fn main() {
    let array = [239, 12, 111, 42, 372, 59];
    
    // min
    let min = array.iter().min().unwrap();
    println!("min:{}", min);
    
    // max                      
    let max = array.iter().max().unwrap();
    println!("max:{}", max);
                                
    // mean                     
    let sum = array.iter().sum::<i32>() as f32;
    let length = array.len() as f32;
    let mean = sum / length;
    println!("mean:{}", mean);
} 
