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#include<bits/stdc++.h> using namespace std; int main() { int tt; cin >> tt; while (tt--) { int n, c, m; cin >> n >> c >> m; long long ans = n / c, cur = ans; while (cur >= m) { ans += cur / m; cur = (cur % m) + (cur / m); } cout << ans << '\n'; } return 0; }