HDOJ 1319 Prime Cuts<数论>】的更多相关文章

学会了不难.通过这道题学习了两点: 1:筛选法求素数. 2:在写比较长的程序的时候,给每个功能部分加上注释,思路会更清晰. 题意: 1.题目中所说的素数并不是真正的素数,包括1: 2.需要读懂题意,对于输入的n和c,如果1到n之间有偶数个素数则打印2c个数,奇数个素数则打印2c-1个数: 3.打印的数是所有素数中位于中间位置的那些数. 4.虽然数据量n<100.但是应确定第100+个素数是那个数,稍微把数组开大一些. #include<iostream> #include<cstd…
Prime Cuts Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 10610   Accepted: 4046 Description A prime number is a counting number (1, 2, 3, ...) that is evenly divisible only by 1 and itself. In this problem you are to write a program th…
Prime Cuts Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 11961   Accepted: 4553 Description A prime number is a counting number (1, 2, 3, ...) that is evenly divisible only by 1 and itself. In this problem you are to write a program th…
A prime number is a counting number (1, 2, 3, ...) that is evenly divisible only by 1 and itself. In this problem you are to write a program that will cut some number of prime numbers from the list of prime numbers between (and including) 1 and N. Yo…
Special Prime Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 738    Accepted Submission(s): 390 Problem Description Give you a prime number p, if you could find some natural number (0 is not in…
Problem Description A ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separately, and the sum of numbers in two adjacent circles should be a prime. Note: the number of first circle should always be 1…
题目链接: C. Bear and Prime 100 time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output This is an interactive problem. In the output section below you will see the information about flushing the outpu…
Problem Description A ring is compose of n circles as shown in diagram. Put natural number 1, 2, -, n into each circle separately, and the sum of numbers in two adjacent circles should be a prime. Note: the number of first circle should always be 1.…
10140 - Prime Distance 题目链接 题意:求[l,r]区间内近期和最远的素数对. 思路:素数打表,打到sqrt(Max)就可以,然后利用大的表去筛素数.因为[l, r]最多100W.所以能够去遍历一遍.找出答案. 注意1的情况,一開始没推断1,结果WA了 代码: #include <stdio.h> #include <string.h> #include <algorithm> using namespace std; #define INF 0x…
版权声明:本文为博主原创文章,未经博主同意不得转载. https://blog.csdn.net/u011328934/article/details/26094917 题目连接:Codefoces 432C Prime Swaps 题目大意:给出一个序列.长度为n,要求用5n以内的交换次数使得序列有序.而且交换的i,j两个位置的数时要满足,j−i+1为素数. 解题思路:a数组为相应的序列,b数组为相应的有序序列,p为相应数的位置.每次从有序序列最小的位置開始,该为必须放b[i]才对.所以p[b…