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UVALive-7457-Discrete Logarithm Problem(取模运算)
UVA-10929-You can say 11(秦九昭算法+同余与模算术)
int i, len = s.cout << s << " is a multiple of 11.cout << s << " is not a multiple of 11.
UVALive-3399-Sum of Consecutive Prime Numbers(素数筛,暴力)
POJ-3126-Prime Path(BFS)
The ministers of the cabinet were quite upset by the message from the Chief of Security stating that they would all have to change the four-...
POJ-2387-Til the Cows Come Home(最短路)
Bessie is out in the field and wants to get back to the barn to get as much sleep as possible before Farmer John wakes her for the morning m...
POJ-2236-Wireless Network(并查集)
An earthquake takes place in Southeast Asia. The ACM (Asia Cooperated Medical team) have set up a wireless network with the lap computers, b...
POJ-2251-Dungeon Master(3D迷宫,BFS)
You are trapped in a 3D dungeon and need to find the quickest way out! The dungeon is composed of unit cubes which may or may not be filled ...
POJ-3278-Catch That Cow(BFS)
Farmer John has been informed of the location of a fugitive cow and wants to catch her immediately. He starts at a point N (0 ≤ N ≤ 100,000)...
POJ-3984-迷宫问题(BFS)
它表示一个迷宫,其中的1表示墙壁,0表示可以走的路,只能横着走或竖着走,不能斜着走,要求编程序找出从左上角到右下角的最短路线。一个5 × 5的二维数组,表示一个迷宫。数据保证有唯一解。左上角到右下角的最短路径,格式如样例所示。Q.while( !Q.v = Q.Q.if( v.x...
位运算之——按位与(&)操作——(快速取模算法)
由于位运算直接对内存数据进行操作,不需要转成十进制,因此处理速度非常快。对10101100000000进行右移8位得到的是101011,这就得到了a的8~15位的掩码了。用一般的 (a >= 0) && (a <= 65535) 可能要两次判断。后面的常数是编译时就算好了的。其实...
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2022-10-14