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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     vector<int> arr {1, 1, 2, 3, 1, 2, 3, 1};
  6.     vector<int> freq(4); // normal frequency
  7.     vector<int> f_freq(5); // frequency over the frequency
  8.  
  9.     for (auto element : arr) {
  10.         freq[element]++;
  11.         f_freq[freq[element]]++;
  12.         cout << "Element [" << element << "] appeared [" << freq[element]
  13.             << "] times so far\nNumber of elements appeared at least ["
  14.             << freq[element] << "] times so far is [" << f_freq[freq[element]]
  15.             << "]\n\n";
  16.     }
  17.  
  18. 	return 0;
  19. }
Success #stdin #stdout 0.01s 5312KB
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stdin
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Standard input is empty
stdout
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Element [1] appeared [1] times so far
Number of elements appeared at least [1] times so far is [1]

Element [1] appeared [2] times so far
Number of elements appeared at least [2] times so far is [1]

Element [2] appeared [1] times so far
Number of elements appeared at least [1] times so far is [2]

Element [3] appeared [1] times so far
Number of elements appeared at least [1] times so far is [3]

Element [1] appeared [3] times so far
Number of elements appeared at least [3] times so far is [1]

Element [2] appeared [2] times so far
Number of elements appeared at least [2] times so far is [2]

Element [3] appeared [2] times so far
Number of elements appeared at least [2] times so far is [3]

Element [1] appeared [4] times so far
Number of elements appeared at least [4] times so far is [1]
https://ideone.com/CGAWyq
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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