TLE in June cook off 2013 Attic Problem-C++

Why does TLE show up?? Following code is in C++ 4.3.2

#include<cstdio>
#include<cstdlib>
#include<cmath>
#include<string.h>

#define TMAX 1000007
#define PMAX 1000007

int main()
{
 long long T;
 long long i;
 long long length;
 long long memory;
 long long count=0;
 long long answer=0;
 scanf("%lld",&T);

 while(T--)
 {
  char P[PMAX]="";
  answer=0;
  scanf("%s",P);
  length=strlen(P);
  memory=0;
  for(i=0;i<length;)
  {
   count=0;

   if(P[i]=='.')
   {
    while(P[i++]=='.')
    count++;

    if(count>memory)
    {
     answer++;
     memory=count;
    }
   }
   else
   i++;

  }
  printf("%lld\n",answer);
 }

 return EXIT_SUCCESS;
}