rust_test/src/main.rs

use std::cmp::max;

struct Solution;
impl Solution {
    pub fn min_operations(queries: Vec<Vec<i32>>) -> i64 {
        let mut ans: i64 = 0;
        let splits = vec![0,1,4,16,64,256,1024,4096,16384,65536,262144,1048576,4194304,16777216,67108864,268435456,1073741824];
        for query in queries {
            let l = query[0];
            let r = query[1];
            let mut local_ans:i64 = 0;
            for i in 1..splits.len() {
                let split = splits[i];
                if split < l {
                    continue;
                }
                let left = max(l, splits[i-1]);
                if split > r {
                    local_ans += (r - left + 1) as i64 * (i-1) as i64;
                    break;
                }
                local_ans += (split - left ) as i64 * (i-1) as i64; 
            }
            ans += local_ans / 2 + local_ans % 2;
        }
        ans
    }
}

fn main() {
    let sl = Solution::min_operations(vec![vec![1,2],vec![2,4]]);
    println!("{:?}", sl);
}