/* According to my own summary, it is. The last number is calculated by myself anyway, and it should be over.
*/
# include & ltstdio.h & gt
# include & ltstring.h & gt
# Define ARRAY_LEN 100
The order of parameters when plastic is converted into string is: string is used to save the converted value, the value to be converted and the number of characters after conversion */char * itostr (char * s, int value, int * num).
{
int I = 0；
int modtmp = 0；
int tmp = value
int j = 0；
char ctmp =“0”；
* num = 0； /* After entering the function, rewrite it to 0 to prevent it from affecting the following */
/* Split integers into arrays */ while (0! = tmp)
{
modtmp = tmp % 10；
s[i++]= modtmp+' 0 '；
tmp = tmp/ 10；
}
s[I]= ' \ 0 '； /* Set the last one to 0 */
/* Because the converted value is flashback, the reverse direction */for (j = 0; j & ltI/2； j++)
{
ctmp = s[j]；
s[j]= s[I-j- 1]；
s[I-j- 1]= ctmp；
}
* num = I；
Return to s; }
char* fun(char a[]){
char * pTmp = a；
int odd num = 0； //Odd int eventnum = 0; //Even number
int total num = 0；
int I = 0；
char CSTR[20]= { 0 }； char * pcstr = cstr
int cnum = 0； /* Record how many characters there are after the integer is converted into a string */
int tmp = 0；
/* Record odd and even totals */for (; *pTmp！ = '\0'; ++pTmp)
{
tmp = * pTmp-' 0 '；
if(0 & lt； tmp & amp& amptmp & lt= 9)
{
if(tmp % 2 == 0)
{
even num++；
}
other
{
odd num++；
}
total num++；
}
other
{
Break; //Encountered a character that is not a number.
}
}
/* I can't think of a better way to construct three numbers into a string */it ostr (PC str, evenum,&; cnum)；
pcstr = pcstr+cnum；
iToStr(pcstr，oddNum，& ampcnum)；
pcstr = pcstr+cnum；
iToStr(pcstr，totalNum，& ampcnum)；
printf("%s \n "，CSTR)；
if (0 == strcmp(a，cstr)) {
/* If the calculated value is equal to itself, */
memcpy(a、cstr、strlen(CSTR))；
a[strlen(CSTR)]= ' \ 0 '；
Return to a;
}
other
{
Return of funds (CSTR);
}
}
void main(){
char a[ARRAY _ LEN]；
Printf ("Please enter a numeric string:");
int b = 0；
fgets(a，ARRAY_LEN，stdin)； //This will not cause overflow.
Printf ("the mysterious number is: %s\n", fun (a)); }