Assertion: ford algorithm | /r/Synonym | spfa
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text: In China, an algorithm which adds a first-in first-out queue to the Bellman–Ford algorithm, known as SPFA, published by Edward Moore in 1959 and rediscovered by Fanding Duan in 1994, is popular with students who take part in the National Olympiad in Informatics in Provinces [zh] and International Collegiate Programming Contest.