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OI-codes/Luogu/P8443/P8443.cpp

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#include <iostream>
#include <cmath>
using std::cin;
using std::cout;
const char endl = '\n';
int t;
int main() {
std::ios::sync_with_stdio(false);
cin.tie(nullptr);
cin >> t;
while (t--) {
long long l, r, x;
cin >> l >> r >> x;
int a = static_cast<long long>(std::floor(static_cast<long double>(l) / x)),
b = static_cast<long long>(std::floor(static_cast<long double>(r) / x));
cout << (a == b ? a : 1) << endl;
}
return 0;
}