Решение на упр.03 задача 1 от Димитър Колев

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Към профила на Димитър Колев

Код

fn rainbow_replace(text: &str, word: &str, palette: &[char]) -> String {

let matches: Vec<usize> = text.match_indices(word).map(|(i, _)| i).collect();

let new_word_len: usize = (0..word.chars().count())

.map(|i| palette[i % palette.len()].len_utf8())

.sum();

let mut result =

String::with_capacity(text.len() + matches.len() * (new_word_len - word.len()));

let mut last_pos = 0;

for match_pos in matches {

result.push_str(&text[last_pos..match_pos]);

for i in 0..word.chars().count() {

result.push(palette[i % palette.len()]);

}

last_pos = match_pos + word.len();

}

result.push_str(&text[last_pos..]);

result

}

Лог от изпълнението

Updating crates.io index
     Locking 17 packages to latest compatible versions
 Downloading crates ...
  Downloaded unicode-ident v1.0.22
   Compiling proc-macro2 v1.0.103
   Compiling quote v1.0.41
   Compiling unicode-ident v1.0.22
   Compiling futures-sink v0.3.31
   Compiling futures-core v0.3.31
   Compiling futures-channel v0.3.31
   Compiling slab v0.4.11
   Compiling syn v2.0.108
   Compiling futures-io v0.3.31
   Compiling memchr v2.7.6
   Compiling pin-project-lite v0.2.16
   Compiling pin-utils v0.1.0
   Compiling futures-task v0.3.31
   Compiling solution v0.1.0 (/tmp/d20251030-1757769-axyqdj/solution)
warning: function `rainbow_replace` is never used
 --> src/lib.rs:1:4
  |
1 | fn rainbow_replace(text: &str, word: &str, palette: &[char]) -> String {
  |    ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(dead_code)]` on by default

warning: `solution` (lib) generated 1 warning
   Compiling futures-macro v0.3.31
   Compiling futures-util v0.3.31
   Compiling futures-executor v0.3.31
   Compiling futures v0.3.31
    Finished `test` profile [unoptimized + debuginfo] target(s) in 11.09s
     Running tests/solution_test.rs (target/debug/deps/solution_test-bfd50394249726db)

running 1 test
test solution_test::test_basic ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

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