题解 | #取近似值#
取近似值
https://www.nowcoder.com/practice/3ab09737afb645cc82c35d56a5ce802a
use std::io::{self, *};
fn main() {
let mut s = String::new();
std::io::stdin().read_line(&mut s).unwrap();
let mut n = s.trim().parse::<f64>().unwrap();
if n.fract() >= 0.5 {
n = n.ceil();
} else {
n = n.floor();
}
print!("{}", n as i32);
}
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