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  1. #include <iostream>
  2. using namespace std;
  3. float add( float x, float y){
  4.   return x+y;
  5. }
  6. float sub( float x, float y){
  7.   cout<<"do you want +ve results? (1-->True, 0--> False)  "<<endl;
  8.   bool A; cin>>A;
  9.   if(A){
  10.     if( x > y){
  11.       return x-y;
  12.     }else{
  13.       return y-x;
  14.     }
  15.   }
  16.   return x-y;
  17. }
  18.  
  19. float mul( float x, float y) {
  20.   return x*y;
  21. }
  22.  
  23. float div(float x, float y) {
  24.   cout<<"do you want to divide the bigger over the smaller? (1-->True, 0--> False)  "<<endl;
  25.   bool A; cin>>A;
  26.   if(A){
  27.     if( x > y){
  28.       return x/y;
  29.     }else{
  30.       return y/x;
  31.     }
  32.   } else{}
  33.   return x/y;
  34. }
  35. int main() {
  36.   float num1, num2;
  37.   cout<<"enter the first number: \n";
  38.   cin>>num1;
  39.   cout<<"enter the second number: \n";
  40.   cin>>num2;
  41.   int x;
  42.   cout<<"which calculation you want to make?\n";
  43.   cout<<"1-->Addition\n"<<"2-->Subtraction\n" <<"3-->Multiplication\n"<<"4-->Division\n";
  44.   cin>>x;
  45.   switch (x) {
  46.     case 1:
  47.       cout << add(num1, num2);
  48.       break;
  49.       case 2:
  50.       cout << sub(num1, num2);
  51.       break;
  52.       case 3:
  53.       cout<< mul(num1, num2);
  54.       break;
  55.       case 4:
  56.       cout<< div(num1, num2);
  57.       break;
  58.       default:
  59.       cout << " Invalid input";
  60.   }
  61. }
  62.  
Success #stdin #stdout 0s 5324KB
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stdin
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2
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stdout
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enter the first number: 
enter the second number: 
which calculation you want to make?
1-->Addition
2-->Subtraction
3-->Multiplication
4-->Division
5
https://ideone.com/VddFGp
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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