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25 lines
560 B
R
Executable File
25 lines
560 B
R
Executable File
#!/usr/bin/env Rscript
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data <- readLines("stdin")
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cleaned <- gsub(" $", "", gsub("^[^0-9-]+", "", gsub("[^0-9-]+", " ", data)))
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tc <- textConnection(cleaned)
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input <- read.csv(tc, header=FALSE, sep=" ")
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close(tc)
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perm <- order(rowSums(abs(input[,7:9])), rowSums(abs(input[,4:6])))
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print(perm[1] - 1)
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for (i in 1:100) {
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# Update positions, speeds
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input[,4:6] <- input[,4:6] + input[,7:9]
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input[,1:3] <- input[,1:3] + input[,4:6]
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dups <- !(duplicated(input[,1:3]) | duplicated(input[,1:3], fromLast=TRUE))
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input <- input[dups,]
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}
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print(nrow(input))
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