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DoubleListInt

Language: Layout:
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Compilation time: 0.42 sec, absolute running time: 0.15 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 0,6 sec 
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The Double Linked list is 
9 <--> 10 <--> 11 <--> 12 <--> 
The reverse is:
12 <--> 11 <--> 10 <--> 9 <--> 
The Double Linked list is 
9 <--> 10 <--> 11 <--> 15 <--> 11 <-->