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Helpful information

In order to use the offline tester / visualizer tool for testing your solution locally, you'll have to modify your solution by adding the main method that interacts with the tester / visualizer via reading data from standard input and writing data to standard output. As long as you do not change the implementation of the method placeTraps, this doesn't affect the way your solution works when submitted to our server.

Here are example solutions for different languages, modified to be executed with visualizer. They all implement the same approach: place traps at all locations across the river.

You may modify and submit these example solutions.
Solutions in different languages are not equivalent due to different random number generators used, and may produce different results.

To run the tester with your solution, you should run:

java -jar Tester.jar -exec "<command>" -seed <seed>

Here, <command> is the command to execute your program, and <seed> is seed for test case generation. If your compiled solution is an executable file, the command will be the full path to it, for example, "C:\TopCoder\solution.exe" or "~/topcoder/solution". In case your compiled solution is to be run with the help of an interpreter, for example, if you program in Java, the command will be something like "java -cp C:\TopCoder Solution".

You can use

-vis

option to turn on visualization. It will create several png files, one per day of data and day of data, with rocks and fish routes marked.

You can print any debug information of your solution to standard error, and it will be forwarded to the standard out of the tester.