zoukankan      html  css  js  c++  java
  • HDU 1164 Eddy's research I

    Eddy's research I

    Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
    Total Submission(s): 2486 Accepted Submission(s): 1527


    Problem Description

    Eddy's interest is very extensive, recently he is interested in prime number. Eddy discover the all number owned can be divided into the multiply of prime number, but he can't write program, so Eddy has to ask intelligent you to help him, he asks you to write a program which can do the number to divided into the multiply of prime number factor .

    Input

    The input will contain a number 1 < x<= 65535 per line representing the number of elements of the set.

    Output

    You have to print a line in the output for each entry with the answer to the previous question.

    Sample Input

    11
    9412

    Sample Output

    11
    2*2*13*181

    Author

    eddy

    Recommend

    JGShining
    素数筛选:对于素数筛选的几种方法,日后再做总结。这样不用每次回顾时想半天了。。
     1 #include<stdio.h>
    2 #include<string.h>
    3 #define MAX 65543
    4 bool flag[MAX] ;
    5 int prime[MAX/2] ;
    6 void get_prime( int &k )
    7 {
    8 memset(flag , true , sizeof (flag) ) ;
    9 int i , j ;
    10 for ( i = 2 ; i < MAX ; i ++ )
    11 {
    12 if ( flag[i] ) prime[k++] = i ;
    13 for ( j = 0 ; j < k && i * prime[j] < MAX ; j ++ )
    14 {
    15 flag [i*prime[j]] = false ;
    16 if ( i % prime[j] == 0 ) break ;
    17 }
    18 }
    19 }
    20
    21 int main ()
    22 {
    23 int n , k = 0 ;
    24 get_prime(k) ;
    25 while ( scanf ( "%d" , &n ) != EOF )
    26 {
    27 int i ;
    28 bool first = true ;
    29 for ( i = 0 ; i < k ; i ++ )
    30 {
    31 while ( n % prime[i] == 0 )
    32 {
    33 if ( first )
    34 {
    35 printf ( "%d" , prime[i] ) ;
    36 first = false ;
    37 }
    38 else printf ( "*%d" , prime[i] ) ;
    39 n /= prime[i] ;
    40 }
    41 }
    42 printf("\n");
    43 }
    44 return 0 ;
    45 }

      

     
  • 相关阅读:
    Too many fields describes: 101 解决方法
    [Salesforce] 时区 问题
    [Salesforce] related list remove edit link
    apex获取页面中的url中的参数
    定义常量 map
    FIELD_CUSTOM_VALIDATION_EXCEPTION
    Salesforce message 里 放 link
    WinForm上显示gif动画[转]
    C/C++ Handle data types[转]
    Temporary Post Used For Theme Detection (b4e6dd688472447db6af8590aee16d59 3bfe001a32de4114a6b44005b770f6d7)
  • 原文地址:https://www.cnblogs.com/jbelial/p/2132304.html
Copyright © 2011-2022 走看看