問(wèn)題描述快速非支配排序問(wèn)題有下面兩個(gè)列表:front = [[]]n = [2,1,0,2,3,0,0,1,2,5]先要將n中相同數(shù)值的索引,如n[1]=n[7]=1,n[9]=5進(jìn)行歸類(lèi)排序,并存于front中結(jié)果:front = [[2,5,6],[1,7],[0,3,8],[4],[9]]
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from collections import defaultdict n = [2,1,0,2,3,0,0,1,2,5] d = defaultdict(list)for index, item in enumerate(n): d[item].append(index) front = [ d[i] for i in sorted(d)]
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