
容斥定理
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陶鸿杰
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Relatives FZU1012————(算术基本定理+容斥)
Given n, a positive integer, how many positive integers less than n are relatively prime to n? Two integers a and b are relatively prime if there are no integers x > 1, y > 0, z > 0 such that...原创 2018-07-26 23:08:44 · 276 阅读 · 0 评论 -
hdu4135Co-prime——容斥定理
Given a number N, you are asked to count the number of integers between A and B inclusive which are relatively prime to N. Two integers are said to be co-prime or relatively prime if they have no co...原创 2018-07-26 23:21:25 · 281 阅读 · 0 评论