C++ | Leetcode C++题解之第442题数组中重复的数据
题目:
题解:
class Solution {
public:
vector<int> findDuplicates(vector<int>& nums) {
int n = nums.size();
vector<int> ans;
for (int i = 0; i < n; ++i) {
int x = abs(nums[i]);
if (nums[x - 1] > 0) {
nums[x - 1] = -nums[x - 1];
}
else {
ans.push_back(x);
}
}
return ans;
}
};
原文地址:https://blog.csdn.net/Ddddddd_158/article/details/142610153
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