有点好奇，Java算得快的原因是Java带JIT而Rust只能跑debug吗？

如果想让Rust（在Leetcode/默认的debug编译模式下）获得Java的性能，又应该如何优化呢？

    pub fn consume(x:String)->String{x}//尝试consume掉s以减少内存占用
    pub fn can_make_pali_queries(s: String, queries: Vec<Vec<i32>>) -> Vec<bool> {
        /*let vec:Vec<i32>=("a".to_string()+&Self::consume(s)).bytes().scan(1_i32,|s,x|{*s^=1<<(x-b'a');Some(*s)}).collect();
        queries.into_iter().map(|x|(vec[x[1] as usize+1]^vec[x[0] as usize]).count_ones()>>1<=x[2] as u32).collect()*///这是最开始我写出来的代码
        //test fastest java//这是仿照最快的Java写出来的代码
        let mut result = Vec::with_capacity(queries.len());
        let mut cur = 0_i32;
        let mut states = Vec::with_capacity(1+s.len());
        states.push(0);
        for i in s.bytes(){
            cur ^= (1 << (i - b'a'));
            states.push(cur);
        }
        for i in queries{
            result.push((states[i[0] as usize] ^ states[i[1]as usize+1]).count_ones()>>1<=i[2]as u32);
        }
        result
    }