# include & ltcstdio & gt
# include & ltcstdlib & gt
# include & ltiostream & gt
# include & lt string & gt
Use namespace std
//Get integer digits
Integer number (integer x)
{
int sum = 1;
for(int I = x; (i/= 10)>0; sum++);
Returns the sum;
}
void Int2Str(int a,char sz[])
{
//Required number
int num = a;
//cycle length
int length = digit(a);
//digits
Int num_digit = length;
Int prefix;
for(int I = 0; I < length; i++)
{
Num_digit = digit (number);
Pre_num_digit = number;
int m = 1;
int n = 1;
int count = 0;
for(; num _ digit & gt 1; num_digit -)
{
m * = 10;
n * = 10;
}
m = num/m;
num-= n * m;
SZ[I]= m+48;
count = pre _ num _ digit-digit(num)- 1;
while(count & gt; 0)
{
SZ[++ I]= 48;
count-;
}
}
SZ[I]= ' \ 0 ';
}
void main()
{
char SZ[ 100];
Int2Str(7000456,SZ);
cout & lt& ltsz & lt& ltendl
System ("suspended");
}
//I wrote an integer to string, which can be converted into a signed integer.
void itostr(int n,char s[])
{
int i,sign
if((sign = n)& lt; 0)n =-n;
I = 0;
do
{
s[i++]= n % 10+' 0 ';
}while ( (n/= 10)>0);
if(sign & lt; 0)s[i++]= '-';
s[I]= ' \ 0 ';
//Here is the string inversion.
char * p = s;
char * q = s+strlen(s)- 1;
char t;
while(p & lt; Q)
{
t = * p;
* p = * q;
* q = t;
p++;
q-;
}