fork download
copy 
  1. #include <iostream>
  2. #include <set>
  3.  
  4. using std::set;
  5. using std::cout;
  6. using std::endl;
  7.  
  8. int main() {
  9.  
  10.   int A[4] = { 0, 1, 2, 3 };
  11.   int B[6] = { 2, 3, 4, 5, 5, 6 };
  12.   int C[5] = { 5, 6, 7, 8, 9 };
  13.  
  14.   set<int> AB;
  15.   set<int> BC;
  16.   set<int> CA;
  17.   set<int> ABC;
  18.  
  19.   AB.insert( A, A + 4 );
  20.   AB.insert( B, B + 6 );
  21.  
  22.   BC.insert( B, B + 6 );
  23.   BC.insert( C, C+ 5 );
  24.  
  25.   CA.insert( C, C + 5 );
  26.   CA.insert( A, A + 4 );
  27.  
  28.   ABC.insert( A, A + 4 );
  29.   ABC.insert( B, B + 6 );
  30.   ABC.insert( C, C + 5 );
  31.  
  32.   int maxSet = 0;
  33.   size_t maxSize = AB.size();
  34.  
  35.   if ( BC.size() > maxSize ) {
  36.  
  37.     maxSize = BC.size();
  38.     maxSet = 1;
  39.  
  40.   }
  41.  
  42.   if ( CA.size() > maxSize ) {
  43.  
  44.     maxSize = CA.size();
  45.     maxSet = 2;
  46.  
  47.   }
  48.  
  49.   if ( ABC.size() > maxSize ) {
  50.  
  51.     maxSize = ABC.size();
  52.     maxSet = 3;
  53.  
  54.   }
  55.  
  56.   cout << " Array Combination No. " << maxSet << " has MAX unique elements. " <<endl;
  57.   cout << " The max number of unique elements = " << maxSize << endl;
  58.  
  59.   return 0;
  60. }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
 Array Combination No. 3 has MAX unique elements. 
 The max number of unique elements = 10
https://ideone.com/PVpWUM
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!