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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. #define MAX 100
  5.  
  6. int n = 10;
  7. int a[MAX] = { 1,2,3,4,1,2,100,3,100,1 };
  8.  
  9. int m[MAX + 1]; // maps stick len to number of sticks
  10.  
  11. void count()
  12. {
  13.   for (int i = 0; i < n; ++i)
  14.     m[a[i]]++;
  15. }
  16.  
  17. int main()
  18. {
  19.   count();
  20.   for (int i = 1; i < MAX + 1; ++i)
  21.     if (m[i])
  22.       std::cout << i << "->" << m[i] << std::endl;
  23. }
  24.  
Success #stdin #stdout 0.01s 5408KB
comments (?)
stdin
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Standard input is empty
stdout
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1->3
2->2
3->2
4->1
100->2
https://ideone.com/NIldHt
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
secret

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