damienstanton · October 4, 2019 22:07
diff --git a/is_unique.rs b/is_unique.rs
 use std::collections::HashMap;

 pub fn str_is_unique(s: &str) -> bool {
    let mut map: HashMap<char, i32> = HashMap::new();
    for c in s.chars() {
        *map.entry(c).or_insert(0) += 1;
    }
    !map.iter().any(|(_, &v)| v > 1)
 }
	use std::collections::HashMap;

	pub fn str_is_unique(s: &str) -> bool {
	let mut map: HashMap<char, i32> = HashMap::new();
	for c in s.chars() {
	*map.entry(c).or_insert(0) += 1;
	}
	!map.iter().any(\|(_, &v)\| v > 1)
	}