40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
use std::io::stdin;
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fn main() {
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let mut line = String::new();
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let mut distance = 0;
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let mut before_time = 0;
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let mut speed = 0;
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loop {
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line.clear();
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stdin().read_line(&mut line).unwrap();
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if line.trim().is_empty() {
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break;
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}
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let mut iter = line.trim().split(' ');
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let mut time_str = iter.next().unwrap().split(':');
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let (h, m, s) = (
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time_str.next().unwrap().parse::<u64>().unwrap(),
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time_str.next().unwrap().parse::<u64>().unwrap(),
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time_str.next().unwrap().parse::<u64>().unwrap(),
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);
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let time = h * 3600 + m * 60 + s;
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distance = distance + speed * (time - before_time);
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if let Some(spd_str) = iter.next() {
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speed = spd_str.parse::<u64>().unwrap();
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} else {
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println!(
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"{:02}:{:02}:{:02} {:.2} km",
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h,
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m,
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s,
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distance as f64 / 3600f64
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);
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}
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before_time = h * 3600 + m * 60 + s;
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}
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}
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