摘要:
X is a good number if after rotating each digit individually by 180 degrees, we get a valid number that is different from X. Each digit must be rotate 阅读全文
posted @ 2018-07-06 00:51
hopskin1
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摘要:
Implement a MapSum class with insert, and sum methods. For the method insert, you'll be given a pair of (string, integer). The string represents the k 阅读全文
posted @ 2018-07-06 00:25
hopskin1
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