Dodgson's method Dodgson's method Dodgson's method is an electoral system proposed by the author, mathematician and logician Charles Dodgson, better known as Lewis Carroll. The method is to extend the Condorcet method by swapping candidates until a Condorcet winner is found. The winner is the candidate which requires the minimum number of swaps. Dodgson proposed this voting scheme in his 1876 work "A method of taking votes on more than two issues". Given an integer "k" and an election, it is NP-complete to determine whether a candidate can become a Condorcet winner with fewer than "k" swaps. In Dodgson's method, each voter
Charles Dodgson (priest) at Preston Brook, and held weekly services there for the bargees. In 1843 Dodgson was given the Crown living of Croft, Yorkshire, by the Prime Minister, Robert Peel, at the urging of Longley. In 1852 he was additionally collated as a canon of Ripon Cathedral and in 1854 became the Archdeacon of Richmond. At Croft he restored the chancel of St Peter's Church and once again started a school, sacrificing part of the glebe to it. He taught there, as did his wife and later some of his children. Dodgson was a contemporary and college friend of Edward Bouverie Pusey,