Question: I am trying to get the user to input values in to a 2-D array int i; int j; cin >> i >> j; arr[i][j];

I am trying to get the user to input values in to a 2-D array int i; int j; cin >> i >> j; arr[i][j]; why is this not working? its saying use a constant and looking on stack overflow I am getting the vibe that I should use a vector but what to do C++?

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