hdu1242 Rescue （dfs+剪枝）
Problem Description Angel was caught by the MOLIGPY! He was put in prison by Moligpy. The prison is described as a N * M (N, M <= 200) matrix. Th...
hdu 1072 Nightmare dfs+剪枝
Problem Description Ignatius had a nightmare last night. He found himself in a labyrinth with a time bomb on him. The labyrinth has an exit, Ignatiu...
Ubuntu 内核源码安装
sudo apt-get install linux-source 然后到/usr/src/ 找到已下载好的软件包，把他复制到home目录下,如图 然后解压 tar xjf linux-source-4.4.0.tar.bz2 //具体软件包可能不同 在当前目录下可以查看内核源...
poj 1002 487-3279
Description Businesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word o...
hdu 1197 Specialized Four-Digit Numbers
Description Find and list all four-digit numbers in decimal notation that have the property that the sum of its four digits equals the sum of its di...
hdu 1048 The Hardest Problem Ever
Description Julius Caesar lived in a time of danger and intrigue. The hardest situation Caesar ever faced was keeping himself alive. In order for hi...
poj 2209 The King
Description Once upon a time in a country far away lived a king and he had a big kingdom. He was a very clever king but he had one weakness – he cou...
hdu1312 Red and Black
Problem Description There is a rectangular room, covered with square tiles. Each tile is colored either red or black. A man is standing on a black t...
poj2017 Speed Limit
Description Bill and Ted are taking a road trip. But the odometer in their car is broken, so they don’t know how many miles they have driven. Fortun...
POJ1862 Stripies
Description Our chemical biologists have invented a new very useful form of life called stripies (in fact, they were first called in Russian - polos...