https://atcoder.jp/contests/abc246/tasks/abc246_b最初からf64にすれば楽ですね。 // Get Closer #![allow(non_snake_case)] use itertools::Itertools; use std::collections::HashSet; fn read<T: std::str::FromStr>() -> T { let mut line = String::new(); std::io::stdin()</t:>…