摘要： === 1. and运算 ===( & ) and运算通常用于二进制取位操作，例如一个数 and 1的结果就是取二进制的最末位。这可以用来判断一个整数的奇偶，二进制的最末位为0表示该数为偶数，最末位为1表示该数为奇数. 相同位的两个数字都为1，则为1；若有一个不为1，则为0。 00111 11100 （&或者and） ---------------- 00100=== 2. or运算 ===( | ) or运算通常用于二进制特定位上的无条件赋值，例如一个数or 1的结果就是把二进制最末位强行变成1。如果需要把二进制最末位变成0，对这个数or 1之后再减一就可以了，其实际意义就是 阅读全文

摘要： DescriptionFarmer John has three milking buckets of capacity A, B, and C liters. Each of the numbers A, B, and C is an integer from 1 through 20, inclusive. Initially, buckets A and B are empty while bucket C is full of milk. Sometimes, FJ pours milk from one bucket to another until the second bucke 阅读全文

摘要： DescriptionPalindromes are numbers that read the same forwards as backwards. The number 12321 is a typical palindrome.Given a number base B (2 <= B <= 20 base 10), print all the integers N (1 <= N <= 300 base 10) such that the square of N is palindromic when expressed in base B; also pri 阅读全文

摘要： DescriptionConsider the number triangle shown below. Write a program that calculates the highest sumof numbers that can be passed on a route that starts at the top and ends somewhere on the base. Each step can go either diagonally down to the left or diagonally down to the right. 7 3... 阅读全文