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38 lines
810 B
38 lines
810 B
4 years ago
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## string_permutation
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### Instructions
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Define the function `is_permutation` that returns true if the string `s1` is a permutation of `s2`, otherwise it returns false `s1` is a permutation of `s2` if all the elements in `s1` appear the same number of times in `s2` and all the characters in `s1` appear in `s2` even if in different order)
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### Expected Function
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```rust
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fn is_permutation(s1: &str, s2: &str) -> bool {
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}
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```
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### Usage
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Here is a program to test your function.
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```rust
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fn main() {
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let word = "thought";
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let word1 = "thougth";
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println!(
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"Is `{}` a permutation of `{}`? = {}",
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word,
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word1,
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is_permutation(word, word1)
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);
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}
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```
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And its output
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```console
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student@ubuntu:~/[[ROOT]]/test$ cargo run
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Is `thought` a permutation of `thougth`? = true
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student@ubuntu:~/[[ROOT]]/test$
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```
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