Bound Found Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 1651   Accepted: 544   Special Judge Description Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration…

Bound Found Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 5408 Accepted: 1735 Special Judge Description Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration (that…

Bound Found Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 2277   Accepted: 703   Special Judge Description Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration…

一.首先介绍一下什么叫尺取 过程大致分为四步: 1.初始化左右端点,即先找到一个满足条件的序列. 2.在满足条件的基础上不断扩大右端点. 3.如果第二步无法满足条件则到第四步,否则更新结果. 4.扩大左端点,并且回到第二步. 很明显如果要这样做,那么这个序列要是一个有顺序的序列,因为这样的话保证左端点不变,右端点一直向右延伸一定会使答案靠近结果.(可以看一道题理解一下) Signals of most probably extra-terrestrial origin have been rec…

传送门 参考资料: [1]:http://www.voidcn.com/article/p-huucvank-dv.html 题意: 题意就是找一个连续的子区间,使它的和的绝对值最接近target. 题解: 这题的做法是先预处理出前缀和,然后对前缀和进行排序,再用尺取法贪心的去找最合适的区间. 要注意的是尺取法时首尾指针一定不能相同,因为这时区间相减结果为0,但实际上区间为空,这是不存在的,可能会产生错误的结果. 处理时,把(0,0)这个点也放进数组一起排序,比单独判断起点为1的区间更方便. 还…

Bound Found Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 5207   Accepted: 1667   Special Judge Description Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration…

Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration (that must be going through a defiant phase: "But I want to use feet, not meters!"). Each signal seems to come in two…

Bound Found Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 4384   Accepted: 1377   Special Judge Description Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration…

Problem A sequence of N positive integers (10 < N < 100 000), each of them less than or equal 10000, and a positive integer S (S < 100 000 000) are given. Write a program to find the minimal length of the subsequence of consecutive elements of th…

Description Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration (that must be going through a defiant phase: "But I want to use feet, not meters!"). Each signal seems to…