406287: GYM102346 C Crossings With Danger

Memory Limit：256 MB Time Limit：1 S
Judge Style：Text Compare Creator：
Submit：0 Solved：0

Description

C. Crossings With Dangertime limit per test1.5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard output

The complete problemset is available on http://maratona.ime.usp.br/primfase19/provas/competicao/maratona_en.pdf

ExamplesInput
5 6 7
2 2 O
3 2 N
4 2 N
4 5 N
2 6 O
5 5 L
2 4 O
Output
4
Input
2 2 3
1 1 L
1 2 O
2 2 N
Output
0
Input
2 2 3
1 1 L
1 2 O
2 1 N
Output
1

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