Question

How to remove a pair of the same adjacent characters from a string in Rust

Answer 1

fn remove_adjacent_pair(s: &str) -> String {
    let mut s = s.to_string();
    let mut i = 0;

    while i < s.len() - 1 {
        if s.as_bytes()[i] == s.as_bytes()[i + 1] {
            s.remove(i);
            s.remove(i);
            if i != 0 {
                i -= 1;
            }
        } else {
            i += 1;
        }
    }
    
    s
}

fn main() {
    let s = "aabcccdeeffffgac";
    
    let s = remove_adjacent_pair(s);
    
    println!("{}", s);
}


 
 
/*
run:

bcdgac

*/

 

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