故答案是:16-3=13 7 容斥原理(The Inclusion-Exclusion Principle) 例2: 求1到600之间不能被6整除的整数个数. 已知1到600之间共有600个数。
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The principle of inclusion-exclusion 排容原理 ; 这种原理称为容斥原理
A theory model, based on the inclusion-exclusion principle from combinatorics, was built to analyze the multicast blocking probability in WDM (wavelength division multiplexing) network.
通过建立一个基于组合数学中容斥原理的理论模型，分析了波分复用网络中组播的阻塞率。
Based on inclusion exclusion principle of set theory, a new algorithm to calculate the whole projective area was put forward to those overlapped complex geometrical objects in any direction.
在此基础上，根据集合论中的包含互斥理论，提出了一种求取多个复杂几何形体在任意方向的投影面积的新算法。
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