카타 7급 Breaking chocolate problem

R

break_chocolate <- function (n, m) {
  max(0, m*n-1)
}

break_chocolate <- function (n, m) {
  if(n > m) {
    high = n
    low = m
  }
  else {
    high = m
    low = n
  }
  if(low < 1) return(0)
  (low-1) + low*(high-1)
}