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x <- as.integer(runif(10000) * 5)
y <- as.integer(runif(10000) * 5)
tapply(rep(1, 10000), list(x, y), length)

Success #stdin #stdout 0.47s 24152KB

stdin

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Standard input is empty

stdout

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    0   1   2   3   4
0 374 398 406 393 429
1 398 391 374 392 370
2 365 431 393 394 371
3 422 370 418 434 422
4 413 420 397 421 404

https://ideone.com/VShvuM

language:

R (R 3.5.2)

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public

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