Of course there is a pb
64000 is enougth for 256k input
my source is  there
Merci....
#include <iostream>
#include <math.h>
using namespace std;
int main()
{double nb;
float tableau[64000];
int pointeur=0;
 //freopen("1001.txt", "r", stdin);//to test my exemples
 while(cin>>nb)
 tableau[pointeur++]=sqrt(nb);
pointeur--;
for (int i=pointeur;i>=0;i--)    printf("%.4f\n",tableau[i]);
return 0;
}

Use "double" instead of "float" and you'll get AC ;)