Q29
june 25, 1982, fell on a Friday, on which day of a week june 25, 1987 fall? (1984 is a leap year)
能不能给出思路呀?先谢啦!
1982 6 5-1983 6 5 365days
83-84 366days
84-85 365days
85-86 365days
86-87 365days
365除以7余1 366余2
所以总共加起来余6 那么是星期四
就是这个思路。
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