#include <iostream>
#include <string>
using namespace std;
int main ()
{
   string a = "Krokodil";
   cout << a.substr(5, 1) << endl;
   return 0;
}

#include <iostream>
using namespace std;
int main ()
{
   char a[] = "Krokodil";
   cout << a[5] << endl;
   return 0;
}

char a[]="asdfghjk";
printf("%c",a[2]);

int len;
int i = 123456789;
char buff[10];
itoa (i,buff,10);
len = strlen(buff);
printf("%c",buff[len-3]); //получим 6

int i = 123456789; //допустим мне надо 6
int out;
i = i/1000;
out = i%10;
printf("%i",out);

string test[15];

#define size 15
string test[size];

int size = 15;
string test[size];

int size = 15;
#define len size
string test[len];

int len=123;
string *c;
c = new string[len];