C++ Prin Vectori Of Vecotrs Code Example

Example 1: get values from a vector of vectors c++

#include <iostream> #include <vector> using namespace std;    int main() {     vector<vector<int> > buff;      for(int i = 0; i < 10; i++)     {         vector<int> temp; // create an array, don't work directly on buff yet.         for(int j = 0; j < 10; j++)             temp.push_back(i);            buff.push_back(temp); // Store the array in the buffer     }      for(int i = 0; i < buff.size(); ++i)     {         for(int j = 0; j < buff[i].size(); ++j)             cout << buff[i][j];         cout << endl;     }      return 0; }

Example 2: how to create a vector from elements of an existing vector in cpp

// Initializing vector with values      vector<int> vect1{1, 2, 3, 4};         // Declaring another vector      vector<int> vect2;         // Copying vector by assign function      vect2.assign(vect1.begin(), vect1.end());