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  1. #include <iostream>
  2.  
  3. int main() {
  4.     int *arr1, *arr2;
  5.  
  6.     // Dynamically allocate an array of 10 integers
  7.     arr1 = new int[10];
  8.  
  9.     // Initialize arr1 with some values
  10.     for (int i = 0; i < 10; ++i) {
  11.         arr1[i] = i + 1; // Assign values 1 through 10
  12.     }
  13.  
  14.     // Dynamically allocate an array of 20 integers
  15.     arr2 = new int[20];
  16.  
  17.     // Copy elements from arr1 to the first 10 elements of arr2
  18.     for (int i = 0; i < 10; ++i) {
  19.         arr2[i] = arr1[i];
  20.     }
  21.  
  22.     // Initialize the remainder of arr2 to 0
  23.     for (int i = 10; i < 20; ++i) {
  24.         arr2[i] = 0;
  25.     }
  26.  
  27.     // Display arr2 for verification
  28.     for (int i = 0; i < 20; ++i) {
  29.         std::cout << arr2[i] << " ";
  30.     }
  31.     std::cout << std::endl;
  32.  
  33.     // Free dynamically allocated memory
  34.     delete[] arr1;
  35.     delete[] arr2;
  36.  
  37.     return 0;
  38. }
  39.  
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin
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1
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10
42
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stdout
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1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0
https://ideone.com/MRNsYv
language:
C++ (gcc 8.3)
created:
6 days ago
visibility:
public

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