2005: 动物园

Memory Limit:512 MB Time Limit:5.000 S
Submit数:1 Solved数:1

Description

Sample Input Copy

3 3 5 4
1 4 6
0 3
2 4
2 5

Sample Output Copy

13

HINT

2 2 4 3
1 2
1 3
2 4
--------
2 
 demo3 

Source/Category

Problem :   2005        Language:        




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