Wa in ATOMS

exyash 2014-12-15 09:19:04 UTC #1

following is my code for ATOMS ideone.com/vZU71X
pls tell what is wrong in this code.

leppyr64 2014-12-15 12:18:42 UTC #2

2^64 - (10^18)^2 = ?

exyash 2014-12-15 13:46:18 UTC #3

i dont get it. why have u taken 2^64?

leppyr64 2014-12-15 15:01:59 UTC #4

Unsigned long long is a 64 bit unsigned integer. The maximum value that you can store in it is 2^64-1.