Max no. of elements that can be stored in the std::vector<int>

Question

As we can store 10^7 elements in array,if we are required to store the elements >= 10^9 then how can we do that?

Answer 1

Max no.of elements that can be stored in the std::vector

Depends on the limitations of the system that runs the program. On a 64 bit system, the maximum is most likely limited by the amount of physical memory your system has available.

if we are required to store the elements >= 10^9 then how can we do that?

Then call vec.resize(1'000'000'000) . That's less than 4 gigabytes of memory (on typical systems).