TopCoder

User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

Tags

Description

Input Format

Output Format

Sample Input 1

2
3 2
1 2
2 1
3 2
0
3
4
1 1
1 0
2

Sample Output 1

1
-1

Hints

Problem Source

NPSC 2011 高中組決賽 pF

Subtasks

No. Testdata Range Constraints Score
1 0 範例測資 0
2 0~1 無額外限制 100

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 5000 1048576 1048576 1 2
1 5000 1048576 1048576 2