結果

問題 No.1599 Hikyaku
ユーザー hirayuu_ychirayuu_yc
提出日時 2024-09-20 10:31:56
言語 C++23(gcc13)
(gcc 13.2.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 9,963 bytes
コンパイル時間 4,124 ms
コンパイル使用メモリ 290,064 KB
実行使用メモリ 110,116 KB
最終ジャッジ日時 2024-09-20 10:32:46
合計ジャッジ時間 46,191 ms
ジャッジサーバーID
(参考情報)
judge5 / judge4
このコードへのチャレンジ
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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 AC 236 ms
93,952 KB
testcase_01 AC 277 ms
100,224 KB
testcase_02 AC 281 ms
100,480 KB
testcase_03 AC 210 ms
93,696 KB
testcase_04 AC 1,214 ms
97,920 KB
testcase_05 AC 472 ms
98,056 KB
testcase_06 AC 1,198 ms
110,116 KB
testcase_07 AC 530 ms
109,844 KB
testcase_08 AC 1,192 ms
109,596 KB
testcase_09 AC 329 ms
98,344 KB
testcase_10 AC 363 ms
95,180 KB
testcase_11 AC 278 ms
94,080 KB
testcase_12 AC 391 ms
96,472 KB
testcase_13 AC 325 ms
96,536 KB
testcase_14 AC 152 ms
93,824 KB
testcase_15 AC 234 ms
93,952 KB
testcase_16 AC 578 ms
93,952 KB
testcase_17 WA -
testcase_18 AC 1,250 ms
98,432 KB
testcase_19 AC 1,398 ms
105,856 KB
testcase_20 AC 1,413 ms
106,960 KB
testcase_21 AC 1,334 ms
99,304 KB
testcase_22 AC 1,341 ms
99,676 KB
testcase_23 AC 1,296 ms
97,308 KB
testcase_24 AC 1,287 ms
97,324 KB
testcase_25 AC 1,352 ms
99,844 KB
testcase_26 AC 1,145 ms
96,744 KB
testcase_27 AC 863 ms
96,452 KB
testcase_28 AC 826 ms
94,920 KB
testcase_29 AC 636 ms
95,140 KB
testcase_30 AC 405 ms
93,960 KB
testcase_31 AC 244 ms
93,696 KB
testcase_32 AC 249 ms
93,824 KB
testcase_33 AC 242 ms
93,952 KB
testcase_34 AC 759 ms
94,044 KB
testcase_35 AC 1,067 ms
94,904 KB
testcase_36 AC 1,244 ms
95,064 KB
testcase_37 AC 1,265 ms
95,064 KB
testcase_38 AC 1,263 ms
95,068 KB
testcase_39 AC 1,252 ms
96,640 KB
testcase_40 AC 1,270 ms
98,596 KB
testcase_41 AC 137 ms
93,824 KB
testcase_42 AC 247 ms
93,824 KB
testcase_43 AC 134 ms
93,824 KB
testcase_44 WA -
testcase_45 AC 619 ms
93,824 KB
testcase_46 WA -
testcase_47 WA -
testcase_48 WA -
testcase_49 AC 243 ms
93,952 KB
testcase_50 AC 427 ms
93,952 KB
testcase_51 AC 621 ms
93,952 KB
testcase_52 AC 414 ms
95,228 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#line 2 "Template/Template.hpp"
#include <bits/stdc++.h>
using namespace std;

#line 8 "Template/InOut.hpp"
inline void scan() {}
inline void scan(int &a) { std::cin >> a; }
inline void scan(unsigned &a) { std::cin >> a; }
inline void scan(long &a) { std::cin >> a; }
inline void scan(long long &a) { std::cin >> a; }
inline void scan(unsigned long long &a) { std::cin >> a; }
inline void scan(char &a) { std::cin >> a; }
inline void scan(float &a) { std::cin >> a; }
inline void scan(double &a) { std::cin >> a; }
inline void scan(long double &a) { std::cin >> a; }
inline void scan(std::vector<bool> &vec) {
    for (int32_t i = 0; i < vec.size(); i++) {
        int a;
        scan(a);
        vec[i] = a;
    }
}
inline void scan(std::string &a) { std::cin >> a; }
template <class T>
inline void scan(std::vector<T> &vec);
template <class T, size_t size>
inline void scan(std::array<T, size> &vec);
template <class T, class L>
inline void scan(std::pair<T, L> &p);
template <class T, size_t size>
inline void scan(T (&vec)[size]);
template <class T>
inline void scan(std::vector<T> &vec) {
    for (auto &i : vec) scan(i);
}
template <class T>
inline void scan(std::deque<T> &vec) {
    for (auto &i : vec) scan(i);
}
template <class T, size_t size>
inline void scan(std::array<T, size> &vec) {
    for (auto &i : vec) scan(i);
}
template <class T, class L>
inline void scan(std::pair<T, L> &p) {
    scan(p.first);
    scan(p.second);
}
template <class T, size_t size>
inline void scan(T (&vec)[size]) {
    for (auto &i : vec) scan(i);
}
template <class T>
inline void scan(T &a) {
    std::cin >> a;
}
inline void in() {}
template <class Head, class... Tail>
inline void in(Head &head, Tail &...tail) {
    scan(head);
    in(tail...);
}
inline void print() { std::cout << ' '; }
inline void print(const bool &a) { std::cout << a; }
inline void print(const int &a) { std::cout << a; }
inline void print(const unsigned &a) { std::cout << a; }
inline void print(const long &a) { std::cout << a; }
inline void print(const long long &a) { std::cout << a; }
inline void print(const unsigned long long &a) { std::cout << a; }
inline void print(const char &a) { std::cout << a; }
inline void print(const char a[]) { std::cout << a; }
inline void print(const float &a) { std::cout << a; }
inline void print(const double &a) { std::cout << a; }
inline void print(const long double &a) { std::cout << a; }
inline void print(const std::string &a) {
    for (auto &&i : a) print(i);
}
template <class T>
inline void print(const std::vector<T> &vec);
template <class T, size_t size>
inline void print(const std::array<T, size> &vec);
template <class T, class L>
inline void print(const std::pair<T, L> &p);
template <class T, size_t size>
inline void print(const T (&vec)[size]);
template <class T>
inline void print(const std::vector<T> &vec) {
    if (vec.empty()) return;
    print(vec[0]);
    for (auto i = vec.begin(); ++i != vec.end();) {
        std::cout << ' ';
        print(*i);
    }
}
template <class T>
inline void print(const std::deque<T> &vec) {
    if (vec.empty()) return;
    print(vec[0]);
    for (auto i = vec.begin(); ++i != vec.end();) {
        std::cout << ' ';
        print(*i);
    }
}
template <class T, size_t size>
inline void print(const std::array<T, size> &vec) {
    print(vec[0]);
    for (auto i = vec.begin(); ++i != vec.end();) {
        std::cout << ' ';
        print(*i);
    }
}
template <class T, class L>
inline void print(const std::pair<T, L> &p) {
    print(p.first);
    std::cout << ' ';
    print(p.second);
}
template <class T, size_t size>
inline void print(const T (&vec)[size]) {
    print(vec[0]);
    for (auto i = vec; ++i != end(vec);) {
        std::cout << ' ';
        print(*i);
    }
}
template <class T>
inline void print(const T &a) {
    std::cout << a;
}
inline void out() { std::cout << '\n'; }
template <class T>
inline void out(const T &t) {
    print(t);
    std::cout << '\n';
}
template <class Head, class... Tail>
inline void out(const Head &head, const Tail &...tail) {
    print(head);
    std::cout << ' ';
    out(tail...);
}
inline void Yes(bool i = true) { out(i ? "Yes" : "No"); }
inline void No(bool i = true) { out(i ? "No" : "Yes"); }
inline void Takahashi(bool i = true) { out(i ? "Takahashi" : "Aoki"); }
inline void Aoki(bool i = true) { out(i ? "Aoki" : "Takahashi"); }
inline void First(bool i = true) { out(i ? "First" : "Second"); }
inline void Second(bool i = true) { out(i ? "Second" : "First"); }
inline void Possible(bool i = true) { out(i ? "Possible" : "Impossible"); }
inline void Impossible(bool i = true) { out(i ? "Impossible" : "Possible"); }
inline void fls() { std::flush(std::cout); }
struct IOsetup {
    IOsetup() {
        std::ios::sync_with_stdio(false);
        std::cin.tie(nullptr);
        std::cout << std::fixed << std::setprecision(16);
    }
} iosetup;
#line 8 "Template/Util.hpp"
using ll = long long;
using ld = long double;
using ull = unsigned long long;
using uint = unsigned int;
using pll = std::pair<ll, ll>;
using pii = std::pair<int, int>;
using vl = std::vector<ll>;
using vvl = std::vector<std::vector<ll>>;
using pdd = std::pair<ld, ld>;
using tuplis = std::array<ll, 3>;
template <class T>
using pq = std::priority_queue<T, std::vector<T>, std::greater<T>>;
constexpr ll LINF = (1LL << 62) - (1LL << 31);
constexpr int32_t INF = INT_MAX >> 1;
constexpr ll MINF = 1LL << 40;
constexpr ld DINF = std::numeric_limits<ld>::infinity();
constexpr int32_t MODD = 1000000007;
constexpr int32_t MOD = 998244353;
constexpr ld EPS = 1e-9;
constexpr ld PI = 3.1415926535897932;
const ll four[] = {0, 1, 0, -1, 0};
const ll eight[] = {0, 1, 1, 0, -1, -1, 1, -1, 0};
template <class T>
bool chmin(T &a, const T &b) {
    if (a > b) {
        a = b;
        return true;
    } else
        return false;
}
template <class T>
bool chmax(T &a, const T &b) {
    if (a < b) {
        a = b;
        return true;
    } else
        return false;
}
template <class T>
ll sum(const T &a) {
    return accumulate(std::begin(a), std::end(a), 0LL);
}
template <class T>
ld dsum(const T &a) {
    return accumulate(std::begin(a), std::end(a), 0.0L);
}
template <class T>
auto min(const T &a) {
    return *min_element(std::begin(a), std::end(a));
}
template <class T>
auto max(const T &a) {
    return *max_element(std::begin(a), std::end(a));
}
#line 1 "Template/Macro.hpp"
#define _overload3(_1, _2, _3, name, ...) name
#define _overload4(_1, _2, _3, _4, name, ...) name
#define _rep1(i, n) for (ll i = 0; i < (n); i++)
#define _rep2(i, a, b) for (ll i = (a); i < (b); i++)
#define _rep3(i, a, b, c) for (ll i = (a); i < (b); i += (c))
#define rep(...) _overload4(__VA_ARGS__, _rep3, _rep2, _rep1)(__VA_ARGS__)
#define _rrep1(i, n) for (ll i = (n) - 1; i >= 0; i--)
#define _rrep2(i, a, b) for (ll i = (b) - 1; i >= (a); i--)
#define rrep(...) _overload3(__VA_ARGS__, _rrep2, _rrep1)(__VA_ARGS__)
#define each(i, ...) for (auto&& i : __VA_ARGS__)
#define all(i) std::begin(i), std::end(i)
#define rall(i) std::rbegin(i), std::rend(i)
#define len(x) ((ll)(x).size())
#define fi first
#define se second
#define uniq(x) x.erase(unique(all(x)), std::end(x))
#define vec(type, name, ...) vector<type> name(__VA_ARGS__);
#define vv(type, name, h, ...) std::vector<std::vector<type>> name(h, std::vector<type>(__VA_ARGS__));
#define INT(...) int __VA_ARGS__; in(__VA_ARGS__)
#define LL(...) long long __VA_ARGS__; in(__VA_ARGS__)
#define ULL(...) unsigned long long __VA_ARGS__; in(__VA_ARGS__)
#define STR(...) std::string __VA_ARGS__; in(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__; in(__VA_ARGS__)
#define LD(...) long double __VA_ARGS__; in(__VA_ARGS__)
#define VEC(type, name, size) std::vector<type> name(size); in(name)
#define VV(type, name, h, w) std::vector<std::vector<type>> name(h, std::vector<type>(w)); in(name)
#line 8 "Template/Template.hpp"

constexpr ll H=600,W=600;
constexpr ll speed=8;
constexpr ld road=1000;
int main(){
    LL(X,Y);
    LL(N);
    VEC(tuplis,mails,N);
    array<array<array<ld,W>,H>,speed> dist;
    array<array<array<ld,W>,H>,speed> dp;
    rep(i,speed){
        rep(j,H){
            rep(k,W){
                dist[i][j][k]=DINF;
                dp[i][j][k]=DINF;
            }
        }
    }
    X--;Y--;
    queue<tuplis> que;
    rep(i,N){
        mails[i][0]--;mails[i][1]--;
        dist[mails[i][2]][mails[i][0]][mails[i][1]]=0;
        que.push(mails[i]);
    }
    while(!que.empty()){
        ll sp=que.front()[2],x=que.front()[0],y=que.front()[1];
        que.pop();
        rep(i,4){
            ll nx=x+four[i],ny=y+four[i+1];
            if(nx<0||H<=nx||ny<0||W<=ny)continue;
            if(isinf(dist[sp][nx][ny])){
                dist[sp][nx][ny]=dist[sp][x][y]+road/sp;
                que.push({nx,ny,sp});
            }
        }
    }
    pq<pair<ld,tuplis>> vert;
    dp[mails[0][2]][mails[0][0]][mails[0][1]]=0;
    vert.push({0,mails[0]});
    while(!vert.empty()){
        ll sp=vert.top().se[2],x=vert.top().se[0],y=vert.top().se[1];
        ld dis=vert.top().fi;
        vert.pop();
        if(abs(dp[sp][x][y]-dis)>EPS)continue;
        rep(i,sp+1,speed){
            if(chmin(dp[i][x][y],max(dis,dist[i][x][y]))){
                vert.push({dp[i][x][y],{x,y,i}});
            }
        }
        rep(i,4){
            ll nx=x+four[i],ny=y+four[i+1];
            if(nx<0||H<=nx||ny<0||W<=ny)continue;
            if(chmin(dp[sp][nx][ny],dis+road/sp)){
                vert.push({dp[sp][nx][ny],{nx,ny,sp}});
            }
            rep(j,sp+1,speed){
                if(dis+road/sp<dist[j][nx][ny])continue;
                if(dist[j][nx][ny]+road/j<dis)continue;
                ld meet=(1000+dis*sp+dist[j][nx][ny]*j)/(sp+j);
                if(chmin(dp[j][nx][ny],meet*2-dist[j][nx][ny])){
                    vert.push({dp[j][nx][ny],{nx,ny,j}});
                }
            }
        }
    }
    ld ans=DINF;
    rep(i,speed){
        chmin(ans,dp[i][X][Y]);
    }
    out(ans);
}
0