279: Mainline

The layout of nested if statements is a matter of convention. Here is another common arrangement:

#include  
main ( ) { 
  int temperature; 
  cin >> temperature; 
  if (temperature < 25) 
    cout << "It is too cold!" << endl; 
  else if (temperature > 50) 
    cout << "It is too warm!" << endl; 
} 
--- Data ---
55 
--- Result --- 
It is too warm! 

Whatever convention you use, you should be able to defend it on the ground that you think it contributes to program clarity.