Biggest number from array

#1

sir can you explain me how to sort array lexicographically

#2

Lexicographically is the dictionary order,and in this question you aren’t supposed to do that.
You need to use your own comparator function. You want me to share the code?

#3

No sir I don’t want code actually i am not getting how to sort lexicographically array so plz tell me that how to approach to solve it

#4

Okay the comparator function looks like this

int myCompare(string X, string Y)
{
    // first append Y at the end of X
    string XY = X.append(Y);

    // then append X at the end of Y
    string YX = Y.append(X);

    // Now see which of the two formed numbers is greater
    return XY.compare(YX) > 0 ? 1: 0;
}