自己写的计算生日不重复概率C++原码。用彷真的方法, 利用随机数产生每个同学的生日,计算出生日不重复的概率并与前面的结果进行比较。-Write their own birthday do not wish to repeat the calculation of the probability of C++ The original code. Using simulation methods, the use of random number generator for each studen