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fix: 'counting_sort' panicked at 'index out of bounds... #397

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Oct 11, 2019
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fix: 'counting_sort' panicked at 'index out of bounds... #397

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5 changes: 3 additions & 2 deletions rust/13_sorts/counting_sort.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,13 +7,14 @@ pub fn counting_sort(mut nums: Vec<i32>) -> Vec<i32> {
let nums_len = nums.len();
// 获取最大数
let mut max = nums[0];
// 申请一个长度为 max + 1 的新数组
let mut bucket = vec![0; (max+1) as usize];

let mut tmp = vec![0; nums_len];

for i in 1..nums_len {
if max < nums[i] { max = nums[i]; }
}
// 申请一个长度为 max + 1 的新数组
let mut bucket = vec![0; (max+1) as usize];

for i in 0..nums_len {
bucket[nums[i] as usize] += 1;
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