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Welcome to the Selection Sort in Rust page! Here, you'll find the source code for this program as well as a description of how the program works.
use std::env::args;
use std::process::exit;
use std::str::FromStr;
fn usage() -> ! {
println!("Usage: please provide a list of at least two integers to sort in the format \"1, 2, 3, 4, 5\"");
exit(0);
}
fn parse_int<T: FromStr>(s: &str) -> Result<T, <T as FromStr>::Err> {
s.trim().parse::<T>()
}
fn parse_int_list<T: FromStr>(s: &str) -> Result<Vec<T>, <T as FromStr>::Err> {
s.split(',')
.map(parse_int)
.collect::<Result<Vec<T>, <T as FromStr>::Err>>()
}
fn selection_sort<T: PartialOrd>(arr: &mut Vec<T>) {
// Source: https://en.wikipedia.org/wiki/Selection_sort#Implementations
for i in 0..(arr.len() - 1) {
let mut min_pos = i;
for j in (i + 1)..arr.len() {
if arr[j] < arr[min_pos] {
min_pos = j;
}
}
if min_pos != i {
arr.swap(min_pos, i);
}
}
}
fn main() {
let mut args = args().skip(1);
// Convert 1st command-line argument to list of integers
let mut arr: Vec<i32> = args
.next()
.and_then(|s| parse_int_list(&s).ok())
.unwrap_or_else(|| usage());
// Exit if list too small
if arr.len() < 2 {
usage();
}
selection_sort::<i32>(&mut arr);
println!("{arr:?}");
}
Selection Sort in Rust was written by:
If you see anything you'd like to change or update, please consider contributing.
Note: The solution shown above is the current solution in the Sample Programs repository as of May 08 2023 19:53:07. The solution was first committed on Apr 06 2023 09:46:06. As a result, documentation below may be outdated.
No 'How to Implement the Solution' section available. Please consider contributing.
No 'How to Run the Solution' section available. Please consider contributing.