Declaring a very long integer

[SwartMumba]

How do I define 317584931803 as an integer in C++?

[RRick]

Try the following definition. It works on some (?most?) C and C++ compilers.

long long int lli = 317584931803LL;
 
unsigned long long int ulli = 317584931803ULL;
 

The LL and ULL tell the compiler what type of number you're dealing with. I don't believe they are absolutely necessary in the declaration.

[SwartMumba]

I bow down to your superior knowledge of C++ :-) Thank you!!
If you remove the 'll' or the 'ull' the program does not work. FYI, I am using Dev.

[weaknessforcats]

And you should always check that your value ius within the max/min range of the type:

numeric_limits<long long int> val;
    cout << val.max() << endl;
    cout << val.min() << endl;