結果
問題 | No.972 選び方のスコア |
ユーザー | Pachicobue |
提出日時 | 2020-01-18 17:13:29 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 58 ms / 2,000 ms |
コード長 | 5,957 bytes |
コンパイル時間 | 2,104 ms |
コンパイル使用メモリ | 209,060 KB |
実行使用メモリ | 6,528 KB |
最終ジャッジ日時 | 2024-06-27 20:40:50 |
合計ジャッジ時間 | 5,169 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 57 ms
6,400 KB |
testcase_01 | AC | 58 ms
6,400 KB |
testcase_02 | AC | 56 ms
6,144 KB |
testcase_03 | AC | 28 ms
5,376 KB |
testcase_04 | AC | 57 ms
6,528 KB |
testcase_05 | AC | 55 ms
6,400 KB |
testcase_06 | AC | 58 ms
6,528 KB |
testcase_07 | AC | 43 ms
5,632 KB |
testcase_08 | AC | 43 ms
6,528 KB |
testcase_09 | AC | 40 ms
6,272 KB |
testcase_10 | AC | 43 ms
6,400 KB |
testcase_11 | AC | 44 ms
6,400 KB |
testcase_12 | AC | 44 ms
6,528 KB |
testcase_13 | AC | 45 ms
6,528 KB |
testcase_14 | AC | 44 ms
6,400 KB |
testcase_15 | AC | 46 ms
6,400 KB |
testcase_16 | AC | 46 ms
6,528 KB |
testcase_17 | AC | 46 ms
6,528 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 56 ms
6,528 KB |
testcase_20 | AC | 53 ms
6,400 KB |
testcase_21 | AC | 54 ms
6,528 KB |
testcase_22 | AC | 54 ms
6,272 KB |
testcase_23 | AC | 56 ms
6,528 KB |
testcase_24 | AC | 55 ms
6,528 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 2 ms
5,376 KB |
testcase_27 | AC | 2 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
testcase_31 | AC | 2 ms
5,376 KB |
testcase_32 | AC | 2 ms
5,376 KB |
testcase_33 | AC | 2 ms
5,376 KB |
testcase_34 | AC | 2 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> // created [2020/01/18] 17:06:43 #pragma GCC diagnostic ignored "-Wsign-compare" #pragma GCC diagnostic ignored "-Wsign-conversion" using i32 = int32_t; using i64 = int64_t; using u32 = uint32_t; using u64 = uint64_t; using uint = unsigned int; using usize = std::size_t; using ll = long long; using ull = unsigned long long; using ld = long double; template<typename T, usize n> using arr = T (&)[n]; template<typename T, usize n> using c_arr = const T (&)[n]; template<typename T> constexpr T popcount(const T u) { return u ? static_cast<T>(__builtin_popcountll(static_cast<u64>(u))) : static_cast<T>(0); } template<typename T> constexpr T log2p1(const T u) { return u ? static_cast<T>(64 - __builtin_clzll(static_cast<u64>(u))) : static_cast<T>(0); } template<typename T> constexpr T msbp1(const T u) { return log2p1(u); } template<typename T> constexpr T lsbp1(const T u) { return __builtin_ffsll(u); } template<typename T> constexpr T clog(const T u) { return u ? log2p1(u - 1) : static_cast<T>(u); } template<typename T> constexpr bool ispow2(const T u) { return u and (static_cast<u64>(u) & static_cast<u64>(u - 1)) == 0; } template<typename T> constexpr T ceil2(const T u) { return static_cast<T>(1) << clog(u); } template<typename T> constexpr T floor2(const T u) { return u == 0 ? static_cast<T>(0) : static_cast<T>(1) << (log2p1(u) - 1); } template<typename T> constexpr bool btest(const T mask, const usize ind) { return static_cast<bool>((static_cast<u64>(mask) >> ind) & static_cast<u64>(1)); } template<typename T> void bset(T& mask, const usize ind) { mask |= (static_cast<T>(1) << ind); } template<typename T> void breset(T& mask, const usize ind) { mask &= ~(static_cast<T>(1) << ind); } template<typename T> void bflip(T& mask, const usize ind) { mask ^= (static_cast<T>(1) << ind); } template<typename T> void bset(T& mask, const usize ind, const bool b) { (b ? bset(mask, ind) : breset(mask, ind)); } template<typename T> constexpr T bcut(const T mask, const usize ind) { return ind == 0 ? static_cast<T>(0) : static_cast<T>((static_cast<u64>(mask) << (64 - ind)) >> (64 - ind)); } template<typename T> bool chmin(T& a, const T& b) { return (a > b ? a = b, true : false); } template<typename T> bool chmax(T& a, const T& b) { return (a < b ? a = b, true : false); } constexpr unsigned int mod = 1000000007; template<typename T> constexpr T inf_v = std::numeric_limits<T>::max() / 4; template<typename Real> constexpr Real pi_v = Real{3.141592653589793238462643383279502884}; auto mfp = [](auto&& f) { return [=](auto&&... args) { return f(f, std::forward<decltype(args)>(args)...); }; }; template<typename T> T in() { T v; return std::cin >> v, v; } template<typename T, typename Uint, usize n, usize i> T in_v(typename std::enable_if<(i == n), c_arr<Uint, n>>::type) { return in<T>(); } template<typename T, typename Uint, usize n, usize i> auto in_v(typename std::enable_if<(i < n), c_arr<Uint, n>>::type& szs) { const usize s = (usize)szs[i]; std::vector<decltype(in_v<T, Uint, n, i + 1>(szs))> ans(s); for (usize j = 0; j < s; j++) { ans[j] = in_v<T, Uint, n, i + 1>(szs); } return ans; } template<typename T, typename Uint, usize n> auto in_v(c_arr<Uint, n> szs) { return in_v<T, Uint, n, 0>(szs); } template<typename... Types> auto in_t() { return std::tuple<std::decay_t<Types>...>{in<Types>()...}; } struct io_init { io_init() { std::cin.tie(nullptr), std::ios::sync_with_stdio(false); std::cout << std::fixed << std::setprecision(20); } void clear() { std::cin.tie(), std::ios::sync_with_stdio(true); } } io_setting; template<typename T> int out(const T& v) { return std::cout << v, 0; } template<typename T> int out(const std::vector<T>& v) { for (usize i = 0; i < v.size(); i++) { if (i > 0) { std::cout << ' '; } out(v[i]); } return std::cout << "\n", 0; } template<typename T1, typename T2> int out(const std::pair<T1, T2>& v) { return out(v.first), std::cout << ' ', out(v.second), 0; } template<typename T, typename... Args> int out(const T& v, const Args... args) { return out(v), std::cout << ' ', out(args...), 0; } template<typename... Args> int outln(const Args... args) { return out(args...), std::cout << '\n', 0; } template<typename... Args> void outel(const Args... args) { return out(args...), std::cout << std::endl, 0; } # define SHOW(...) static_cast<void>(0) constexpr ull TEN(const usize n) { return n == 0 ? 1ULL : TEN(n - 1) * 10ULL; } template<typename T, typename Uint, usize n, usize i> auto make_v(typename std::enable_if<(i == n), c_arr<Uint, n>>::type, const T& v = T{}) { return v; } template<typename T, typename Uint, usize n, usize i> auto make_v(typename std::enable_if<(i < n), c_arr<Uint, n>>::type szs, const T& v = T{}) { const usize s = (usize)szs[i]; return std::vector<decltype(make_v<T, Uint, n, i + 1>(szs, v))>(s, make_v<T, Uint, n, i + 1>(szs, v)); } template<typename T, typename Uint, usize n> auto make_v(c_arr<Uint, n> szs, const T& t = T{}) { return make_v<T, Uint, n, 0>(szs, t); } int main() { const auto N = in<int>(); auto a = in_v<ll>({N}); std::sort(a.begin(), a.end(), std::greater<ll>{}); auto s = a; for (int i = 1; i < N; i++) { s[i] += s[i - 1]; } auto sum = [&](const int l, const int r) { return s[r - 1] - (l == 0 ? 0LL : s[l - 1]); }; ll ans = 0; for (int i = 1; i < N - 1; i++) { const ll m = a[i]; int inf = 0, sup = std::min(i, N - i - 1) + 1; // a[j-1]+a[i+j] >= 2*m while (sup - inf > 1) { const int mid = (inf + sup) / 2; (a[mid - 1] + a[i + mid] >= 2 * m ? inf : sup) = mid; } const int l = inf; const ll score = sum(0, l) + sum(i + 1, i + 1 + l) - m * (2 * l); chmax(ans, score); } outln(ans); return 0; }