Description I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.                          Input The first line of the input contains an integer T(1<=T<=20) which means the number of test cases.…

Description In a k bit 2's complement number, where the bits are indexed from 0 to k-1, the weight of the most significant bit (i.e., in position k-1), is -2^(k-1), and the weight of a bit in any position i (0 ≤ i < k-1) is 2^i. For example, a 3 bit…

Description Sally Jones has a dozen Voyageur silver dollars. However, only eleven of the coins are true silver dollars; one coin is counterfeit even though its color and size make it indistinguishable from the real silver dollars. The counterfeit coi…

Description Problems involving the computation of exact values of very large magnitude and precision are common. For example, the computation of the national debt is a taxing experience for many computer systems.         This problem requires that yo…

Description Soon after he decided to design a T-shirt for our Algorithm Board on Free-City BBS, XKA found that he was trapped by all kinds of suggestions from everyone on the board. It is indeed a mission-impossible to have everybody perfectly satisf…

Description A robot has been programmed to follow the instructions in its path. Instructions for the next direction the robot is to move are laid down in a grid. The possible instructions are N north (up the page)         S south (down the page)     …

Description          在2×n的一个长方形方格中,用一个1× 2的骨牌铺满方格,输入n ,输出铺放方案的总数.         例如n=3时,为2× 3方格,骨牌的铺放方案有三种,如下图:                  Input 输入数据由多行组成,每行包含一个整数n,表示该测试实例的长方形方格的规格是2×n (0<n<=50).                  Output 对于每个测试实例,请输出铺放方案的总数,每个实例的输出占一行.              …

Description          有一只经过训练的蜜蜂只能爬向右侧相邻的蜂房,不能反向爬行.请编程计算蜜蜂从蜂房a爬到蜂房b的可能路线数.         其中,蜂房的结构如下所示.         Input 输入数据的第一行是一个整数N,表示测试实例的个数,然后是N 行数据,每行包含两个整数a和b(0<a<b<50).                  Output 对于每个测试实例,请输出蜜蜂从蜂房a爬到蜂房b的可能路线数,每个实例的输出占一行.              …

Description A single positive integer i is given. Write a program to find the digit located in the position i in the sequence of number groups S1S2...Sk. Each group Sk consists of a sequence of positive integer numbers ranging from 1 to k, written on…

Description Bessie is training for her next race by running on a path that includes hills so that she will be prepared for any terrain. She has planned a straight path and wants to run as far as she can -- but she must be back to the farm within M se…