Print Maximums

#!/bin/bash
max_x=
max_y=
while IFS= read -r line; do
  if [[ -z ${line} ]]; then
    printf '%s %s\n\n' ${max_x} ${max_y}
    max_x=
    max_y=
    continue
  fi
  read -r x y <<<${line}
  if [[ -z ${max_y} ]]; then
    max_x=${x}
    max_y=${y}
    continue
  fi
  if (( $(bc -l <<<"${y}>${max_y}") )); then
    max_x=${x}
    max_y=${y}
  fi
done
if [[ ! -z ${max_y} ]]; then
  printf '%s %s\n' ${max_x} ${max_y}
fi