编程介的小学生 2017-06-09 15:03 采纳率: 20.5%
浏览 876
已采纳

Zhu’s Math Problem

Problem Description
Zhu is a powerful ACMer/OverWatcher, now a salt-fish comes to ask Zhu a difficult problem. Zhu thinks that problem is so easy, so he wants to know whether you can solve it?
The problem content are as follows.
You are given four integers A , B , C , D , there are many different (a,b,c,d) satisfy a+c>b+d && a+d≥b+c && 0≤a≤A && 0≤b≤B && 0≤c≤C && 0≤d≤D ?

Input
First Line is an positive integer T(T≤1000) , represents there are T test cases.
Four each test:
The first line contain four integers A , B , C , D.
You can assume that 0≤A,B,C,D≤1018

Output
For each test case, output an positive integer represents answer, because the answer may be large , so you are only need to output answer mod 109+7

Sample Input
1
2 1 1 1

Sample Output
10

  • 写回答

1条回答 默认 最新

  • threenewbee 2017-06-28 15:48
    关注
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥35 平滑拟合曲线该如何生成
  • ¥100 c语言,请帮蒟蒻写一个题的范例作参考
  • ¥15 名为“Product”的列已属于此 DataTable
  • ¥15 安卓adb backup备份应用数据失败
  • ¥15 eclipse运行项目时遇到的问题
  • ¥15 关于#c##的问题:最近需要用CAT工具Trados进行一些开发
  • ¥15 南大pa1 小游戏没有界面,并且报了如下错误,尝试过换显卡驱动,但是好像不行
  • ¥15 自己瞎改改,结果现在又运行不了了
  • ¥15 链式存储应该如何解决
  • ¥15 没有证书,nginx怎么反向代理到只能接受https的公网网站