Https://ide.codingblocks.com/s/186000

#1

please answer me 3 question 1: if i am not including header file (VECTOR)in my code then i am getting ans correct??? 2:if i declaring vector in 25 line rather then in 10 line then it is showing error why??? 3:what it use of <bits/stdc++.h> header file and why vector header file not working in this case 4: iam getting correct ans in online compiler but not getting in dev c++??? it not showing o/p??? which compiler u will recommend me???

#2

Hye @kailash_01

  1. Header file Vector just adds the DS to your available classes you can use while implementation. It doesn’t affect the logical answer of your code.
  2. If you add class Vector after the first usage of vector in your code, then the compiler doesn’t know what Vector is so it gives error.
  3. <bits/stdc++.h> : https://www.geeksforgeeks.org/bitsstdc-h-c/
  4. Dev C++ is an outdated IDE. I would recommend you to use atom or CB IDE.

If your doubt is resolved please mark it as closed.