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  1.  
  2. #include <iostream>
  3. #include <string>
  4. using namespace std;
  5. int square (int l, int w);
  6. double triangle (double h, double b);
  7. double circle (double r);
  8. int main()
  9. {
  10.  
  11. 	double height ,base ,radius , triangle_area , circle_area ;
  12. 	int length, width;
  13. 	string a;
  14. 		do {
  15. 		cout<<" Hello, I will help you with common math formulas ";
  16. 		cout << "1.square.";
  17. 		cout << "2.triangles.";
  18. 		cout << "3.circle";
  19. 		cout << ">> ";
  20. 		int choice;
  21. 		cin >> choice;
  22.  
  23.  
  24. 	switch(choice){
  25.             case 1:
  26.                cout << "Enter the length of the square: ";
  27.                cin >> length;
  28. 	       cout << "Enter the width of the square: ";
  29.                cin >> width;
  30. 	  int area;
  31. 	  area= square(length, width);
  32. 	  cout << "The area of the square is " << area << endl;
  33.  
  34.                     break;
  35.             case 2:
  36. 	 cout << "Enter the height  of the triangle: ";
  37.                cin >> height ;
  38. 	 cout << "Enter the base  of the triangle: ";
  39.                cin >> base ;
  40.                triangle_area = triangle(height, base);
  41.    cout << "The area of the triangle is " << triangle_area << endl;
  42.  
  43.                     break;
  44.             case 3:
  45.                cout << "Enter the circle: ";
  46.                cin >> radius;
  47. 	       circle_area = circle (radius);
  48. cout << "The area of the circle is " << circle_area << endl;
  49.                     break;
  50.  
  51.             default:
  52.    cout << "Wrong choice, you have to enter a number between 1 and 3" << endl;
  53.                     break;
  54.  
  55. 	cout << "Would you like to exit? (yes/no): ";
  56.                      cin >> a;
  57. 	         }
  58.                while ((a == "no") || (a == "n"));
  59. 		  return 0;
  60.                   }
  61. }
  62.  
  63.  int square (int l, int w)
  64. {
  65. return l * w;
  66. }
  67. double triangle (double h, double b)
  68. {
  69. return h * b* 0.5;
  70. }
  71. double circle (double r)
  72. {
  73. return 3.14159 * (r * r);
  74. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp: In function ‘int main()’:
prog.cpp:61:1: error: expected ‘while’ before ‘}’ token
 }
 ^
prog.cpp:61:1: error: expected ‘(’ before ‘}’ token
prog.cpp:61:1: error: expected primary-expression before ‘}’ token
prog.cpp:61:1: error: expected ‘)’ before ‘}’ token
prog.cpp:61:1: error: expected ‘;’ before ‘}’ token
stdout
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Standard output is empty
https://ideone.com/ud6XPH
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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