Maximum difference between adjacent elements of list: Difference between revisions

=={{header|Rust}}==

<syntaxhighlight lang="rust">use std::io ;

use itertools::Itertools ;

fn main() {

println!("Enter some real numbers, separated by blanks!");

let mut inline : String = String::new( ) ;

io::stdin( ).read_line( &mut inline ).unwrap( ) ;

let entered_line : &str = &*inline ;

let numbers : Vec<f32> = entered_line.split_whitespace( ).map( | s |

s.trim( ). parse::<f32>( ).unwrap( ) ).collect( ) ;

let mut pairs : Vec<(&f32, &f32)> = numbers.iter( ).tuple_windows( ).collect( ) ;

let num_slice = &mut pairs[..] ;

let len = num_slice.len( ) ;

num_slice.sort_by( | a, b| (a.0 - a.1).abs( ).partial_cmp(&( &*b.0 -&*b.1).abs( ))

.unwrap( )) ;

let maximumpair = &num_slice[len - 1 .. len] ;

let maxi = maximumpair.to_vec( ) ;

let maximum : f32 = (maxi[0].0- maxi[0].1).abs( ) ;

let maxima : Vec<&(&f32, &f32)> = num_slice.iter( ).filter( |&p |

(p.0 - p.1).abs( ) == maximum ).collect( ) ;

maxima.iter( ).for_each( | p | println!("{},{} ==> {}" ,

p.0 , p.1 , maximum)) ;

}</syntaxhighlight>

{{out}}

<pre>

1,8 ==> 7

2,9 ==> 7

10,3 ==> 7

</pre>