how to handle numbers larger than the range of long long unsigned int??

general
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1

How can manipulate numbers larger than the range of long long unsigned integer?

2

Maybe create your own base system to handle larger numbers. (We work in base 10 in decimal representation system)

3

I want to save a number containing 10^16 1s. That is 111111…10^16 times. Can you help?

4

Prefer taking i/p as a string in such cases and do the required manipulations.

5

Try using Big Integer

6

i/p. can you explain. I am new at it.

7

You cant take input as a string with length 10^16.

8

you can break your number into two parts of an array one containing the upper part and one containing the lower part half

eg…

987654321987654321 can b stored as
a=987654321 and b=987654321

any changes in the lower part resulting in a carry have to be reflected in the upper part also

9

You can use array storing element as each digits of the large number. For example if we have to store 391 then we will create an array of size 3 and then store 3,9 and 1 as its elements.
So if we have to calculate factorials of large number like 100 we can use this method - https://discuss.codechef.com/questions/7349/computing-factorials-of-a-huge-number-in-cc-a-tutorial