UVA - 120 Stacks of Flapjacks Time Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu Description Background Stacks and Queues are often considered the bread and butter of data structures and find use in architecture, parsing, oper…
Stacks of Flapjacks Background Stacks and Queues are often considered the bread and butter of data structures and find use in architecture, parsing, operating systems, and discrete event simulation. Stacks are also important in the theory of formal…
题意:给定平面上N个点和一个值D,要求在x轴上选出尽量少的点,使得对于给定的每个店,都有一个选出的点离它的欧几里德距离不超过D. 解法:先把问题转换成模型,把对平面的点满足条件的点在x轴的直线上可得到一个个区间,这样就是选最小的点覆盖所有的区间的问题了.我之前的一篇博文有较详细的解释:关于贪心算法的经典问题(算法效率 or 动态规划).代码实现我就不写了.…