If loop without any statement

Question

I found this modular exponentiation algorithm on the internet, and i confused. Why the if loop dont have any statement? And when i erase the if loop , the output gone wrong, can anyone tell me? Thank you

This is c++ program

https://www.tutorialspoint.com/cplusplus-program-to-implement-modular-exponentiation-algorithm

Answer 1

The first line below the if condition belongs to the if statement. When you have a single statement to execute for if then you do not need curly braces { }.
Also you can make this out through indentation after if condition.

Answer 2

Thank you guys , i didnt realize about the single statment doesnt need a curly braces, and sorry if i said if was a loop , i still new in programming :(

Answer 3

CodeCat_ thank you once again 😁