Answers for "how to declare vector of vector of size n,m'"

c++ initialize vector of vector with size

vector<vector<int>> v(10, vector<int>(10));

Posted by: Guest on May-24-2021

c++ create vector of size

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

for(int x = 0; x < 20; ++x)
   arr[x] = x;

Posted by: Guest on July-15-2020

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