text: Ways to Remove Edges from a Complete Graph to make Odd Edges | Function to return the number of ways to remove edges from the graph so that odd number of edges are left in the graph ; Total number of edges ; Driver code
code: def countWays ( N ) : NEW_LINE INDENT E = ( N * ( N - 1 ) ) / 2 NEW_LINE if ( N == 1 ) : NEW_LINE INDENT return 0 NEW_LINE DEDENT return int ( pow ( 2 , E - 1 ) ) NEW_LINE DEDENT if __name__ == ' _ _ main _ _ ' : NEW_LINE INDENT N = 4 NEW_LINE print ( countWays ( N ) ) NEW_LINE DEDENT