[Solved] Can’t push_back() after 1000th element in a vector in c++11 [closed]

by


The 1000th element is actually just 1 due to this constructor.

vector <long long> vec(2000,1);  // fill with 2000 elements, each set to 1

Then after this line

vec.push_back(31);  // element [2000] is now 31

Therefore your final vector is

{1, 1, 1, ..., 1, 1, 31}     // length 2001 elements

solved Can’t push_back() after 1000th element in a vector in c++11 [closed]