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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. int main() {
  6. vector<vector<int>> arr(6,vector<int>(6));
  7.  
  8. cout << arr.size() << '\n';
  9. cout << arr[0].size() << '\n';
  10. return 0;
  11. }
Success #stdin #stdout 0s 3412KB
stdin
Standard input is empty
stdout
6
6