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- #include<bits/stdc++.h>
- using namespace std;
- using ll = long long;
- #define pb emplace_back
- #define AI(i) begin(i), end(i)
- template<class T> bool chmin(T &a, T b) { return b < a ? (a = b, true) : false; }
- template<class T> bool chmax(T &a, T b) { return a < b ? (a = b, true) : false; }
- #ifdef KEV
- #define DE(args...) kout("[ " + string(#args) + " ] = ", args)
- void kout() { cerr << endl; }
- template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
- template<class T> void debug(T L, T R) { while (L != R) cerr << *L << " \n"[next(L) == R], ++L; }
- #else
- #define DE(...) 0
- #define debug(...) 0
- #endif
- const int MAX_N = 300010;
- int32_t main() {
- ios_base::sync_with_stdio(0), cin.tie(0);
- }
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