How do you find duplicate characters in a given string in Rust
Rust
x
18
fn main() { let mut s = String::new(); println!("Enter a string: "); std::io::stdin().read_line(&mut s).expect("Failed to read line"); let mut chars = HashMap::new(); for c in s.chars() { if c == ' ' { continue; } let count = chars.entry(c).or_insert(0); *count += 1; } for (c, count) in &chars { if *count > 1 { println!("{}: {}", c, count); } }}🤖 Code Explanation
The code creates a mutable string, reads in a line from standard input, and stores the characters of that string in a hashmap. The hashmap keeps track of how many times each character appears in the string. Finally, the code prints out any characters that appear more than once in the string.
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