use std::panic::{catch_unwind, AssertUnwindSafe};
 
fn risky_operation(divisor: i32) -> i32 {
    100 / divisor
}
 
fn main() {
    let result = catch_unwind(AssertUnwindSafe(|| {
        risky_operation(0)
    }));
    
    match result {
        Ok(value) => println!("Success: {}", value),
        Err(_) => println!("Operation panicked, recovered gracefully"),
    }
    
    let numbers = vec![1, 2, 3];
    
    println!("Using expect: {}", numbers.get(0).expect("Vector should have first element"));
    println!("Using unwrap_or: {}", numbers.get(5).unwrap_or(&-1));
    
    let maybe_slice = numbers.get(1..5);
    if let Some(slice) = maybe_slice {
        println!("Slice from index 1: {:?}", slice);
    } else {
        println!("Slice out of bounds, handled gracefully");
    }
}