NYOJ 216 A problem is easy【数学题】
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A problem is easy
时间限制:1000 ms | 内存限制:65535 KB
难度:3
- 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
- 上传者
- 苗栋栋
#include<stdio.h>int main(){int i,j,s,m,sum;scanf("%d",&s);while(s--){sum=0;scanf("%d",&m);for(i=1;(i+1)*(i+1)-1<=m;i++){if((m+1)%(i+1)==0)sum++;}printf("%d\n",sum);}return 0;}
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