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 (bishop) Cumberland and becoming Rector of Kirby Wiske in 1755. He was tutor to Lord Algernon Percy, the son of the Duke of Northumberland; in 1762, the Duke gave him the parish of Elsdon, Northumberland. Dodgson was elected as a fellow of the Royal Society in 1762. Rapidly promoted, he was nominated to the bishopric of Ossory on 22 June and consecrated at St. Werburgh's Church, Dublin on 11 August 1765 by William Carmichael, Archbishop of Dublin. Ten years later, he was translated to the bishopric of Elphin by letters patent on 12 April 1775. King George III congratulated him on