11-03-02-4.cpp

more efftive 代码

#include <iostream>
#include <functional>
#include <algorithm>
using namespace std;

int main()
{
  int A[] = { 2, 0, 4, 6, 0, 3, 1, -7 };
  const int N = sizeof(A) / sizeof(int);
  
  cout << "Number of event element: " 
       << count_if(A, A + N,
                   compose1(bind2nd(equal_to<int>(), 0),
                            bind2nd(modulus<int>(), 2)))
       << endl;
}