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- #include <bits/stdc++.h>
- #define rtn return 0
- #define ctn continue
- #define eb(x) emplace_back(x)
- #define all(a) a.begin(), a.end()
- using namespace std;
- typedef pair <int, int> pii;
- typedef vector <int> vi;
- typedef vector <pii> vpii;
- typedef vector <vi> vvi;
- typedef set <int> si;
- typedef set <pii> stpii;
- typedef long long ll;
- typedef vector <ll> vll;
- ll ceil(ll a, ll b) {
- return a / b + (a % b != 0);
- }
- ll pow_(ll a, ll b) {
- ll ans = 1;
- while (b--)
- ans *= a;
- return ans;
- }
- int main() {
- cin.tie(0); cout.tie(0); ios::sync_with_stdio(0);
- #ifndef ONLINE_JUDGE
- freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout);
- #endif // ONLINE_JUDGE
- }
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