Algo2.cpp

// C++ program to demonstrate working of count() 
// and find() 
#include <algorithm> 
#include <iostream> 
#include <vector> 
using namespace std; 
  
int main() 
{ 
    // Initializing vector with array values 
    int arr[] = {10, 20, 5, 23 ,42, 20, 15}; 
    int n = sizeof(arr)/sizeof(arr[0]); 
    vector<int> vect(arr, arr+n); 
  
    cout << "Occurrences of 20 in vector : "; 
  
    // Counts the occurrences of 20 from 1st to 
    // last element 
    cout << count(vect.begin(), vect.end(), 20); 
  
    // find() returns iterator to last address if 
    // element not present 
    find(vect.begin(), vect.end(),5) != vect.end()? 
                         cout << "\nElement found": 
                     cout << "\nElement not found"; 
  
    return 0; 
}
Output:

Occurrences of 20 in vector: 2
Element found