Submission #968585

#TimeUsernameProblemLanguageResultExecution timeMemory
968585marvinthangMeasures (CEOI22_measures)C++17
100 / 100
126 ms32964 KiB
/************************************* * author: marvinthang * * created: 23.04.2024 22:44:57 * *************************************/ #include <bits/stdc++.h> using namespace std; #define fi first #define se second #define left ___left #define right ___right #define TIME (1.0 * clock() / CLOCKS_PER_SEC) #define MASK(i) (1LL << (i)) #define BIT(x, i) ((x) >> (i) & 1) #define __builtin_popcount __builtin_popcountll #define ALL(v) (v).begin(), (v).end() #define REP(i, n) for (int i = 0, _n = (n); i < _n; ++i) #define REPD(i, n) for (int i = (n); i-- > 0; ) #define FOR(i, a, b) for (int i = (a), _b = (b); i < _b; ++i) #define FORD(i, b, a) for (int i = (b), _a = (a); --i >= _a; ) #define FORE(i, a, b) for (int i = (a), _b = (b); i <= _b; ++i) #define FORDE(i, b, a) for (int i = (b), _a = (a); i >= _a; --i) #define scan_op(...) istream & operator >> (istream &in, __VA_ARGS__ &u) #define print_op(...) ostream & operator << (ostream &out, const __VA_ARGS__ &u) #ifdef LOCAL #include "debug.h" #else #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); } #define DB(...) 23 #define db(...) 23 #define debug(...) 23 #endif template <class U, class V> scan_op(pair <U, V>) { return in >> u.first >> u.second; } template <class T> scan_op(vector <T>) { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; } template <class U, class V> print_op(pair <U, V>) { return out << '(' << u.first << ", " << u.second << ')'; } template <size_t i, class T> ostream & print_tuple_utils(ostream &out, const T &tup) { if constexpr(i == tuple_size<T>::value) return out << ")"; else return print_tuple_utils<i + 1, T>(out << (i ? ", " : "(") << get<i>(tup), tup); } template <class ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(out, u); } template <class Con, class = decltype(begin(declval<Con>()))> typename enable_if <!is_same<Con, string>::value, ostream&>::type operator << (ostream &out, const Con &con) { out << '{'; for (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; } // end of template const long long INF = 1e18; int n, m, d; struct Node { long long res, min_val, max_val; int cnt; Node(): res(0), min_val(INF), max_val(-INF), cnt(0) {} Node(long long val): res(0), min_val(val), max_val(val), cnt(1) {} Node operator + (const Node &ot) const { Node ans; ans.res = max({res, ot.res, ot.max_val + 1LL * cnt * d - min_val}); ans.min_val = min(min_val, ot.min_val + 1LL * cnt * d); ans.max_val = max(max_val, ot.max_val + 1LL * cnt * d); ans.cnt = cnt + ot.cnt; return ans; } }; void process(void) { cin >> n >> m >> d; m += n; vector <int> a(m); cin >> a; vector <int> order(m); iota(ALL(order), 0); sort(ALL(order), [&] (int i, int j) { return a[i] < a[j]; }); vector <int> pos(m); REP(i, m) pos[order[i]] = i; vector <Node> st(m * 4 + 23); auto update = [&] (auto &&self, int i, int l, int r, int p, int v) -> void { if (r - l == 1) { st[i] = Node(-v); return; } int m = (l + r) / 2; if (p < m) self(self, i << 1, l, m, p, v); else self(self, i << 1 | 1, m, r, p, v); st[i] = st[i << 1] + st[i << 1 | 1]; }; REP(i, m) { update(update, 1, 0, m, pos[i], a[i]); if (i >= n) cout << st[1].res / 2 << (st[1].res & 1 ? ".5" : "") << ' '; } } int main(void) { ios_base::sync_with_stdio(false); cin.tie(nullptr); // cout.tie(nullptr); file("measures"); // int t; cin >> t; while (t--) process(); // cerr << "Time elapsed: " << TIME << " s.\n"; return (0^0); }

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:30:61: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:92:2: note: in expansion of macro 'file'
   92 |  file("measures");
      |  ^~~~
Main.cpp:30:94: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                                                       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:92:2: note: in expansion of macro 'file'
   92 |  file("measures");
      |  ^~~~
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