diff --git a/src/misc.rs b/src/misc.rs
index 319a1e5..e5c9d73 100644
--- a/src/misc.rs
+++ b/src/misc.rs
@@ -335,7 +335,7 @@ pub fn common_substring<'a>(a: &'a str, b: &'a str) -> Option<String> {
 	Some(last_value)
 }
 
-pub fn chars_take(chars: &Vec<char>, i: usize) -> String {
+pub fn chars_take(chars: &[char], i: usize) -> String {
 	if i > chars.len() {
 		panic!("chars_take: i is larget than chars.len()");
 	}
diff --git a/src/suggestions.rs b/src/suggestions.rs
index f98e668..d936551 100644
--- a/src/suggestions.rs
+++ b/src/suggestions.rs
@@ -26,7 +26,7 @@ pub fn generate_hint(input: &str) -> String {
 		let result_five = get_completion(chars_take(&chars, 5));
 
 		if let Some(output) = result_five {
-			return output.to_owned();
+			return output;
 		}
 	}
 
@@ -34,7 +34,7 @@ pub fn generate_hint(input: &str) -> String {
 		let result_four = get_completion(chars_take(&chars, 4));
 
 		if let Some(output) = result_four {
-			return output.to_owned();
+			return output;
 		}
 	}
 
@@ -42,14 +42,14 @@ pub fn generate_hint(input: &str) -> String {
 		let result_three = get_completion(chars_take(&chars, 3));
 
 		if let Some(output) = result_three {
-			return output.to_owned();
+			return output;
 		}
 	}
 
 	if len >= 2 {
 		let result_two = get_completion(chars_take(&chars, 2));
 		if let Some(output) = result_two {
-			return output.to_owned();
+			return output;
 		}
 	}
 
@@ -214,10 +214,7 @@ mod tests {
 		for (key, value) in manual_values {
 			values.insert(
 				key.to_string(),
-				match value {
-					Some(x) => Some(x.to_string()),
-					None => None,
-				},
+				value.map(|x| x.to_string()),
 			);
 		}