Difference between Long int and Long Long int in CPP or C

general
1

I want to know the difference between long int and long long int in C and CPP.
I found many of the competitive programmers using long long instead of long in their codes. I tried exploring the range ( or size) up to which either of them hold.
Here is the code https://github.com/ChitturiSaiSuman/General_Codes/blob/master/size.c
I found both handle same range of Integers.
Can anyone explain the difference between both.

2
3

But both were giving same ranges, when I executed the above code.
Here’s the output
size

4

If you read the answer on stackoverflow, you’ll know why…

5

Bro, now long and long long both have memory of 8 bytes. I ran on codechef ide for sizeof(long) and sizeof(long long). Both are giing 8. So, may be because of this they are giving same value. I am not sure

6

Yeah, that’s what, even I tried printing size of Long Long Int and Long Int using sizeof() in C, both were giving same answer (i.e. 8).

7

long int is at least 32bit, and long long int is at least 64bit.

2 Likes
8

If you try it on a 32bit machine, the answer might be different.

9

Man, today you will mostly find only 64bit machine where int takes 4bytes

10

Ok, this answer is helpful. Thanks for your concern.