回答編集履歴
1
駅名を出現順に、乗降客数を3桁区切りで表示するバージョン追加
test
CHANGED
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@@ -37,3 +37,91 @@
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}
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```
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解決済になっていますけど、駅名を出現順に、乗降客数を3桁区切りで表示するバージョンを示しておきます。
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```bash
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#!/usr/bin/awk -f
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function putCommaAtEvery3Digits(input, output) {
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for (output = ""; input >= 1000; input = int(input / 1000)) {
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output = sprintf(",%03d", input % 1000) output;
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}
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output = input output;
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return output;
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}
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function registerStation(station, stationIndex) {
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for (stationIndex = 0; stationIndex < stationCount; stationIndex++) {
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if (stationList[stationIndex] == station) {
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return stationIndex;
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}
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}
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stationList[stationCount++] = station;
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return stationCount;
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}
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{
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station = $1;
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registerStation(station);
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passengers = $2;
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gsub(/,/, "", passengers);
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passengersAtStation[station] += passengers;
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}
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END {
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for (stationIndex = 0; stationIndex < stationCount; stationIndex++) {
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station = stationList[stationIndex];
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printf("%s\t%s\n", station, putCommaAtEvery3Digits(passengersAtStation[station]));
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}
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}
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```
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