結果
問題 | No.463 魔法使いのすごろく🎲 |
ユーザー | satanic |
提出日時 | 2016-12-15 02:52:51 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 7,776 bytes |
コンパイル時間 | 1,620 ms |
コンパイル使用メモリ | 128,756 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-05-07 14:42:55 |
合計ジャッジ時間 | 2,465 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 | WA | - |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | AC | 1 ms
5,376 KB |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | AC | 2 ms
5,376 KB |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | AC | 2 ms
5,376 KB |
ソースコード
// need #include <iostream> #include <algorithm> // data structure #include <bitset> //#include <list> #include <map> #include <queue> #include <set> #include <stack> #include <string> #include <utility> #include <vector> //#include <array> //#include <tuple> #include <unordered_map> #include <unordered_set> //#include <complex> //#include <deque> // stream //#include <istream> //#include <sstream> //#include <ostream> // etc #include <cassert> #include <functional> #include <iomanip> //#include <typeinfo> #include <chrono> #include <random> #include <cfenv> #define INIT std::ios::sync_with_stdio(false);std::cin.tie(0); #define VAR(type, ...)type __VA_ARGS__;MACRO_VAR_Scan(__VA_ARGS__); template<typename T> void MACRO_VAR_Scan(T& t) { std::cin >> t; } template<typename First, typename...Rest>void MACRO_VAR_Scan(First& first, Rest&...rest) { std::cin >> first; MACRO_VAR_Scan(rest...); } #define VEC_ROW(type, n, ...)std::vector<type> __VA_ARGS__;MACRO_VEC_ROW_Init(n, __VA_ARGS__); for(int i=0; i<n; ++i){MACRO_VEC_ROW_Scan(i, __VA_ARGS__);} template<typename T> void MACRO_VEC_ROW_Init(int n, T& t) { t.resize(n); } template<typename First, typename...Rest>void MACRO_VEC_ROW_Init(int n, First& first, Rest&...rest) { first.resize(n); MACRO_VEC_ROW_Init(n, rest...); } template<typename T> void MACRO_VEC_ROW_Scan(int p, T& t) { std::cin >> t[p]; } template<typename First, typename...Rest>void MACRO_VEC_ROW_Scan(int p, First& first, Rest&...rest) { std::cin >> first[p]; MACRO_VEC_ROW_Scan(p, rest...); } #define OUT(d) std::cout<<d; #define FOUT(n, d) std::cout<<std::fixed<<std::setprecision(n)<<d; #define SOUT(n, c, d) std::cout<<std::setw(n)<<std::setfill(c)<<d; #define SP std::cout<<" "; #define TAB std::cout<<"\t"; #define BR std::cout<<"\n"; #define ENDL std::cout<<std::endl; #define FLUSH std::cout<<std::flush; #define VEC(type, c, n) std::vector<type> c(n);for(auto& i:c)std::cin>>i; #define MAT(type, c, m, n) std::vector<std::vector<type>> c(m, std::vector<type>(n));for(auto& r:c)for(auto& i:r)std::cin>>i; #define ALL(a) (a).begin(),(a).end() #define FOR(i, a, b) for(int i=(a);i<(b);++i) #define RFOR(i, a, b) for(int i=(b)-1;i>=(a);--i) #define REP(i, n) for(int i=0;i<int(n);++i) #define RREP(i, n) for(int i=(n)-1;i>=0;--i) #define FORLL(i, a, b) for(ll i=ll(a);i<ll(b);++i) #define RFORLL(i, a, b) for(ll i=ll(b)-1;i>=ll(a);--i) #define REPLL(i, n) for(ll i=0;i<ll(n);++i) #define RREPLL(i, n) for(ll i=ll(n)-1;i>=0;--i) #define PAIR std::pair<int, int> #define PAIRLL std::pair<ll, ll> #define IN(a, x, b) (a<=x && x<b) #define SHOW(d) {std::cerr << #d << "\t:" << d << "\n";} #define SHOWVECTOR(v) {std::cerr << #v << "\t:";for(const auto& xxx : v){std::cerr << xxx << " ";}std::cerr << "\n";} #define SHOWVECTOR2(v) {std::cerr << #v << "\t:\n";for(const auto& xxx : v){for(const auto& yyy : xxx){std::cerr << yyy << " ";}std::cerr << "\n";}} #define SHOWPAIR(p) {std::cerr << #p << "\t:(" << p.first << ",\t" << p.second << ")\n";} #define SHOWPAIRVECTOR2(v) {std::cerr << #v << "\t:\n";for(const auto& xxx : v){for(const auto& yyy : xxx){std::cerr<<'('<<yyy.first<<", "<<yyy.second<<") ";}std::cerr << "\n";}} #define SHOWPAIRVECTOR(v) {for(const auto& xxx:v){std::cerr<<'('<<xxx.first<<", "<<xxx.second<<") ";}std::cerr<<"\n";} #define SHOWQUEUE(a) {std::queue<decltype(a.front())> tmp(a);std::cerr << #a << "\t:";for(int i=0; i<static_cast<int>(a.size()); ++i){std::cerr << tmp.front() << "\n";tmp.pop();}std::cerr << "\n";} template<typename T> inline T CHMAX(T& a, const T b) { return a = (a < b) ? b : a; } template<typename T> inline T CHMIN(T& a, const T b) { return a = (a > b) ? b : a; } #define EXCEPTION(msg) throw std::string("Exception : " msg " [ in ") + __func__ + " : " + std::to_string(__LINE__) + " lines ]" #define TRY(cond, msg) try {if (cond) EXCEPTION(msg);}catch (std::string s) {std::cerr << s << std::endl;} void CHECKTIME(std::function<void()> f) { auto start = std::chrono::system_clock::now(); f(); auto end = std::chrono::system_clock::now(); auto res = std::chrono::duration_cast<std::chrono::nanoseconds>((end - start)).count(); std::cerr << "[Time:" << res << "ns (" << res / (1.0e9) << "s)]\n"; } #define int ll using ll = long long; using ull = unsigned long long; constexpr int INFINT = 1 << 30; // 1.07x10^ 9 constexpr int INFINT_LIM = (1LL << 31) - 1; // 2.15x10^ 9 constexpr ll INFLL = 1LL << 60; // 1.15x10^18 constexpr ll INFLL_LIM = (1LL << 62) - 1 + (1LL << 62); // 9.22x10^19 constexpr double EPS = 1e-7; constexpr int MOD = 1000000007; constexpr double PI = 3.141592653589793238462643383279; struct LUinfo { std::vector<double> value; std::vector<int> index; }; // O( n^3 ), Gaussian forward elimination LUinfo LU_decomposition(std::vector<std::vector<double>> A) { const int n = A.size(); LUinfo data; for (int i = 0; i < n; ++i) { int pivot = i; for (int j = i + 1; j < n; ++j) if (std::abs(A[j][i]) > std::abs(A[pivot][i])) pivot = j; std::swap(A[pivot], A[i]); data.index.push_back(pivot); // if A[i][i] == 0, LU decomposition failed. for (int j = i + 1; j < n; ++j) { A[j][i] /= A[i][i]; for (int k = i + 1; k < n; ++k) A[j][k] -= A[i][k] * A[j][i]; data.value.push_back(A[j][i]); } } for (int i = n - 1; i >= 0; --i) { for (int j = i + 1; j < n; ++j) data.value.push_back(A[i][j]); data.value.push_back(A[i][i]); } return data; } // O( n^2 ) Gaussian backward substitution std::vector<double> LU_backsubstitution(const LUinfo &data, std::vector<double> b) { const int n = b.size(); int k = 0; for (int i = 0; i < n; ++i) { std::swap(b[data.index[i]], b[i]); for (int j = i + 1; j < n; ++j) b[j] -= b[i] * data.value[k++]; } for (int i = n - 1; i >= 0; --i) { for (int j = i + 1; j < n; ++j) b[i] -= b[j] * data.value[k++]; b[i] /= data.value[k++]; } return b; } double dp[102]; double dp2[102]; double dp3[102]; double tmp[102]; // 魔法でa->bと移動するとき、 // a到達時点での最小(dp) と bから始めたときの最小(dp2)を足す? signed main() { INIT; VAR(int, n, m); std::vector<int> c(n + 1, 0); FOR(i, 2, n) { std::cin >> c[i]; } if (n == 2) { OUT(0)BR; return 0; } if (m == 1) { ll sum = 0; REP(i, c.size()) { sum += c[i]; } OUT(sum)BR; return 0; } FOR(k, 1, n - m + 1) { std::fill(tmp, tmp + 102, 0); FOR(i, k + 1, n - m + 1) { double sum = 0; FOR(j, 1, m + 1) { if (i - j <= 0) break; tmp[i] += tmp[i - j] / m; } tmp[i] += c[i]; } std::vector<std::vector<double>> A; std::vector<double> B; FOR(i, n - m + 1, n) { std::vector<double> a(m - 1, 0); double b = 0; int norm = n - m + 1; a[i - norm] = m; b = m * c[i]; FOR(j, std::max(i - m, k), i) { if (j <= n - m) b += tmp[j]; else --a[j - norm]; } FOR(j, std::max(i + 2 * (n - i) - m, k), i) { if (j <= n - m) b += tmp[j]; else --a[j - norm]; } //2n - m - i FOR(j, std::max(n - (m - (n - i)), i), n) { if (j <= n - m) b += tmp[j]; else --a[j - norm]; } A.emplace_back(a); B.emplace_back(b); } auto data = LU_decomposition(A); auto x = LU_backsubstitution(data, B); REP(i, m - 1) { tmp[i + n - m + 1] = x[i]; } REP(i, m) { tmp[n] += tmp[n - i - 1] / m; } dp2[k] = tmp[n]; if (k == 1) { REP(i, n + 1) { dp[i] = tmp[i]; } } } FOR(i, n - m + 1, n) { dp2[i] = dp2[n - m]; } FOR(i, 1, n) { double sum = 0; double min = 1e308; FOR(j, i + 1, std::min(i + m, n)) { sum += (dp3[j] + c[j]) / m; CHMIN(min, dp2[j]); } dp3[i] = std::min(min, sum); } REP(i, c.size()) { OUT(dp[i])SP; }BR; REP(i, c.size()) { OUT(dp2[i])SP; }BR; REP(i, c.size()) { OUT(dp3[i])SP; }BR; return 0; }