I can't understand what's wrong with this C++ code:

unsigned n, m, index = 0;
cin >> n >> m;

char *seq = new char[n];

for(int i = 0; i < n; ++i)
cin >> seq[i];

for(int i = m; i < n; ++i)
cout << seq[i];

for(int i = n-m; i < 10; ++i)
cout << seq[index++];

You can take reminder (n%m) and write numbers from reminder+1 until 10.

For example,use my AC code(C)

#include <stdio.h>
int N,M;
int a[1000];
int i,j,z;
int main()
{
 scanf("%d%d",&N,&M);
 for (i=0;i<N;i++)
 {
   scanf("%d",&a[i]);
  }
  z=M%N;
  N--;
  j=z;
  i=0;
  while (i<10)
  {
    printf("%d",a[z]);
  if (z==N)
  z=0;
  else z++;

  i++;

  }
  printf("\n");
return 0;
}