3 ms·(Note that 1e9 is 1 000 000 000 and 2e30 is 2 000 000 000 000 000 000 000 000 000 000, different from 2^30.)by Aachen 4y ago(Note that 1e9 is 1 000 000 000 and 2e30 is 2 000 000 000 000 000 000 000 000 000 000, different from 2^30.)