text: If there is one element in array , store it in current node of segment tree and return
code: if ( ss == se ) : NEW_LINE INDENT if ( isArmstrong ( arr [ ss ] ) ) : NEW_LINE INDENT st [ si ] = arr [ ss ] NEW_LINE DEDENT else : NEW_LINE INDENT st [ si ] = - 1 NEW_LINE DEDENT return st [ si ] NEW_LINE DEDENT