Eira_H的博客

Problem Description Teacher BoBo is a geography teacher in the school.One day in his class,he marked N points in the map,the i-th point is at (Xi,Yi).He wonders,whether there is a tetrad (A,B,

Description 作为老人的小明非常忧伤，因为他马上要被流放到本部去了，住进全左家垅最有历史感的11舍真是一件非常荣幸的事情。 搬行李是个体力活，小明发现自己的行李太多啦，所以他决定去买很多个袋子来装走。到了超市的小明发现，不同大小的袋子居然价格一样？？？虽然买最大的自然最赚，但是小明是名远近闻名的环保人士，他觉得袋子只要能装下他的行李就够了，并且为了不麻烦收银的小姐姐(⊙o⊙)…，他也

Description A fast Fourier transform (FFT) algorithm computes the discrete Fourier transform (DFT) of a sequence, or its inverse (IFFT). Fourier analysis converts a signal from its original domain (of

Description You are a lover of bacteria. You want to raise some bacteria in a box. Initially, the box is empty. Each morning, you can put any number of bacteria into the box. And each night, every b