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A problem is easy
描述When Teddy was a child , he was always thinking about some simple math problems ,such as “What it’s 1 cup of water plus 1 pile of dough ..” , “100 yuan buy 100 pig” .etc..
One day Teddy met a old man in his dream , in that dream the man whose name was“RuLai” gave Teddy a problem :
Given an N , can you calculate how many ways to write N as i * j + i + j (0 < i <= j) ?
Teddy found the answer when N was less than 10…but if N get bigger , he found it was too difficult for him to solve.
Well , you clever ACMers ,could you help little Teddy to solve this problem and let him have a good dream ?
- 输入
- The first line contain a T(T <= 2000) . followed by T lines ,each line contain an integer N (0<=N <= 10^11).
- 输出
- For each case, output the number of ways in one line
- 样例输入
213
- 样例输出
01
1 import java.util.Scanner; 2 3 public class Main { 4 public static void main(String[] args) { 5 Scanner scanner=new Scanner(System.in); 6 int T; 7 int number; 8 int i; 9 int count;10 11 T=scanner.nextInt();12 while(true){13 if(T==0)14 break;15 T--;16 17 number=scanner.nextInt();18 19 count=0;20 number++;21 for(i=2;i*i<=number;i++){22 if(number%i==0)23 count++;24 }25 System.out.println(count);26 }27 } 28 }
A problem is easy
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