摘要：
Xenia is an amateur programmer. Today on the IT lesson she learned about the Hamming distance.The Hamming distance between two stringss = s1s2...snandt = t1t2...tnof equal lengthnis value. Record[si ≠ ti]is the Iverson notation and represents the following: ifsi ≠ ti, it is one, otherwise — zero.Now 阅读全文
