String compare

Question

Hi

Why below code results into -32?

string s1={"Hello Sololearn"};
string s2={"Hello solo"};

cout << s1.compare(s2);

Answer 1

Vijay Raj Jain isn't S in s1 smaller than s in s2? That's why 83-115 =-32 is returned!

Answer 2

0 : if both strings are equal.
a value < 0 : if *this is shorter than str or, first character that doesn't match is smaller than str.
a value > 0 : if *this is longer than str or, first character that doesn't match is greater

Since s2<s1 so value returned is -32

Answer 3

So -5 may be

1. difference between number of characters difference in string
2. Difference between first mismatch character's ASCII value

Is above right?