点击打开链接 Sometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party where there are 23 people including you. What is the probability that at least two people in the party have…
题目链接:http://lightoj.com/volume_showproblem.php?problem=1104 题意:一年365天,在有23个人的情况下,这23个人中有两个人生日相同的概率是大于 0.5 的: 现在在不同的星球上一年有n天,求出x,至少有 x 个人才能使得这 x 人中有两个人的生日相同的概率是>=0.5的:现在除了自己之外还要 x 个人,求x: 我们按 n = 365 算的话,那么有x个人,这些人生日都不相同的概率是 p = 1 * 364/365 * 363/365 *…
ime Limit:2000MS Memory Limit:32768KB 64bit IO Format:%lld & %llu Description Sometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party where there are 23 people…
F - 概率(经典问题) Time Limit:2000MS Memory Limit:32768KB 64bit IO Format:%lld & %llu Submit Status Description Sometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party…
Birthday Paradox Sometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party where there are 23 people including you. What is the probability that at least two people in the…