#include <iostream>
#include <math.h>
using namespace std;
int n,ile,t1,doba=86400, m, pudelka;
int main()
{
cin>>ile;
for (int i=0;i<ile;i++)
{
cin>>n>>m;
for (int j=0;j<n;j++)
{
int suma=0;
cin>>t1;
suma=doba/t1;
double floor (suma);
pudelka=suma/m;
double ceil(pudelka);
}
pudelka+=pudelka;
cout<<pudelka<<endl;
pudelka=0;
}
return 0;
}
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