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  1. //@Author Damien Bell
  2. #include <iostream>
  3. #include <cmath>
  4. using namespace std;
  5. int main(){
  6.     int choice=0;
  7.     double x, y, z=0;
  8.  
  9.     cout << "Enter a number between 1 and 25: ";
  10.     cin >>choice;
  11.  
  12.     if(choice > 10){
  13.         cout <<"Number is > 10\n";
  14.         if (choice > 20){
  15.             cout <<" Number is greater than 20\n";
  16.             if (choice >20 && choice <25){
  17.                 cout << "Number is greater than 20. And <25 \n";
  18.             }
  19.             else{
  20.                 //null
  21.             }
  22.           }
  23.         else {
  24.             //null
  25.         }
  26.     }
  27.     else {
  28.         //null
  29.     }
  30.  
  31.  
  32.  
  33.  
  34.  
  35.  return 0;
  36. }
stdin
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21
compilation info 
prog.cpp: In function ‘int main()’:
prog.cpp:7: warning: unused variable ‘x’
prog.cpp:7: warning: unused variable ‘y’
prog.cpp:7: warning: unused variable ‘z’
stdout
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Enter a number between 1 and 25: Number is > 10
 Number is greater than 20
Number is greater than 20. And <25
https://ideone.com/Up2K3
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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