#!/usr/bin/env bash

set -o errexit
set -o nounset
set -o pipefail
if [[ "${TRACE-0}" == "1" ]]; then
  set -o xtrace
fi

cd "$(dirname "$0")"

INPUT="$1"

main ()
{
  time_record=$(grep Time "${INPUT}" | cut -d : -f 2 | tr -d ' ')
  distance_record=$(grep Distance "${INPUT}" | cut -d : -f 2 | tr -d ' ')
  for ((t=1; t<time_record; t++)); do
    t_remaining=$((time_record-t))
    distance=$((t*t_remaining))
    if [[ ${distance} -gt ${distance_record} ]]; then
      first_winning="${t}"
      last_winning=$((time_record-first_winning))
      winning=$((last_winning-first_winning+1))
      break
    fi
  done
  echo "${winning}"
}

main