Short Problem Definition:
You are given time in AM/PM format. Convert this into a 24 hour format.
Link
Complexity:
time complexity is O(?)
space complexity is O(?)
Execution:
Transforming date formats without the use of the proper libraries is a disaster waiting to happen. Date formats are ever changing and a waste of engineering effort. Just use whatever package comes with your language…
Solution:
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#!/usr/bin/pyfrom datetime import datetimedef convertToEuTime(us_time): return datetime.strptime(us_time, '%I:%M:%S%p').strftime('%H:%M:%S')if __name__ == '__main__': us_time = raw_input() print convertToEuTime(us_time) |
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use std::io;fn main() { let mut line = String::new(); io::stdin().read_line(&mut line).ok().expect("Failed to read line"); let a: String = line.chars().skip(0).take(2).collect(); let b: String = line.chars().skip(3).take(2).collect(); let c: String = line.chars().skip(6).take(2).collect(); let d: String = line.chars().skip(8).take(2).collect(); let a = a.trim().parse::<u32>().unwrap(); let b = b.trim().parse::<u32>().unwrap(); let c = c.trim().parse::<u32>().unwrap(); let a = (a % 12) + match d.as_ref() { "AM" => 0, "PM" => 12, _ => panic!("Unknown date type"), }; println!("{:02}:{:02}:{:02}", a, b, c);} |
