Answers for "how to declare size of vector of vector"

set size of a vector c++

void resize (size_type n, value_type val = value_type());

Posted by: Guest on February-26-2022

declare vector of size n in c++

#include <vector>

auto n = 20
// create a vector with n=20 integer elements
std::vector<int> arr(n);

Posted by: Guest on September-13-2020

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