msb-public-java
/
LeetCode
mirror of https://github.com/yuanguangxin/LeetCode
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add q581

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pull/6/head
yuanguangxin 4 years ago
parent 7a29a75b85
commit a497e67094
3 changed files with 73 additions and 31 deletions
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71
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1
README.md
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@ -55,6 +55,7 @@
* [q54_螺旋矩阵](/src/数组操作/q54_螺旋矩阵)
* [q73_矩阵置零](/src/数组操作/q73_矩阵置零)
* [q78_子集](/src/数组操作/q78_子集)
* [q581_最短无序连续子数组](/src/数组操作/q581_最短无序连续子数组)
* [q945_使数组唯一的最小增量](/src/数组操作/q945_使数组唯一的最小增量)
### 栈相关

32
src/数组操作/q581_最短无序连续子数组/Solution.java
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@ -0,0 +1,32 @@
package 数组操作.q581_最短无序连续子数组;
import java.util.Arrays;
/**
* 利用排序 o(n*log(n))
*/
public class Solution {
public int findUnsortedSubarray(int[] nums) {
if (nums == null || nums.length < 1) {
return 0;
}
int[] cloneNums = nums.clone();
Arrays.sort(nums);
int begin = Integer.MAX_VALUE;
int end = 0;
for (int i = 0; i < nums.length; i++) {
if (nums[i] != cloneNums[i]) {
begin = Math.min(begin, i);
end = Math.max(end, i);
}
}
return Math.max(end - begin + 1, 0);
}
public static void main(String[] args) {
new Solution().findUnsortedSubarray(new int[]{2, 6, 4, 8, 10, 9, 15});
}
}
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