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mergeLinnked.cpp
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68 lines (48 loc) · 1.07 KB
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{
NodeList *root1 ;
NodeList *root2 ;
if(root1==NULL)
{
return root2 ;
}
if(root2==NULL)
return root1 ;
NodeList *head=NULL;
NodeList*tail=NULL;
while(root1&&root2)
{
if(root1->val<=root2->val)
{
if(head==NULL)
{
head=root1;
tail=root1 ;
}
else{
tail->next=root1 ;
tail=root1 ;
}
root1=root1->next ;
}
else{
if(head==NULL)
{
head=root2;
tail=root2 ;
}
else{
tail->next=root2 ;
tail=root2 ;
}
root2=root2->next ;
}
}
if(root1)
{
tail->next=root1 ;
}
if(root2)
{
tail->next=root2 ;
}
}