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  1. #include <iostream>
  2. #include <algorithm>
  3. #include <vector>
  4. #include <map>
  5.  
  6. unsigned short INVALID = 0x7FFF;
  7.  
  8. struct less
  9. {
  10.     bool operator() (std::map<int, unsigned short>::value_type const& a, std::map<int, unsigned short>::value_type const& b)
  11.     {
  12.         if (a.second == INVALID || b.second == INVALID)
  13.             return false;
  14.         return a.second < b.second;
  15.     }
  16. };
  17.  
  18. int main()
  19. {
  20.     std::map<int, unsigned short> a;
  21.     a[1] = INVALID;
  22.     a[2] = 1;
  23.     a[3] = 2;
  24.     a[4] = 3;
  25. 	std::cout << "A max = " << std::max_element(a.begin(), a.end(), less())->second << std::endl;
  26. 	std::cout << "A min = " << std::min_element(a.begin(), a.end(), less())->second<< std::endl;
  27.  
  28. 	std::map<int, unsigned short> b;
  29.     b[1] = 1;
  30.     b[2] = 2;
  31.     b[3] = 3;
  32.     b[4] = INVALID;
  33. 	std::cout << "B max = " << std::max_element(b.begin(), b.end(), less())->second << std::endl;
  34. 	std::cout << "B min = " << std::min_element(b.begin(), b.end(), less())->second << std::endl;
  35.  
  36.  
  37.     return 0;
  38. }
  39.  
Success #stdin #stdout 0s 3416KB
comments (?)
stdin 
Standard input is empty
stdout 
A max = 32767
A min = 32767
B max = 3
B min = 1
https://ideone.com/asWouQ
language:
C++14 (clang 8.0)
created:
8 years ago
visibility:
public

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