pe25

#include <stdio.h>
#include <string.h>

int main()
{
  char nbr[3][1000] = {0};
  int term = 2, i, n;
  nbr[0][0] = nbr[1][0] = 1;

  while (nbr[2][999] == 0)
  {
    n = 0;
    for (i=0; i!=1000; i++)
    {
      nbr[2][i] = nbr[0][i] + nbr[1][i] + n;
      n = nbr[2][i] - nbr[2][i] % 10;
      nbr[2][i] -= n;
      n /= 10;
    }

    memcpy(nbr[0],nbr[1],1000*sizeof(char));
    memcpy(nbr[1],nbr[2],1000*sizeof(char));

    term++;
  }

  printf("term = %d",term);
  return 0;
}