1632: 5017. 垦田计划
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
Creator:
Submit:5
Solved:5
Description
二分、差分、贪心都可以求解!
Input
Output
Sample Input Copy
4 9 2
6 1
5 1
6 2
7 1
Sample Output Copy
5