fn new() -> Self {
        let mut follows = vec![HashSet::new(); 501];
        for i in 0..follows.len() {
            follows[i].insert(i as i32);
        }
        Self {
            follows: follows,
            tweets: vec![],
        }
    }
/** Initialize your data structure here. */
Initialize your data structure here.
Initialize your data structure here .
fn new() -> Self {
        let mut follows = vec![HashSet::new(); 501];
        for i in 0..follows.len() {
            follows[i].insert(i as i32);
        }
        Self {
            follows: follows,
            tweets: vec![],
        }
    }
fn new ( ) -> Self { let mut follows = vec ! [ HashSet new ( ) 501 ] ; for i in 0 .. follows . len ( ) { follows [ i ] . insert ( i as i32 ) ; } Self { follows : follows , tweets : vec ! [ ] , } }
Initialize your data structure here.
Initialize your data structure here .