【笔试题】重复的数加下标

用一个map存不就完了?

line = input() arr = list(map(str,line.split(","))) res = [] dic = {} for i,val in enumerate(arr):     if val not in res:         res.append(val)         dic[val] = 1     else:         dic[val] +=1         tmp = val+"_"+str(dic[val]-2)         res.append(tmp)             print(res)