How the return part is working in this

#1

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;

}

#2

here XY.compare(YX) returns 1 if XY>YX else -1 if XY<YX else 0.
the result is checked by if condition and depending on it 1 or 0 is returned

#3

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