[Rust] No need to use mut iter #1356
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krahets
reviewed
May 11, 2024
| @@ -31,16 +31,16 @@ fn counting_sort_naive(nums: &mut [i32]) { | |||
| // 完整实现，可排序对象，并且是稳定排序 | |||
| fn counting_sort(nums: &mut [i32]) { | |||
| // 1. 统计数组最大元素 m | |||
| let m = *nums.into_iter().max().unwrap(); | |||
| let m = *nums.iter().max().unwrap() as usize; | |||
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as you can see in the context, m is itended to be used as usize, in here we cast it to usize instead of multiple cast in used place.
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there's no need to use mut iter, just iter is enough