回答編集履歴
1
訂正
test
CHANGED
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@@ -2,42 +2,54 @@
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2
2
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3
3
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```bash
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4
4
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5
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-
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5
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+
echo {0..4}+{0..4}+{0..4}+{0..4}|xargs -n1 -I@ sh -c 'echo $((@)) @'|tr '+' ' '|awk '/^5/&&$0=($2?"a"$2:"")($3?"b"$3:"")($4?"c"$4:"")($5?"d"$5:"")'|sed -E 's/([1234])([bcd])/\1,\2/g'|awk -F, '!$3'|sort
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6
6
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7
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-
a1,b
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7
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+
a1,b4
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8
8
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9
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-
a1,c
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9
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+
a1,c4
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10
10
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11
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-
a1,d
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11
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+
a1,d4
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12
12
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13
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-
a2,b
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13
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+
a2,b3
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14
14
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15
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-
a2,c
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15
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+
a2,c3
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16
16
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17
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-
a2,d
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17
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+
a2,d3
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18
18
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19
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-
a3,b
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19
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+
a3,b2
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20
20
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21
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-
a3,c
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21
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+
a3,c2
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22
22
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23
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-
a3,d
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23
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+
a3,d2
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24
24
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25
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-
b1
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25
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+
a4,b1
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26
26
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27
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-
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27
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+
a4,c1
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28
28
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29
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-
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29
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+
a4,d1
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30
30
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31
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-
b
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31
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+
b1,c4
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32
32
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33
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-
b
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33
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+
b1,d4
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34
34
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35
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-
b3
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35
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+
b2,c3
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36
36
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37
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-
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37
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+
b2,d3
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38
38
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39
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-
c2
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39
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+
b3,c2
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40
40
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41
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+
b3,d2
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42
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+
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43
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+
b4,c1
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44
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+
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45
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+
b4,d1
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46
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+
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47
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+
c1,d4
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48
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+
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49
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+
c2,d3
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50
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+
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41
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-
c3,d
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51
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+
c3,d2
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52
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+
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53
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+
c4,d1
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42
54
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43
55
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```
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