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  1. // ask for a person's name, and greet the person
  2. #include <iostream>
  3. #include <string>
  4.  
  5. using std::cout;
  6. using std::cin;
  7. using std::string;
  8.  
  9. int main()
  10. {
  11. // fetch name
  12. cout << "Please enter your first name: ";
  13. string name;
  14. cin >> name;
  15.  
  16. // message
  17. const string greeting = "Hello, " + name + "!";
  18. // padding
  19. const int pad = 1;
  20. //desired rows/columns
  21. const int rows = pad * 2 + 3;
  22. const string::size_type cols = greeting.size() + pad * 2 + 2;
  23. // seperate output from input
  24. cout << std::endl;
  25. // invariants
  26. int r = 0;
  27.  
  28.  
  29. while (r != rows) {
  30.     string::size_type c = 0;
  31.     while(c != cols) {
  32.         if (r == 0 || r == rows -1 || c == 0 || c == cols -1) { // if in bordering column or row
  33.             cout << "*";   //output *
  34.         } else {
  35.             if (r == pad + 1 && c == pad + 1) { //if on row for greeting
  36.                 cout << greeting; // write greeting
  37.                 c += (greeting.size()-1); // adjust invariant
  38.             } else {
  39.                 cout << " ";
  40.             }
  41.         }
  42.         ++c;
  43.     }
  44.     ++r;
  45.     cout << std::endl;
  46. }
  47.  
  48. return 0;
  49. }
Success #stdin #stdout 0s 3436KB
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stdin
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Johnny
stdout
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Please enter your first name: 
******************
*                *
* Hello, Johnny! *
*                *
******************
https://ideone.com/mb9InW
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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