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  1. x <- as.integer(runif(10000) * 5)
  2. y <- as.integer(runif(10000) * 5)
  3. tapply(rep(1, 10000), list(x, y), length)
  4.  
Success #stdin #stdout 0.47s 24152KB
stdin
Standard input is empty
stdout
    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