2163 . Mario Kart

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User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

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Description

The PDF version of this problem can be downloaded here.

Input Format

Output Format

Sample Input 1

2
3 2 4
3 1 6
3 2
3 3
3 1 4
1 3 6
3 2

Sample Output 1

2
-1

Hints

Problem Source

Migrated from old NTUJ.

2013 ACM Arab Collegiate Programming Contest

Subtasks

No. Testdata Range Score

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 3000 65536 131072
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