Sha256: b91c9ba82662d1e644f3266b30554f347d4931813f632a7a8728a8bcfd80bfd4

Contents?: true

Size: 482 Bytes

Versions: 219

Compression:

Stored size: 482 Bytes

Contents

pascals_triangle <- function(n) {

  if (n == 0) {
    return(list())
  }
  else if (n == 1) {
    return(list(1))
  }
  else if (n == 2) {
    return(list(1, c(1, 1)))
  }
  else if (n >= 3) {
    triangle <- list(1, c(1, 1))
    for (x in 3:n) {
      row <- rep(1, x)
      for (i in 2:(x - 1)) {
        row[i] <- sum(triangle[[x - 1]][(i - 1):i])
      }
      triangle[[x]] <- row
    }
    return(triangle)
  }
  else {
    stop("argument n needs to be an integer")
  }
  
}

Version data entries

219 entries across 219 versions & 1 rubygems

Version Path
trackler-2.2.1.180 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.179 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.178 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.177 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.176 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.175 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.174 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.173 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.172 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.171 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.170 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.169 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.167 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.166 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.165 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.164 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.163 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.162 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.161 tracks/r/exercises/pascals-triangle/example.R
trackler-2.2.1.160 tracks/r/exercises/pascals-triangle/example.R