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Suppose you have some List of S List of Strings called List and a String prefix. Write a method that removes all the Strings from list that begin with prefix. public void removePrefixStrings(List-String- list, String prefix) 7. What is the time complexity of this algorithm?

Respuesta :

Answer:

public void removePrefixStrings(List<String> list , String prefix) {

if(list==null || list.size()==0)

return;

for(int i=0; i<list.size();) {

if(list.get(i).startsWith(prefix))

list.remove(i);

else

++i;  

}  

}  

Time Complexity: If the prefix is the same as String length, Then finding all prefix match will take n *n = n2

Then removal is also n  

So the total time complexity is O(n3)