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  1. #include <iostream>
  2. #include <algorithm>
  3. using namespace std;
  4.  
  5. template< typename T >
  6. bool negative( T x )
  7. {
  8. 	return x < 0 ;
  9. }
  10.  
  11. int main() {
  12.     int size;
  13.     cin >> size;
  14.     vector<double> array( size );
  15.     generate( begin( array ), 
  16.               end  ( array ), 
  17.               []()
  18.               {
  19.                     int x;
  20.                     cin >> x;
  21.                     return x;
  22.               } );
  23.     double product = 1.0;
  24.     for_each( begin( array ), 
  25.               end  ( array ), 
  26.               [&product]( auto x )
  27.               {
  28.               	  if( negative( x ) )
  29.               	  {
  30.               	  	  product *= x;
  31.               	  }
  32.               } );
  33.     cout << product << " " << count_if( begin( array ), 
  34.                                         end  ( array ),  
  35.                                         negative<double>
  36.                                       );
  37. 	return 0;
  38. }
Success #stdin #stdout 0s 3232KB
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5
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-30 3
https://ideone.com/kZ2kVF
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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