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  1. #include <vector>
  2. #include <deque>
  3. #include <iostream>
  4.  
  5. std::vector<int> maxSlidingWindow(std::vector<int>& nums, int k) {
  6.     std::vector<int> result;
  7.     std::deque<int> dq;
  8.  
  9.     if (nums.empty()) return result; // Handle the case when nums is empty
  10.  
  11.     for (int i = 0; i < nums.size(); ++i) {
  12.         while (!dq.empty() && dq.front() <= i - k) {
  13.             dq.pop_front();
  14.         }
  15.  
  16.         while (!dq.empty() && nums[dq.back()] <= nums[i]) {
  17.             dq.pop_back();
  18.         }
  19.  
  20.         dq.push_back(i);
  21.  
  22.         if (i >= k - 1) {
  23.             result.push_back(nums[dq.front()]);
  24.         }
  25.     }
  26.  
  27.     return result;
  28. }
  29.  
  30. int main() {
  31.     std::vector<int> nums1 = {1,3,-1,-3,5,3,6,7};
  32.     int k1 = 3;
  33.     std::vector<int> result1 = maxSlidingWindow(nums1, k1);
  34.     std::cout << "Output for Example 1: ";
  35.     for (int num : result1) {
  36.         std::cout << num << " ";
  37.     }
  38.     std::cout << std::endl;
  39.  
  40.     std::vector<int> nums2 = {1};
  41.     int k2 = 1;
  42.     std::vector<int> result2 = maxSlidingWindow(nums2, k2);
  43.     std::cout << "Output for Example 2: ";
  44.     for (int num : result2) {
  45.         std::cout << num << " ";
  46.     }
  47.     std::cout << std::endl;
  48.  
  49.     return 0;
  50. }
  51.  
Success #stdin #stdout 0.01s 5264KB
comments (?)
stdin 
Standard input is empty
stdout 
Output for Example 1: 3 3 5 5 6 7 
Output for Example 2: 1
https://ideone.com/gxgmil
language:
C++ (gcc 8.3)
created:
14 days ago
visibility:
public

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