C-language small function--find the longest number of __ function

Function Prototypes:
Unsignedint Continumax (char** poutputstr, char* intputstr)

Input parameters:
char* intputstr input string;

Output parameters:
char** Poutputstr: The longest consecutive number string, if the length of the longest serial number string is 0, should return an empty string; If the input string is empty, you should return an empty string;
Here is the code that you implemented

#include <stdio.h> #include <Windows.h> #include <ctype.h> int Countmax (char *outputstr, char*
    INTPUTSTR) {Char *in = intputstr, *out = Outputstr, *temp, *final;
    int count = 0, maxlen = 0; while (*in!= ' ") {if (*in >= ' 0 ' &&*in <= ' 9 ') {for (temp = in; *in > = ' 0 ' && *in <= ' 9 ';
                in++) {count++;
                printf ("*in:%c", *in);
            printf ("Count%d\n", count);
            } else {in++;
        Count = 0;
            } if (MaxLen < count) {MaxLen = count;
            Count = 0;
        final = temp;;
        for (int i = 0; i < MaxLen; i++) {*out = *final;
        out++;
    final++;
    } *out = ' I ';
return maxlen;
    int main () {char *in = ' as2132asd54sa10322 ';
    Char out[100];

    int Len;
    Len = Countmax (out,in); Printf("%d%s", len,out);
    System ("pause");
return 0; }