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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4.  
  5. int main()
  6. {
  7.     int n;
  8.     std::cin >> n;
  9.  
  10.     std::vector<int>sizes;
  11.  
  12.     std::vector<int> a;
  13.     int count = 0;
  14.     for(int i=0; i<n; i ++)
  15.     {
  16.         int x;
  17.         std::cin >> x;
  18.         a.push_back(x);
  19.  
  20.         if(a[i] == 1){
  21.             count ++;
  22.         }
  23.     }
  24.  
  25.     std::cout << count << "\n";
  26.  
  27.     std::reverse(a.begin(), a.end());
  28.  
  29.     for(int i=0; i<a.size(); i ++)
  30.     {
  31.         if(a[i] == 1)
  32.         {
  33.             sizes.push_back(a.size());
  34.             a.erase(a.begin(), a.end());
  35.         }
  36.     }
  37.  
  38.     for(int i=0; i<sizes.size(); i ++)
  39.     {
  40.         std::cout << sizes[i] << " ";
  41.     }
  42.  
  43.     return 0;
  44. }
Success #stdin #stdout 0s 5292KB
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https://ideone.com/np2lxt
language:
C++ (gcc 8.3)
created:
17 days ago
visibility:
public

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