9 lines
207 B
Bash
9 lines
207 B
Bash
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#!/usr/bin/env bash
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join -1 2 -2 2 \
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<( awk '{print $2}' input.txt | sort -n | uniq -c ) \
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<( awk '{print $1}' input.txt | sort -n | uniq -c ) |
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awk '{print $1 * $2 * $3 }' |
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paste -s -d "+" |
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bc
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