- int sim1 (vector<vector<int> > &);
- void sim2(vector<vector<int> >&);
- int sim2plus(vector<int>, vector<vector<int> > &);
- void sim3(vector<vector<int> > &);
- int sim4(vector<int>, vector<int>, vector<vector<int> > &);
- int sim5(vector<int>, vector<int>, vector<vector<int> > &);
- int sim6(vector<int>, vector<vector<int> > &);
- int sim7(vector<int>, vector<vector<int> > &);
- int sim8(vector<int>, vector<int>, vector<vector<int> > &);
- int transpose_matrix (vector<vector<int> > &, vector<vector<int> > &);
- int update_row_col_totals(vector<vector<int> > &, vector<int>&, vector<int>&);
-