Answer Posted / abdur rab

#include <stdio.h>

int get_digits ( int number )
{
int n_digits = 0;
while ( number ) {
n_digits++;
number = number / 10;
}

return ( n_digits );
}

int main ( int argc, char* argv [] )
{
int number = 789876;
int digits = 0;
int temp_number = 0;
int final_number = 0;
int counter = 0;

int start_point = 2;
int end_point = 5;

digits = get_digits ( number );

if ( ( start_point < end_point ) && ( end_point <=
digits ) ) {

temp_number = number;
if ( start_point - 1 ) final_number =
number / pow ( 10, ( digits - ( start_point - 1 ) ) );

counter = digits;
while ( temp_number ) {
if ( ( counter <= ( end_point ) )
&& ( counter >= ( start_point ) ) ) {
final_number *= 10;
final_number += (
temp_number % 10 );
}
temp_number /= 10;
counter--;
}
if ( digits - end_point ) {
final_number *= pow ( 10, ( digits -
end_point ) );
final_number += number % (int) (
pow ( 10, ( digits - end_point ) ) );
}
}

printf ( "\n Number: %d", number );
printf ( "\nFinal Number: %d", final_number );
printf ( "\nS_Pos: %d, E_Pos: %d", start_point,
end_point );

return ( 0 );

}

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