Doubt in a quiz question

#1

Hello, this is the question in which I am facing problem. I just want to know how the comparator will work and how the strings are passed as s1 and s2 from vector ?

Given the following code snippet :

bool comp(string s1, string s2)
{
if(s1.length() < s2.length())
return 1;
else if(s1.length() > s2.length())
return 0;
else return s1 < s2;
}

vector< string > data = {“b”, “a”, “c”, “abc”, “bca”, “xy”};
sort(data.begin(), data.end(), comp);
for(string item : data)
cout << item << " ";

Choose the correct output :

#2

Hello @yashsharma4304 in this comparator function int the first if else /we want to sort it in the descending order on the basis of their lengths.
and if bydefault the length of both the strings are same then we will sort them on the basis of the first letter.
if you have any other doubt you can ask here:
Happy Learning!!

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#3

ok thanks for your support. It means alot for me :slightly_smiling_face:

#4

Hello @yashsharma4304 happy to help you!
you can now mark this doubt as resolved.
Happy Learning!!

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#5

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