Primes on Interval】的更多相关文章

Primes on Interval Time Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 237C Appoint description:  System Crawler  (2016-04-26) Description You've decided to carry out a survey in the theory…
AC代码: #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> using namespace std; const int maxn = 1001000; #define  inf (1<<29) //上面的位运算还真心没有看懂 // p[i] is i-th prime's position bool pp[maxn]; //里面保存的是一…
Count primes 题目连接: http://acm.split.hdu.edu.cn/showproblem.php?pid=5901 Description Easy question! Calculate how many primes between [1...n]! Input Each line contain one integer n(1 <= n <= 1e11).Process to end of file. Output For each case, output…
Count primes Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2625    Accepted Submission(s): 1337 Problem Description Easy question! Calculate how many primes between [1...n]!   Input Each line…
A. Free Cash 判断值相同的最长长度. B. Young Table 按从上到下,从左到右排序,每个位置最多交换一次. C. Primes on Interval \(p_i\)表示位置\(i\)需要\(p_i\)长度来覆盖\(k\)个质数. 从\(a\)开始枚举\(i\),则位置\(i\)需要的长度\[l=max(p_i,b-i+1)\] D. T-decomposition 每两点构成新点,dfs给新点连边. E. Build String 费用流.…
这次练习从第一题开始注定水了,1A的题目wa了3次,第三题走进了错误的思想,wa到死....其他三个题目看都没看...........赛后慢慢搞. A. Free Cash 巨水的一题,直接找出每个时间点出现次数最多那个值. #include <iostream> #include <algorithm> #include <cmath> #include <cstdio> #include <cstdlib> #include <cstr…
C. Primes on Interval time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You've decided to carry out a survey in the theory of prime numbers. Let us remind you that a prime number is a positi…
这场div2可以说是我见过的比较水的一场吧.基本都是一眼题. 比赛地址http://acm.bnu.edu.cn/bnuoj/contest_show.php?cid=1836 题号是237A-237E A题:Free Cash 这题不能多说.就是每个分钟覆盖一下,算出最大就行. B题:Young Table 题目中有一个很重要的条件是,操作的个数不大于这些数的个数就行了. 那么很明显的一个想法就是,第一个位置放1,第二个位置放2,依次类推,最后肯定能满足条件. 复杂度应该是n^2的. C题:P…
Count primes Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2719    Accepted Submission(s): 1386 Problem Description Easy question! Calculate how many primes between [1...n]!   Input Each line…
C. Primes on Interval time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You've decided to carry out a survey in the theory of prime numbers. Let us remind you that a prime number is a positiv…