不用跟踪第一个for循环中的最高得分，而只需跟踪最近的三个分数即可：
user_scores = {}
for line in scores:
name, score = line.rstrip('\n').split(' - ')
score = int(score)
if name not in user_scores:
user_scores[name] = [] # Initialize score list
user_scores[name].append(score) # Add the most recent score
if len(user_scores[name]) > 3:
user_scores[name].pop(0) # If we've stored more than 3, get rid of the oldest
然后最后，获得最大收益：
user_high_scores = {}
for name in user_scores:
user_high_scores[name] = max(user_scores[name]) # Find the highest of the 3 most recent scores
然后，您可以像以前一样打印出高分：
for name in sorted(user_scores):
print(name, '-', user_scores[name])
602392714
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