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  1. // dynarrays.cpp : 
  2.  
  3. #include <iostream>
  4. #include <vector>
  5. #include <string> 
  6. #include <cstdlib>
  7. #include <ctime>
  8.  
  9. using std::cout;
  10. using std::cin;
  11. using std::endl;
  12. using std::vector;
  13.  
  14. int main(int argc, char* argv[])
  15. {
  16.    srand( time(NULL));
  17.    int numValues;
  18.    cout << "Enter number (Max say 1000)";
  19.    cin >> numValues;
  20.    vector<int> numbers;
  21.    numbers.reserve(numValues);
  22.  
  23.    for (int i=0;i<numValues;i++) {
  24. 	   int value = rand() % 6 + 1;
  25. 	   numbers.push_back(value);
  26.    }
  27.  
  28.    cout << numbers.size () << " Elements" << endl;;
  29.  
  30.    cout << "First 10 Numbers are: ";
  31.    for (int i=0;i<10;i++) {
  32. 	   cout << numbers.at(i) << " ";
  33.    }
  34.    cout << endl;
  35.    numbers.at( 5 ) = -100; 
  36.  
  37.    cout << "First 10 Numbers are: ";
  38.    for (int i=0;i<10;i++) {
  39. 	   cout << numbers[i] << " ";
  40.    }
  41.    cout << endl;
  42.    return 0;
  43. }
  44.  
Success #stdin #stdout 4.51s 2860KB
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stdin
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Standard input is empty
stdout
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Enter number (Max say 1000)134516635 Elements
First 10 Numbers are: 5 6 1 6 5 3 6 3 5 2 
First 10 Numbers are: 5 6 1 6 5 -100 6 3 5 2
https://ideone.com/xN2FDr
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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