Strange Way to Express Integers
Elina is reading a book written by Rujia Liu, which introduces a strange way to express non-negative integers. The way is described as following:
Choose k different positive integers a1, a2, …, ak. For some non-neg >>继续阅读
C Looooops
A Compiler Mystery: We are given a C-language style for loop of type
for (variable = A; variable != B; variable += C)
statement; >>继续阅读
青蛙的约会
两只青蛙在网上相识了，它们聊得很开心，于是觉得很有必要见一面。它们很高兴地发现它们住在同一条纬度线上，于是它们约定各自朝西跳，直到碰面为止。可是它们出发之前忘记了一件很重要的事情，既没有问清楚对方的特征， >>继续阅读
X问题
Problem Description
求在小于等于N的正整数中有多少个X满足：X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], …, X mod a[i] = b[i], … (0 < a[i] <= 10)。
Input
输入数据的第一行为一个正整数T，表示有T组测试数据。每组测试 >>继续阅读
1319 - Monkey Tradition
1) There are N monkeys who play this game and there are N bamboos of equal heights. Let the height be L meters.In 'MonkeyLand', there is a traditional game called "Bamboo Climbing". The rules of the game are as follows >>继续阅读
