yuniZZ的专栏

Probability One Problem Description Number guessing is a popular game between elementary-school kids. Teachers encourage pupils to play the game as it enhances their arithmetic skills, logical think

Humidex

Eddy's research II       递推关系的简化+递归终止条件要注意 我居然不进行任何的变形，而去直接的暴力。。。果断暴栈了。。。囧 正确的想法应该是考虑到 m A(1,n)=A(0,A(1,n-1))=A(1,n-1)+1 那么可以发现，这个其实是一个等差数列 而且很明显有 A(1,0)=A(0,1)=2,A(1,1)=A(0,A(1,0))=A(1,

An easy problem Problem Description we define f(A) = 1, f(a) = -1, f(B) = 2, f(b) = -2, ... f(Z) = 26, f(z) = -26; Give you a letter x and a number y , you should output the result of y+f(x).  

杨辉三角 Problem Description 还记得中学时候学过的杨辉三角吗？具体的定义这里不再描述，你可以参考以下的图形： 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1     Input 输入数据包含多个测试实例，每个测试实例的输入只包含一个正整数n（1     Output 对应于每一个输入，请输出相应