41 lines
937 B
Bash
Executable File
41 lines
937 B
Bash
Executable File
#!/usr/bin/env bash
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set -o errexit
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set -o nounset
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set -o pipefail
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if [[ "${TRACE-0}" == "1" ]]; then
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set -o xtrace
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fi
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INPUT="$1"
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main ()
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{
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IFS=' ' read -r -a times <<< "$(grep Time ${INPUT} | awk '{$1=""; print $0}')"
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IFS=' ' read -r -a distances <<< "$(grep Distance ${INPUT} | awk '{$1=""; print $0}')"
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declare -a winning_counts=()
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records="${#times[@]}"
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for ((i=0; i<records; i++)); do
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t_record="${times[${i}]}"
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d_record="${distances[${i}]}"
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for ((t=1; t<=t_record; t++)); do
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t_remaining=$((t_record-t))
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distance=$((t*t_remaining))
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if [[ ${distance} -gt ${d_record} ]]; then
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first_winning="${t}"
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last_winning=$((t_record-first_winning))
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winning=$((last_winning-first_winning+1))
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break
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fi
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done
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winning_counts+=("${winning}")
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done
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product=1
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for i in "${winning_counts[@]}"; do
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product=$((product*i))
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done
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echo "${product}"
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}
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main
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