If you enter a four-digit positive integer, call the function (custom function) to output the maximum number of integers.

/*
Input a four-digit positive integer at any time. Call the function (custom function) to output the numbers of All integers.
The maximum number of characters.
*/
# Include <stdio. h>
Int numb (int)
{
Int I = 0, j = 0, sum = 0, B [4];
B [0] = A % 10;
B [1] = A/10% 10;
B [2] = A/100% 10;
B [3] = A/1000;

For (I = 0; I <4; I ++)
{
For (j = 0; j <3-I; j ++)
{
If (B [J]> B [J + 1])
{
B [4] = B [J];
B [J] = B [J + 1];
B [J + 1] = B [4];
}
}
Sum = (sum + B [3-I]) * 10;

}
Return sum/10;

}

Void main ()
{
Int;
Printf ("enter a four-digit positive integer :");
Scanf ("% d", & );
Printf ("% d the maximum number of digits is % d \ n", A, numb ());
}

If you enter a four-digit positive integer, call the function (custom function) to output the maximum number of integers.