EricTsengTy
/ pA.cpp
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August 14, 2021 10:14
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| #include <bits/stdc++.h> | |
| using namespace std; | |
| using ull = unsigned long long; | |
| ull f(ull n){ | |
| return 256743000 * n * n - 769715000 * n + 512972514; | |
| } | |
| int main(){ |