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Time Limit
Memory Limit
Input File
Output File
4.0 seconds
1024.0 MiB
Standard Input
Standard Output
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Attachments
nav.cpp
nav.h
grader.cpp
Problem info
Subtask 1 (7 points) has 5 cases.
Subtask 2 (15 points) has 2 cases.
Subtask 3 (26 points) has 9 cases.
Subtask 4 (52 points) has 15 cases.
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This problem has a grader