LeetCode Remove Duplicates from Sorted Array
2014-05-24 14:43
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题目
Given a sorted array, remove the duplicates in place such that each element appear only
once and return the new length.
Do not allocate extra space for another array, you must do this in place with constant memory.
For example,
Given input array A =
Your function should return length =
不使用额外数组,移除一个排序好的数组中的重复元素
代码:
Given a sorted array, remove the duplicates in place such that each element appear only
once and return the new length.
Do not allocate extra space for another array, you must do this in place with constant memory.
For example,
Given input array A =
[1,1,2],
Your function should return length =
2, and A is now
[1,2].
不使用额外数组,移除一个排序好的数组中的重复元素
代码:
class Solution { public: int removeDuplicates(int A[], int n) { if(n==0) return 0; int i=0; for(int j=1;j<n;j++) { if(A[j]!=A[j-1]) A[++i]=A[j]; } return i+1; } };
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