Question

How to print array in C++

Answer 1

#include <iostream>
 
void print_array(int arr[], int size) { 
    for (int i = 0; i < size; i++) { 
        std::cout << arr[i] << "  "; 
    } 
    std::cout << "\n"; 
} 
   
int main(void) 
{ 
    int arr[] = { 6, 8, 1, 0, 3, 8, 9 }; 
 
    print_array(arr, sizeof(arr) / sizeof(arr[0])); 
} 

  
  
  
/*
run:
  
6  8  1  0  3  8  9    
 
*/

 

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Answer 2

#include <iostream>
 
int main(void) {
    int arr[] = {3, 5, 9, 1, 7};   
    int len = sizeof(arr)/sizeof(arr[0]);
     
    for (int i = 0; i < len; i++) { 
        std::cout << arr[i] << " ";  
    }
}
  
  
  
  
/*
run:
  
3 5 9 1 7 
  
*/

 

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