Possible duplicates:
"BigInt" in C?
How to implement a big int in C ++
How do we work with large numbers without using external libraries and functions?
Some problems are as follows:
What is the sum of the digits of the number 21000?
Design the first ten digits of the sum of the next one hundred and fifty-digit numbers.
37107287533902102798797998220837590246510135740250
46376937677490009712648124896970078050417018260538
74324986199524741059474233309513058123726617309629
91942213363574161572522430563301811072406154908250
23067588207539346171171980310421047513778063246676
8926........................................771585
42502016545090413245809786882778948721859655517457
72107838435069186155435662884062257473692284509516
20849603980134001723930671666823555245252804609722
53503534226472524250874054075591789781264330331690
(this list goes on ...)
How would you decide to solve such problems? Which approach can i use?
Thanks in advance.
* By the way, these problems are taken from Project Euler, but many other cases exist not only there. I found them just for an example.
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