OJ Board

Thank you much ! now it's working

I can't find any bugs... :(
Can anybody help me ?
[cpp]
#include <stdio.h>
#include <math.h>
#include <stdlib.h>

#define M_PI 3.1415926535897932384626433832795

struct my_compl
{ double real,imag; };

double a,b,n;
my_compl roots[101];

double sqr(double arg)
{
return arg*arg;
}

int sort_func ...