เฉลยข้อที่ 4
จุดที่เลือก
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Z
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เริ่มต้น
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0
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A
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2
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4
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1
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D
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2
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4
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¥
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6
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5
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B
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4
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3
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6
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5
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E
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4
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6
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5
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6
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¥
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C
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6
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5
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6
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¥
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G
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6
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6
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7
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¥
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¥
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¥
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¥
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H
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6
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¥
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¥
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7
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7
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¥
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¥
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14
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¥
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¥
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¥
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¥
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¥
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¥
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F
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8
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10
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7
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7
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¥
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¥
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14
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¥
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¥
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¥
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¥
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¥
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L
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8
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10
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7
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10
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¥
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13
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¥
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¥
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¥
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¥
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K
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8
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10
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10
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11
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13
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9
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¥
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¥
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¥
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I
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10
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10
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11
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13
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¥
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9
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¥
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¥
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R
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10
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10
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11
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13
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17
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14
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J
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10
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11
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13
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17
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14
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M
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11
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13
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12
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17
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14
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¥
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N
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13
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12
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13
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14
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P
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13
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13
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14
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13
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O
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13
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14
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13
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Q
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14
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13
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T
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14
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21
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S
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16
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คำอธิบาย
ระยะทางที่สั้นที่สุดระหว่าง a ถึง z มีค่าเท่ากับ 16 |
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