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Can someone explain the number mentioned in problemset page ?

 1 year ago
source link: http://codeforces.com/blog/entry/107346
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Can someone explain the number mentioned in problemset page ?

By bittu3012, history, 21 hour(s) ago,

Hello !! I wanted to ask what is the meaning of the 4-digit number with an alphabet at the end of it that is written in the ' # ' column on the problem set page , example : 1729C . I can notice that the alphabet tells whether the problem was 'A', 'B', 'C' etc in the contest. But I cannot figure out the meaning of the 4 digits.

Please clarify my doubt...


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