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巴山楚水凄凉地，二十三年弃置身。

the only number in the range that is missing from the array.

花近高楼伤客心，万方多难此登临。

list.

车辚辚，马萧萧，行人弓箭各在腰。

Conway in 1970.

锦城丝管日纷纷，半入江风半入云。

Write a function to **delete a node** in a singly-linked list.

细草微风岸，危樯独夜舟。