#include <iostream>
#include <cmath>
using namespace std;
 
int main()
{
    int n;
    cin >> n;
    float tablica[n];
 
    for (int i = 0; i < n; i++) {
        tablica[i] = 0;
    }
    for (int j = 0; j < n; j++) {
        int liczba, ciasteczka;
        float czas, suma;
        cin >> liczba >> ciasteczka;
        for (int i = 0; i < liczba; i++) {
            czas = 86400;
            suma = 0;
            int var;
            cin >> var;
            czas = czas / (var * ciasteczka);
            tablica[j] += czas;
        }
    }
    for (int i = 0; i < n; i++) {
        cout << ceil(tablica[i]) << endl;
    }
}
 

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

MQozIDM1NgoxMjMKMzI5OTkKMTAxMDE=

1
3 356
123
32999
10101