted_signal(String[] times) {
        for (int i = 1; i < times.length; i++) {
            if (times[i].compareTo(times[i-1]) < 0) return false;
        }
        return true;
    }
}

javascript

function atrium_roster_sorted_signal(times) {
    for (let i = 1; i < times.length; i++) {
        if (times[i] < times[i-1]) return false;
    }
    return true;
}

php

<?php
function atrium_roster_sorted_signal($times) {
    for ($i = 1; $i < count($times); $i++) {
        if ($times[$i] < $times[$i-1]) return false;
    }
    return true;
}
?>

python

from typing import List

def atrium_roster_sorted_signal(times: List[str]) -> bool:
    for i in range(1, len(times)):
        if times[i] < times[i-1]:
            return False
    return True

rust

pub fn atrium_roster_sorted_signal(times: Vec<String>) -> bool {
    for i in 1..times.len() {
        if times[i] < times[i-1] {
            return false;
        }
    }
    true
}

typescript

function atrium_roster_sorted_signal(times: string[]): boolean {
    for (let i = 1; i < times.length; i++) {
        if (times[i] < times[i-1]) return false;
    }
    return true;
}

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Atrium Roster Sorted Signal

Examples

Algorithm Flow

Best Answers

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