#412129 (C++14) No.962 LCPs

提出ソース

結果

問題	No.962 LCPs
ユーザー	jell
提出日時	2019-12-26 17:21:41
言語	C++14 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	58 ms / 2,000 ms
コード長	12,378 bytes
コンパイル時間	2,032 ms
コンパイル使用メモリ	138,960 KB
実行使用メモリ	31,300 KB
最終ジャッジ日時	2024-04-15 03:22:44
合計ジャッジ時間	5,090 ms
ジャッジサーバーID （参考情報）	judge3 / judge2

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	2 ms 6,816 KB
testcase_01	AC	2 ms 6,940 KB
testcase_02	AC	2 ms 6,940 KB
testcase_03	AC	2 ms 6,940 KB
testcase_04	AC	2 ms 6,940 KB
testcase_05	AC	2 ms 6,944 KB
testcase_06	AC	2 ms 6,940 KB
testcase_07	AC	2 ms 6,940 KB
testcase_08	AC	2 ms 6,944 KB
testcase_09	AC	2 ms 6,944 KB
testcase_10	AC	2 ms 6,940 KB
testcase_11	AC	2 ms 6,940 KB
testcase_12	AC	2 ms 6,944 KB
testcase_13	AC	2 ms 6,944 KB
testcase_14	AC	2 ms 6,944 KB
testcase_15	AC	2 ms 6,944 KB
testcase_16	AC	2 ms 6,940 KB
testcase_17	AC	58 ms 31,300 KB
testcase_18	AC	33 ms 17,280 KB
testcase_19	AC	34 ms 17,384 KB
testcase_20	AC	24 ms 12,544 KB
testcase_21	AC	24 ms 12,544 KB
testcase_22	AC	19 ms 10,240 KB
testcase_23	AC	19 ms 10,240 KB
testcase_24	AC	15 ms 8,832 KB
testcase_25	AC	17 ms 8,832 KB
testcase_26	AC	15 ms 7,936 KB
testcase_27	AC	21 ms 11,520 KB
testcase_28	AC	16 ms 8,704 KB
testcase_29	AC	13 ms 8,448 KB
testcase_30	AC	18 ms 10,112 KB
testcase_31	AC	24 ms 12,800 KB
testcase_32	AC	14 ms 7,808 KB
testcase_33	AC	32 ms 16,760 KB
testcase_34	AC	15 ms 8,448 KB
testcase_35	AC	14 ms 8,064 KB
testcase_36	AC	18 ms 10,112 KB
testcase_37	AC	14 ms 7,040 KB
testcase_38	AC	14 ms 7,040 KB
testcase_39	AC	15 ms 7,040 KB
testcase_40	AC	14 ms 7,040 KB
testcase_41	AC	15 ms 7,168 KB
testcase_42	AC	15 ms 7,040 KB
testcase_43	AC	15 ms 6,944 KB
testcase_44	AC	15 ms 7,168 KB
testcase_45	AC	14 ms 7,040 KB
testcase_46	AC	14 ms 6,940 KB
testcase_47	AC	6 ms 6,944 KB
testcase_48	AC	4 ms 6,940 KB
testcase_49	AC	5 ms 6,944 KB
testcase_50	AC	5 ms 6,940 KB
testcase_51	AC	5 ms 6,944 KB
testcase_52	AC	4 ms 6,940 KB
testcase_53	AC	5 ms 6,940 KB
testcase_54	AC	4 ms 6,940 KB
testcase_55	AC	4 ms 6,944 KB
testcase_56	AC	5 ms 6,944 KB
testcase_57	AC	7 ms 6,940 KB
testcase_58	AC	7 ms 6,940 KB
testcase_59	AC	7 ms 6,944 KB
testcase_60	AC	6 ms 6,940 KB
testcase_61	AC	6 ms 6,940 KB
testcase_62	AC	6 ms 6,940 KB
testcase_63	AC	39 ms 21,680 KB
testcase_64	AC	5 ms 6,944 KB
testcase_65	AC	40 ms 21,748 KB

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ソースコード

raw source code

#ifdef LOCAL
    #define _GLIBCXX_DEBUG
    #define __clock__
#else
    #pragma GCC optimize("Ofast")
    // #define NDEBUG
#endif
// #define __buffer_check__
#define __precision__ 10
#define iostream_untie true
#define debug_stream std::cerr

#include <algorithm>
#include <bitset>
#include <cassert>
#include <chrono>
#include <climits>
#include <complex>
#include <cstring>
#include <deque>
#include <functional>
#include <iomanip>
#include <iostream>
#include <list>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <unordered_map>
#include <unordered_set>

#define all(v) std::begin(v), std::end(v)
#define rall(v) std::rbegin(v), std::rend(v)
#define odd(n) ((n) & 1)
#define even(n) (not __odd(n))
#define __popcount(n) __builtin_popcountll(n)
#define __clz32(n) __builtin_clz(n)
#define __clz64(n) __builtin_clzll(n)
#define __ctz32(n) __builtin_ctz(n)
#define __ctz64(n) __builtin_ctzll(n)

using i32 = int_least32_t; using i64 = int_least64_t; using u32 = uint_least32_t; using u64 = uint_least64_t;
using pii = std::pair<i32, i32>; using pll = std::pair<i64, i64>;
template <class T> using heap = std::priority_queue<T>;
template <class T> using rheap = std::priority_queue<T, std::vector<T>, std::greater<T>>;
template <class T> using hashset = std::unordered_set<T>;
template <class Key, class Value> using hashmap = std::unordered_map<Key, Value>;

namespace setting
{
    using namespace std::chrono;
    system_clock::time_point start_time, end_time;
    long long get_elapsed_time() { end_time = system_clock::now(); return duration_cast<milliseconds>(end_time - start_time).count(); }
    void print_elapsed_time() { debug_stream << "\n----- Exec time : " << get_elapsed_time() << " ms -----\n"; }
    void buffer_check()
    {
        char bufc;
        if(std::cin >> bufc) debug_stream << "\n\033[1;35mwarning\033[0m: buffer not empty.\n";
    }
    struct setupper
    {
        setupper()
        {
            if(iostream_untie) std::ios::sync_with_stdio(false), std::cin.tie(nullptr);
            std::cout << std::fixed << std::setprecision(__precision__);
    #ifdef stderr_path
            if(freopen(stderr_path, "a", stderr))
            {
                std::cerr << std::fixed << std::setprecision(__precision__);
            }
    #endif
    #ifdef stdout_path
            if(not freopen(stdout_path, "w", stdout))
            {
                freopen("CON", "w", stdout);
                debug_stream << "\n\033[1;35mwarning\033[0m: failed to open stdout file.\n";
            }
            std::cout << "";
    #endif
    #ifdef stdin_path
            if(not freopen(stdin_path, "r", stdin))
            {
                freopen("CON", "r", stdin);
                debug_stream << "\n\033[1;35mwarning\033[0m: failed to open stdin file.\n";
            }
    #endif
    #ifdef LOCAL
            debug_stream << "----- stderr at LOCAL -----\n\n";
            atexit(print_elapsed_time);
    #endif
    #ifdef __buffer_check__
            atexit(buffer_check);
    #endif
    #if defined(__clock__) || defined(LOCAL)
            start_time = system_clock::now();
    #endif
        }
    } __setupper; // struct setupper
} // namespace setting
#ifdef __clock__
class
{
    std::chrono::system_clock::time_point built_pt, last_pt; int built_ln, last_ln;
    std::string built_func, last_func; bool is_built = false;
  public:
    void build(int crt_ln, const std::string &crt_func)
    {
        is_built = true, last_pt = built_pt = std::chrono::system_clock::now(),  last_ln = built_ln = crt_ln, last_func = built_func = crt_func;
    }
    void set(int crt_ln, const std::string &crt_func)
    {
        if(is_built) last_pt = std::chrono::system_clock::now(), last_ln = crt_ln, last_func = crt_func;
        else debug_stream << "[ " << crt_ln << " : " << crt_func << " ] " << "myclock_t::set failed (yet to be built!)\n";
    }
    void get(int crt_ln, const std::string &crt_func)
    {
        if(is_built)
        {
            std::chrono::system_clock::time_point crt_pt(std::chrono::system_clock::now());
            long long diff = std::chrono::duration_cast<std::chrono::milliseconds>(crt_pt - last_pt).count();
            debug_stream << diff << " ms elapsed from" << " [ " << last_ln << " : " << last_func << " ]";
            if(last_ln == built_ln) debug_stream << " (when built)";
            debug_stream << " to" << " [ " << crt_ln << " : " << crt_func << " ]" << "\n";
            last_pt = built_pt, last_ln = built_ln, last_func = built_func;
        }
        else
        {
            debug_stream << "[ " << crt_ln << " : " << crt_func << " ] " << "myclock_t::get failed (yet to be built!)\n";
        }
    }
} myclock; // unnamed class
    #define build_clock() myclock.build(__LINE__, __func__)
    #define set_clock() myclock.set(__LINE__, __func__)
    #define get_clock() myclock.get(__LINE__, __func__)
#else
    #define build_clock() ((void)0)
    #define set_clock() ((void)0)
    #define get_clock() ((void)0)
#endif

namespace std
{
    // hash
    template <class T> size_t hash_combine(size_t seed, T const &key) { return seed ^ (hash<T>()(key) + 0x9e3779b9 + (seed << 6) + (seed >> 2)); }
    template <class T, class U> struct hash<pair<T, U>> { size_t operator()(pair<T, U> const &pr) const { return hash_combine(hash_combine(0, pr.first), pr.second); } };
    template <class tuple_t, size_t index = tuple_size<tuple_t>::value - 1> struct tuple_hash_calc { static size_t apply(size_t seed, tuple_t const &t) { return hash_combine(tuple_hash_calc<tuple_t, index - 1>::apply(seed, t), get<index>(t)); } };
    template <class tuple_t> struct tuple_hash_calc<tuple_t, 0> { static size_t apply(size_t seed, tuple_t const &t) { return hash_combine(seed, get<0>(t)); } };
    template <class... T> struct hash<tuple<T...>> { size_t operator()(tuple<T...> const &t) const { return tuple_hash_calc<tuple<T...>>::apply(0, t); } };
    // iostream
    template <class T, class U> istream &operator>>(istream &is, pair<T, U> &p) { return is >> p.first >> p.second; }
    template <class T, class U> ostream &operator<<(ostream &os, const pair<T, U> &p) { return os << p.first << ' ' << p.second; }
    template <class tuple_t, size_t index> struct tupleis { static istream &apply(istream &is, tuple_t &t) { tupleis<tuple_t, index - 1>::apply(is, t); return is >> get<index>(t); } };
    template <class tuple_t> struct tupleis<tuple_t, UINT_MAX> { static istream &apply(istream &is, tuple_t &t) { return is; } };
    template <class... T> istream &operator>>(istream &is, tuple<T...> &t)  { return tupleis<tuple<T...>, tuple_size<tuple<T...>>::value - 1>::apply(is, t); }
    template <> istream &operator>>(istream &is, tuple<> &t) { return is; }
    template <class tuple_t, size_t index> struct tupleos { static ostream &apply(ostream &os, const tuple_t &t) { tupleos<tuple_t, index - 1>::apply(os, t); return os << ' ' << get<index>(t); } };
    template <class tuple_t> struct tupleos<tuple_t, 0> { static ostream &apply(ostream &os, const tuple_t &t) { return os << get<0>(t); } };
    template <class... T> ostream &operator<<(ostream &os, const tuple<T...> &t)  { return tupleos<tuple<T...>, tuple_size<tuple<T...>>::value - 1>::apply(os, t); }
    template <> ostream &operator<<(ostream &os, const tuple<> &t) { return os; }
    template <class Container, typename Value = typename Container::value_type, enable_if_t<!is_same<decay_t<Container>, string>::value, nullptr_t> = nullptr>
    istream& operator>>(istream& is, Container &cont) { for(auto&& e : cont) is >> e; return is; }
    template <class Container, typename Value = typename Container::value_type, enable_if_t<!is_same<decay_t<Container>, string>::value, nullptr_t> = nullptr>
    ostream& operator<<(ostream& os, const Container &cont) { bool flag = 1; for(auto&& e : cont) flag ? flag = 0 : (os << ' ', 0), os << e; return os; }
} // namespace std

#ifdef LOCAL
    #define dump(...)                                                              \
        debug_stream << "[ " << __LINE__ << " : " << __FUNCTION__ << " ]\n",       \
            dump_func(#__VA_ARGS__, __VA_ARGS__)
    template <class T> void dump_func(const char *ptr, const T &x)
    {
        debug_stream << '\t';
        for(char c = *ptr; c != '\0'; c = *++ptr) if(c != ' ') debug_stream << c;
        debug_stream << " : " << x << '\n';
    }
    template <class T, class... rest_t> void dump_func(const char *ptr, const T &x, rest_t... rest)
    {
        debug_stream << '\t';
        for(char c = *ptr; c != ','; c = *++ptr) if(c != ' ') debug_stream << c;
        debug_stream << " : " << x << ",\n"; dump_func(++ptr, rest...);
    }
#else
    #define dump(...) ((void)0)
#endif
template <class P> void read_range(P __first, P __second) { for(P i = __first; i != __second; ++i) std::cin >> *i; }
template <class P> void write_range(P __first, P __second) { for(P i = __first; i != __second; std::cout << (++i == __second ? '\n' : ' ')) std::cout << *i; }

// substitue y for x if x > y.
template <class T> inline bool sbmin(T &x, const T &y) { return x > y ? x = y, true : false; }
// substitue y for x if x < y.
template <class T> inline bool sbmax(T &x, const T &y) { return x < y ? x = y, true : false; }
// binary search.
i64 bin(const std::function<bool(i64)> &pred, i64 ok, i64 ng)
{
    while(std::abs(ok - ng) > 1) { i64 mid = (ok + ng) / 2; (pred(mid) ? ok : ng) = mid; }
    return ok;
}
double bin(const std::function<bool(double)> &pred, double ok, double ng, const double eps)
{
    while(std::abs(ok - ng) > eps) { double mid = (ok + ng) / 2; (pred(mid) ? ok : ng) = mid; }
    return ok;
}
// be careful that val is type-sensitive.
template <class T, class A, size_t N> void init(A (&array)[N], const T &val) { std::fill((T *)array, (T *)(array + N), val); }
// reset all bits.
template <class A> void reset(A &array) { memset(array, 0, sizeof(array)); }


/* The main code follows. */

using namespace std;


struct solver
{

    solver()
    {
        int n; cin>>n;
        vector<string> s(n);
        cin>>s;

        vector<vector<int>> l(n),r(n);
        vector<pii> stk;
        string prv;

        for(int i=0; i<n; ++i)
        {
            int j=0;
            while(j<(int)prv.size() && j<(int)s[i].size() && prv[j]==s[i][j]) ++j;
            dump(i,j,stk);

            int x=i;
            while(!stk.empty() && stk.back().first>=j)
            {
                x=stk.back().second;
                stk.pop_back();
            }
            if(x<i)
            {
                stk.emplace_back(j,x);
            }
            dump(i,x,stk);

            if(stk.empty() || stk.back().first<s[i].size()) stk.emplace_back(s[i].size(),i);

            prv=s[i];
            l[i].resize(s[i].size());

            for(j=0; j<(int)s[i].size(); ++j)
            {
                auto itr=lower_bound(all(stk),pii{j+1,-1});
                l[i][j]=i+1-itr->second;
            }

            dump(i,l[i]);
        }

        swap(l,r);
        reverse(all(s));
        stk.clear();
        prv="";

        for(int i=0; i<n; ++i)
        {
            int j=0;
            while(j<(int)prv.size() && j<(int)s[i].size() && prv[j]==s[i][j]) ++j;
            dump(i,j,stk);

            int x=i;
            while(!stk.empty() && stk.back().first>=j)
            {
                x=stk.back().second;
                stk.pop_back();
            }
            if(x<i)
            {
                stk.emplace_back(j,x);
            }
            dump(i,x,stk);

            if(stk.empty() || stk.back().first<s[i].size()) stk.emplace_back(s[i].size(),i);

            prv=s[i];
            l[i].resize(s[i].size());

            for(j=0; j<(int)s[i].size(); ++j)
            {
                auto itr=lower_bound(all(stk),pii{j+1,-1});
                l[i][j]=i+1-itr->second;
            }

            dump(i,l[i]);
        }

        // swap(l,r);
        reverse(all(s));
        reverse(all(l));


        i64 ans=0;
        for(int i=0; i<n; ++i)
        {
            for(int j=0; j<(int)s[i].size(); ++j)
            {
                ans+=(i64)l[i][j]*r[i][j];
            }
        }
        cout<<ans<<endl;
    }
};

signed main()
{
    u32 t = 1;
#ifdef LOCAL
    t=2;
#endif
    // t = -1; // infinite loop
    // cin >> t; // case number given
    while(t--) solver();
}

yukicoder

結果

テストケース

ソースコード