Tifa's CP Library

:heavy_check_mark: test/cpv_local/io/fio.cpp

Depends on

Code

// competitive-verifier: STANDALONE

#include "../../../src/io/fastin/lib.hpp"
#include "../../../src/io/fastout/lib.hpp"
#include "../../../src/io/i128/lib.hpp"
#include "../base.hpp"

using namespace tifa_libs;

strn fn_in = "test/cpv_local/_data/others/io/io.in";
strn fn_ans = "test/cpv_local/_data/others/io/io.out";

template <class T>
void single_test() {
  CEXP T MIN = [] {
    if CEXP (imost64_c<T>) return std::numeric_limits<T>::min();
    else if (sint_c<T>) return (T)1 << (sizeof(T) * 8 - 1);
    else return (T)0;
  }(),
         MAX = (T)~MIN;

  T x;
  FILE* f;

  f = fopen(fn_in.c_str(), "w");
  fout.rebind(f);
  fout << MIN;
  fout.flush();
  fout.rebind(stdout);
  fclose(f);
  f = fopen(fn_in.c_str(), "r");
  fid_stdin.rebind(f);
  fin >> x;
  fid_stdin.rebind(stdin);
  fclose(f);
  check(x, MIN);

  f = fopen(fn_in.c_str(), "w");
  fout.rebind(f);
  fout << MAX;
  fout.flush();
  fout.rebind(stdout);
  fclose(f);
  f = fopen(fn_in.c_str(), "r");
  fid_stdin.rebind(f);
  fin >> x;
  fid_stdin.rebind(stdin);
  fclose(f);
  check(x, MAX);
}

int main() {
  timer_(single_test<i16>());
  timer_(single_test<u16>());
  timer_(single_test<i32>());
  timer_(single_test<u32>());
  timer_(single_test<i64>());
  timer_(single_test<u64>());
  timer_(single_test<i128>());
  timer_(single_test<u128>());
}
#line 1 "test/cpv_local/io/fio.cpp"
// competitive-verifier: STANDALONE

#line 2 "src/io/fastin/lib.hpp"

#line 2 "src/util/alias/others/lib.hpp"

#line 2 "src/util/consts/lib.hpp"

#line 2 "src/util/alias/num/lib.hpp"

#line 2 "src/util/util/lib.hpp"
// https://github.com/Tiphereth-A/CP-lib
#include <bits/extc++.h>
// clang-format off
namespace tifa_libs {

#define CEXP constexpr
#define CEXPE constexpr explicit
#define CR const&
#define CP const*
#define PC *const
#define CPC const*const
#define TPN typename
#define NE noexcept
#define CNE const noexcept
#define ND [[nodiscard]]
#define cT_(...) std::conditional_t<sizeof(__VA_ARGS__) <= sizeof(size_t) * 2, __VA_ARGS__, __VA_ARGS__ CR>
// NOLINTNEXTLINE(misc-const-correctness)
#define flt_(T, i, l, r, ...) for (T i = (l), i##e = (r)__VA_OPT__(, ) __VA_ARGS__; i < i##e; ++i)
#define retif_(cond, if_true, ...) if cond return if_true __VA_OPT__(; else return __VA_ARGS__)
#ifdef ONLINE_JUDGE
#undef assert
#define assert(x) 42
#endif

using namespace std::ranges;
using namespace std::literals;

template <class T>
CEXP T abs(T x) NE { retif_((x < 0), -x, x); }

}  // namespace tifa_libs
// clang-format on
#line 4 "src/util/alias/num/lib.hpp"
// clang-format off
namespace tifa_libs {

#define mk0_(w, t) using w = t; using c##w = const t
#define mk_(w, t) mk0_(w, t); CEXP w operator""_##w(unsigned long long x) NE { return (w)x; }
mk_(i8, int8_t) mk_(u8, uint8_t) mk_(i16, int16_t) mk_(u16, uint16_t) mk_(i32, int32_t) mk_(u32, uint32_t) mk_(i64, int64_t) mk_(u64, uint64_t) mk_(isz, ssize_t) mk_(usz, size_t) mk_(chr, char) mk_(schr, signed char) mk_(uchr, unsigned char) mk_(sint, signed) mk_(uint, unsigned);
mk0_(i128, __int128_t); mk0_(u128, __uint128_t); mk0_(f32, float); mk0_(f64, double); mk0_(f128, long double);
#undef mk0_
#undef mk_

}  // namespace tifa_libs
// clang-format on
#line 4 "src/util/consts/lib.hpp"
// clang-format off
namespace tifa_libs {
using std::numbers::pi_v;
template <std::floating_point FP>
inline FP eps_v = std::sqrt(std::numeric_limits<FP>::epsilon());
template <std::floating_point FP>
CEXP void set_eps(FP v) NE { eps_v<FP> = v; }
CEXP u32 TIME = ((__TIME__[0] & 15) << 20) | ((__TIME__[1] & 15) << 16) | ((__TIME__[3] & 15) << 12) | ((__TIME__[4] & 15) << 8) | ((__TIME__[6] & 15) << 4) | (__TIME__[7] & 15);
CEXP auto STR2U16 = [] { std::array<u32, 65536> table{}; table.fill(-1_u32); flt_ (u32, i, 48, 58) flt_ (u32, j, 48, 58) table[i << 8 | j] = (j & 15) * 10 + (i & 15); return table; }();

inline const auto fn_0 = [](auto&&...) NE {};
inline const auto fn_is0 = [](auto x) NE { return x == 0; };
}  // namespace tifa_libs
// clang-format on
#line 4 "src/util/alias/others/lib.hpp"

namespace tifa_libs {

template <class T>
struct chash {
  CEXP static u64 C = u64(pi_v<f128> * 2e18) | 71;
  CEXP u64 operator()(T x) CNE { return __builtin_bswap64(((u64)x ^ TIME) * C); }
};
// clang-format off
#define mk_(w, t) using w = t; using c##w = const t;
mk_(strn, std::string) mk_(strnv, std::string_view)
#undef mk_
template <class T> struct edge_t { T w; u32 u, v; CEXP auto operator<=>(edge_t CR) const = default; }; template <class T> using cedge_t = const edge_t<T>;
template <class T> struct pt3 { T _0, _1, _2; CEXP auto operator<=>(pt3 CR) const = default; }; template <class T> using cpt3 = const pt3<T>;
template <class T> struct pt4 { T _0, _1, _2, _3; CEXP auto operator<=>(pt4 CR) const = default; }; template <class T> using cpt4 = const pt4<T>;
#define mkT_(w, t, ...) template <class T> using w = t __VA_OPT__(, ) __VA_ARGS__; template <class T> using c##w = const t __VA_OPT__(, ) __VA_ARGS__;
mkT_(ptt, std::pair<T, T>) mkT_(alc, std::pmr::polymorphic_allocator<T>) mkT_(vec, std::vector<T>) mkT_(vvec, vec<vec<T>>) mkT_(v3ec, vvec<vec<T>>) mkT_(vecpt, vec<ptt<T>>) mkT_(vvecpt, vvec<ptt<T>>) mkT_(ptvec, ptt<vec<T>>) mkT_(ptvvec, ptt<vvec<T>>)
#undef mkT_
template <class T> using itl = std ::initializer_list<T>;
template <class T, usz ext = std::dynamic_extent> using spn = std::span<T const, ext>;
template <class T, usz N> using arr = std::array<T, N>; template <class T, usz N> using carr = std::array<const T, N>;
template <class U, class T> using vecp = vec<std::pair<U, T>>; template <class U, class T> using vvecp = vvec<std::pair<U, T>>;
template <class U, class T> using vvecp = vvec<std::pair<U, T>>; template <class U, class T> using vvvecp = vvec<vvec<std::pair<U, T>>>;
#ifdef PB_DS_ASSOC_CNTNR_HPP
template <class T, class C = std::less<T>> using set = __gnu_pbds::tree<T, __gnu_pbds::null_type, C>;
template <class K, class V, class C = std::less<K>> using map = __gnu_pbds::tree<K, V, C>;
// hset<u64> s({}, {}, {}, {}, {1<<16});
template <class T, class HF = chash<T>> using hset = __gnu_pbds::gp_hash_table<T, __gnu_pbds::null_type, HF>;
// hmap<u64, int> s({}, {}, {}, {}, {1<<16});
template <class K, class V, class HF = chash<K>> using hmap = __gnu_pbds::gp_hash_table<K, V, HF>;
#else
using std::set, std::map;
template <class T, class HF = chash<T>> using hset = std::unordered_set<T, HF>;
template <class K, class V, class HF = chash<K>> using hmap = std::unordered_map<K, V, HF>;
#endif
#ifdef PB_DS_PRIORITY_QUEUE_HPP
template <class T, class C = std::less<T>> using pq = __gnu_pbds::priority_queue<T, C>;
#else
template <class T, class C = std::less<T>> using pq = std::priority_queue<T, vec<T>, C>;
#endif
template <class T> using pqg = pq<T, std::greater<T>>;
// clang-format on
#define mk1_(V, A, T) using V##A = V<T>;
#define mk_(V, A, T) mk1_(V, A, T) mk1_(c##V, A, T)
#define mk(A, T) mk_(edge_t, A, T) mk_(ptt, A, T) mk_(pt3, A, T) mk_(pt4, A, T) mk_(vec, A, T) mk_(vvec, A, T) mk_(v3ec, A, T) mk_(vecpt, A, T) mk_(vvecpt, A, T) mk_(ptvec, A, T) mk_(ptvvec, A, T) mk1_(spn, A, T) mk1_(itl, A, T)
mk(b, bool) mk(c, chr) mk(i, i32) mk(u, u32) mk(ii, i64) mk(uu, u64) mk(t, isz) mk(z, usz) mk(f, f32) mk(d, f64) mk(s, strn);
#undef mk
#undef mk_
#undef mk1_

}  // namespace tifa_libs
#line 2 "src/util/traits/math/lib.hpp"
// clang-format off
#line 4 "src/util/traits/math/lib.hpp"

namespace tifa_libs {

template <class T> concept char_c = std::same_as<T, char> || std::same_as<T, signed char> || std::same_as<T, unsigned char>;
#pragma GCC diagnostic ignored "-Wpedantic"
template <class T> concept s128_c = std::same_as<T, __int128_t> || std::same_as<T, __int128>;
template <class T> concept u128_c = std::same_as<T, __uint128_t> || std::same_as<T, unsigned __int128>;
template <class T> concept i128_c = s128_c<T> || u128_c<T>;
#pragma GCC diagnostic warning "-Wpedantic"
template <class T> concept imost64_c = std::integral<T> && sizeof(T) * __CHAR_BIT__ <= 64;
template <class T> concept smost64_c = imost64_c<T> && std::signed_integral<T>;
template <class T> concept umost64_c = imost64_c<T> && std::unsigned_integral<T>;
template <class T> concept int_c = i128_c<T> || imost64_c<T>;
template <class T> concept sint_c = s128_c<T> || smost64_c<T>;
template <class T> concept uint_c = u128_c<T> || umost64_c<T>;
template <class T> concept arithm_c = std::is_arithmetic_v<T> || int_c<T>;
template <class T> concept mint_c = requires(T x) { {x.mod()} -> uint_c; {x.val()} -> uint_c; };
template <class T> concept dft_c = requires(T x, std::vector<TPN T::data_t> v, u32 n) { {x.size()} -> std::same_as<u32>; x.bzr(n); x.dif(v, n); x.dit(v, n); };
template <class T> concept ntt_c = dft_c<T> && requires(T x) { T::max_size; T::G; };

template <class T> struct to_sint : std::make_signed<T> {};
template <> struct to_sint<u128> { using type = i128; };
template <> struct to_sint<i128> { using type = i128; };
template <class T> using to_sint_t = TPN to_sint<T>::type;
template <class T> struct to_uint : std::make_unsigned<T> {};
template <> struct to_uint<u128> { using type = u128; };
template <> struct to_uint<i128> { using type = u128; };
template <class T> using to_uint_t = TPN to_uint<T>::type;
template <arithm_c T> struct to_bigger : std::make_unsigned<T> {};
#define _(w,ww) template <> struct to_bigger<w> { using type = ww; }
#define _2(w,ww) _(i##w,i##ww); _(u##w,u##ww);
_2(8, 16); _2(16, 32); _2(32, 64); _2(64, 128); _(f32, f64); _(f64, f128);
#undef _2
#undef _
template <class T> using to_bigger_t = TPN to_bigger<T>::type;

template <arithm_c T> CEXP T inf_v = [] {
    if CEXP(sint_c<T>) return T(to_uint_t<T>(-1) / 4 - 1);
    else if CEXP(uint_c<T>) return T(-1) / 2 - 1;
    else return std::numeric_limits<T>::max() / 2 - 1;
}();

}  // namespace tifa_libs
// clang-format on
#line 5 "src/io/fastin/lib.hpp"
#ifdef __linux__
#include <sys/mman.h>
#include <sys/stat.h>
#endif

namespace tifa_libs {

struct fastin_data {
  CEXP static u32 BUF = 0x200005;
  FILE* f_ = nullptr;
#ifdef __linux__
  chr *bg, *ed, *p;
  struct stat Fl;

  void rebind(FILE* f = nullptr) NE {
#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
    if (!f_) munmap(bg, Fl.st_size + 1);
#pragma GCC diagnostic warning "-Wmaybe-uninitialized"
    if (!f) return;
    auto fd = fileno(f_ = f);
    fstat(fd, &Fl);
    p = (bg = (chr*)mmap(nullptr, Fl.st_size + 4, PROT_READ, MAP_PRIVATE, fd, 0));
    ed = bg + Fl.st_size;
    madvise(bg, Fl.st_size + 4, MADV_SEQUENTIAL);
  }

  ND bool iseof() CNE { return p == ed; }
  ~fastin_data() NE { rebind(); }
#else
  // NOLINTNEXTLINE(modernize-avoid-c-arrays)
  chr buf[BUF], *ed, *p;

  void rebind(FILE* f) NE { f_ = f, p = ed = buf; }
  ND bool iseof() NE {
    if (p == ed) [[unlikely]]
      ed = (p = buf) + fread(buf, 1, BUF, f_);
    return p == ed;
  }
#endif

  fastin_data(FILE* f = stdin) NE { assert(f), rebind(f); }
  fastin_data(fastin_data CR) = delete;
  fastin_data& operator=(fastin_data CR) = delete;
};
// clang-format off
enum FIN_SET : u8 { FS_NEWLINE = 1, FS_SPACE = 2, FS_NEG = 4, FS_NUM = 8, FS_ALPHA = 16, FS_OTHERS = 32 };
// clang-format on
template <u32 charset>
class fastin {
  fastin_data& data;

  static CEXP bool is_cntrl(chr c) NE {
    if CEXP (charset & FS_OTHERS) return iscntrl(c);
    else if CEXP (charset & FS_NEWLINE) return c < 32;
    else return false;
  }
  static CEXP bool is_cntrls(chr c) NE {
    if CEXP (charset & FS_OTHERS) return !isgraph(c);
    else if CEXP (charset & (FS_NEWLINE | FS_SPACE)) return c <= 32;
    else return false;
  }
  static CEXP bool is_digit(chr c) NE {
    if CEXP (charset & (FS_ALPHA | FS_OTHERS)) return isdigit(c);
    else if CEXP (!(charset & FS_NUM)) return false;
    else if CEXP (!(charset & FS_NEG)) return c > 32;
    else return c >= 48;
  }
  static CEXP bool is_neg_digit(chr c) NE {
    if CEXP (!(charset & FS_NEG)) return is_digit(c);
    else if CEXP (charset & (FS_ALPHA | FS_OTHERS)) return c == '-' || isdigit(c);
    else return c > 32;
  }
#ifdef __linux__
  template <bool ignore_space = true>
  void read_str(strn& n) NE {
    chr* l;
    if CEXP (ignore_space) {
      skip_cntrls(), l = data.p;
      while (!is_cntrls(*data.p)) ++data.p;
    } else {
      skip_cntrl(), l = data.p;
      while (!is_cntrl(*data.p)) ++data.p;
    }
    n.assign(l, data.p);
  }
#else
  template <bool ignore_space>
  void read_str(strn& n) NE {
    if CEXP (n.clear(); ignore_space) {
      n.push_back(skip_cntrls().get());
      while (!is_cntrls(peek())) n.push_back(get());
    } else {
      n.push_back(skip_cntrl().get());
      while (!is_cntrl(peek())) n.push_back(get());
    }
  }
#endif
 public:
  fastin(fastin_data& data) NE : data(data) {}
  fastin(fastin CR) = delete;
  fastin& operator=(fastin CR) = delete;

  chr peek() NE {
    if (data.iseof()) [[unlikely]]
      return EOF;
    return *data.p;
  }
  chr get_unchk() NE { return *data.p++; }
  chr get() NE {
    if (data.iseof()) [[unlikely]]
      return EOF;
    return get_unchk();
  }
#define SKIP(name, pred)              \
  fastin& skip_##name() NE {          \
    while (pred(peek())) get_unchk(); \
    return *this;                     \
  }
  SKIP(cntrl, is_cntrl)
  SKIP(cntrls, is_cntrls)
  SKIP(ndigit, !is_digit)
  SKIP(nnegdigit, !is_neg_digit)
#undef SKIP
  template <class T>
  requires(imost64_c<T> && !char_c<T>)
  fastin& operator>>(T& n) NE {
    if CEXP (std::same_as<T, bool>) n = skip_ndigit().get() != '0';
    else {
      n = 0;
      bool is_neg = false;
      if CEXP ((charset & FS_NEG) && std::signed_integral<T>) is_neg = (skip_nnegdigit().peek() == '-' && get_unchk());
      else skip_ndigit();
      std::conditional_t<sizeof(T) < sizeof(u32), u32, to_uint_t<T>> n_ = 0;
#ifdef __linux__
      // clang-format off
#define _ {while (~STR2U16[*(u16*)data.p]) (n_ *= 100) += STR2U16[*(u16*)data.p], data.p += 2; if (is_digit(peek())) (n_ *= 10) += get_unchk() & 15;}
      if ((usz)data.p & 1) { if (is_digit(peek())) [[likely]] { (n_ *= 10) += get_unchk() & 15; _ } } else _;
#undef _
      // clang-format on
#else
      while (is_digit(peek())) (n_ *= 10) += get_unchk() & 15;
#endif
      if CEXP (sint_c<T>)
        if (is_neg) n_ = -n_;
      n = (T)n_;
    }
    return *this;
  }
  fastin& operator>>(std::floating_point auto& n) NE {
    static strn s;
    (*this >> s), std::from_chars(begin(s).base(), end(s).base(), n);
    return *this;
  }
  //! ignore cntrl and space
  fastin& operator>>(char_c auto& n) NE {
    n = skip_cntrls().get();
    return *this;
  }
  fastin& operator>>(strn& n) NE {
    read_str<true>(n);
    return *this;
  }
  fastin& getline(strn& n) NE {
    read_str<false>(n);
    return *this;
  }
  //! NOT ignore cntrl and space
  fastin& strict_read(char_c auto& n) NE {
    n = get();
    return *this;
  }
  fastin& operator>>(fastin& (*func)(fastin&)) NE { return func(*this); }
};
inline fastin_data fid_stdin;
inline fastin<FS_NEWLINE | FS_SPACE | FS_NEG | FS_NUM | FS_ALPHA | FS_OTHERS> fin(fid_stdin);
inline fastin<FS_NEWLINE | FS_SPACE | FS_NEG | FS_NUM> fin_int(fid_stdin);
inline fastin<FS_NEWLINE | FS_SPACE | FS_NUM> fin_uint(fid_stdin);
template <u32 w>
inline fastin<w>& ws(fastin<w>& f) NE { return f.skip_cntrls(); }

}  // namespace tifa_libs
#line 2 "src/io/fastout/lib.hpp"

#line 5 "src/io/fastout/lib.hpp"

namespace tifa_libs {

class fastout {
  CEXP static u32 BUF = 0x200005, INTBUF = 63;
  FILE* f_ = nullptr;
  // NOLINTNEXTLINE(modernize-avoid-c-arrays)
  chr int_buf[INTBUF];
  // NOLINTNEXTLINE(modernize-avoid-c-arrays)
  chr buf[BUF], *p;
  chr CPC ed = buf + BUF;
  std::chars_format fmt = std::chars_format::general;
  int precision = 6;

  fastout& write_str(chr CP n, usz len = 0) NE {
    if (!len) len = strlen(n);
    usz l_;
    chr CP n_ = n;
    while (p + len >= ed) memcpy(p, n_, l_ = usz(ed - p)), p += l_, n_ += l_, len -= l_, flush();
    return memcpy(p, n_, len), p += len, *this;
  }

 public:
  fastout(FILE* f = stdout) NE { rebind(f); }
  fastout(fastout CR) = delete;
  fastout& operator=(fastout CR) = delete;
  ~fastout() NE { flush(); }
  void rebind(FILE* f) NE { f_ = f, p = buf; }
  void flush() NE { fwrite(buf, 1, usz(p - buf), f_), p = buf; }
  fastout& operator<<(char_c auto n) NE {
    if (p == ed) [[unlikely]]
      flush();
    *(p++) = n;
    return *this;
  }
  fastout& operator<<(chr CP n) NE { return write_str(n); }
  fastout& operator<<(strn CR str) NE { return write_str(str.data(), str.size()); }
  fastout& operator<<(strnv str) NE { return write_str(str.data(), str.size()); }
  template <class T>
  requires(smost64_c<T> && !char_c<T>)
  fastout& operator<<(T n) NE {
    if CEXP (sizeof(T) < sizeof(i32)) return *this << (i32)n;
    else {
      if (n < 0) return *this << '-' << -to_uint_t<T>(n);
      return *this << to_uint_t<T>(n);
    }
  }
  template <class T>
  requires(umost64_c<T> && !char_c<T>)
  fastout& operator<<(T n) NE {
    if CEXP (std::same_as<T, bool>) return *this << (chr(n | '0'));
    else if CEXP (sizeof(T) < sizeof(u32)) return *this << (u32)n;
    else if (usz(p - buf) >= BUF - INTBUF) [[unlikely]] {
      auto res = std::to_chars(int_buf, int_buf + INTBUF, n);
      return write_str(int_buf, usz(res.ptr - int_buf));
    } else {
      auto res = std::to_chars(p, buf + BUF, n);
      p = res.ptr;
      return *this;
    }
  }
  fastout& operator<<(std::floating_point auto n) NE {
    if (usz(p - buf) >= BUF - INTBUF) [[unlikely]] {
      auto res = std::to_chars(int_buf, int_buf + INTBUF, n, fmt, precision);
      return write_str(int_buf, usz(res.ptr - int_buf));
    } else {
      auto res = std::to_chars(p, buf + BUF, n, fmt, precision);
      p = res.ptr;
      return *this;
    }
  }
  fastout& setf(std::chars_format f) NE {
    fmt = f;
    return *this;
  }
  //! only tested in libstdc++
  fastout& operator<<(decltype(std::setprecision(0)) p) NE {
    precision = *(int*)(&p);
    return *this;
  }
  fastout& operator<<(fastout& (*func)(fastout&)) NE { return func(*this); }
};
inline fastout fout;
inline fastout& scientific(fastout& f) NE { return f.setf(std::chars_format::scientific); }
inline fastout& fixed(fastout& f) NE { return f.setf(std::chars_format::fixed); }
inline fastout& hexfloat(fastout& f) NE { return f.setf(std::chars_format::hex); }
inline fastout& defaultfloat(fastout& f) NE { return f.setf(std::chars_format::general); }
inline fastout& endl(fastout& f) NE {
  (f << '\n').flush();
  return f;
}
using std::setprecision;

}  // namespace tifa_libs
#line 2 "src/io/i128/lib.hpp"

#line 2 "src/util/traits/others/lib.hpp"
// clang-format off
#line 4 "src/util/traits/others/lib.hpp"

namespace tifa_libs {

//! only for template without non-type argument
template <class, template <class...> class> CEXP bool specialized_from_v = false;
template <template <class...> class T, class... Args> CEXP bool specialized_from_v<T<Args...>, T> = true;
static_assert(specialized_from_v<vecu, std::vector>);
template <class T> concept container_c = common_range<T> && !std::is_array_v<std::remove_cvref_t<T>> && !std::same_as<std::remove_cvref_t<T>, strn> && !std::same_as<std::remove_cvref_t<T>, strnv>;
template <class T> concept istream_c = std::derived_from<T, std::istream> || std::derived_from<T, std::wistream> || requires(T is) { is.peek(); };
template <class T> concept ostream_c = std::derived_from<T, std::ostream> || std::derived_from<T, std::wostream> || requires(T os) { os.flush(); };

}  // namespace tifa_libs
// clang-format on
#line 5 "src/io/i128/lib.hpp"

namespace tifa_libs {
namespace ios128_impl_ {
auto& read(tifa_libs::istream_c auto& is, tifa_libs::u128_c auto& n) {
  static strn int_buf;
  int_buf.reserve(43), n = 0, is >> int_buf;
  for (u32 i = 0; i + 1 < int_buf.size(); i += 2) (n *= 100) += STR2U16[*(u16*)(int_buf.data() + i)];
  if (int_buf.size() & 1) (n *= 10) += int_buf.back() & 15;
  return is;
}
}  // namespace ios128_impl_

auto& operator>>(tifa_libs::istream_c auto& is, tifa_libs::s128_c auto& n) NE {
  bool neg = false;
  if CEXP (requires { is.skip_nnegdigit(); }) neg = (is.skip_nnegdigit().peek() == '-' && is.get_unchk());
  else
    while (!neg && !isdigit(is.peek())) {
      if (is.peek() == '-') neg = true;
      is.get();
    }
  u128 n_ = 0;
  if (ios128_impl_::read(is, n_); neg) n_ = -n_;
  n = (i128)n_;
  return is;
}
auto& operator>>(tifa_libs::istream_c auto& is, tifa_libs::u128_c auto& n) NE {
  if CEXP (requires { is.skip_ndigit(); }) is.skip_ndigit();
  else
    while (!isdigit(is.peek())) is.get();
  return ios128_impl_::read(is, n);
}
auto& operator<<(tifa_libs::ostream_c auto& os, tifa_libs::u128_c auto n) NE {
  static strn int_buf(40, '\0');
  auto it = end(int_buf);
  do *(--(it)) = chr(n % 10) | '0';
  while (n /= 10);
  return os << int_buf.substr(usz(it - begin(int_buf)));
}
auto& operator<<(tifa_libs::ostream_c auto& os, tifa_libs::s128_c auto n) NE {
  if (n < 0) return os << '-' << -(u128)n;
  return os << (u128)n;
}

}  // namespace tifa_libs
#line 2 "test/cpv_local/base.hpp"

#line 2 "src/io/container/lib.hpp"

#line 4 "src/io/container/lib.hpp"

namespace tifa_libs {

auto& operator>>(tifa_libs::istream_c auto& is, tifa_libs::container_c auto& x) NE {
  for (auto& i : x) is >> i;
  return is;
}
auto& operator<<(tifa_libs::ostream_c auto& os, tifa_libs::container_c auto CR x) NE {
  if (begin(x) == end(x)) [[unlikely]]
    return os;
  auto it = begin(x);
  for (os << *it++; it != end(x); ++it) os << ' ' << *it;
  return os;
}

}  // namespace tifa_libs
#line 2 "src/io/pair/lib.hpp"

#line 4 "src/io/pair/lib.hpp"

namespace tifa_libs {

template <class T, class U>
auto& operator>>(tifa_libs::istream_c auto& is, std::pair<T, U>& p) NE { return is >> p.first >> p.second; }
template <class T, class U>
auto& operator<<(tifa_libs::ostream_c auto& os, std::pair<T, U> CR p) NE { return os << p.first << ' ' << p.second; }

}  // namespace tifa_libs
#line 2 "src/io/tuple/lib.hpp"

#line 4 "src/io/tuple/lib.hpp"

namespace tifa_libs {

template <class... Ts>
auto& operator>>(tifa_libs::istream_c auto& is, std::tuple<Ts...>& p) NE {
  std::apply([&](Ts&... ts) NE { (is >> ... >> ts); }, p);
  return is;
}
template <class... Ts>
auto& operator<<(tifa_libs::ostream_c auto& os, std::tuple<Ts...> CR p) NE {
  std::apply([&, n = 0](Ts const&... ts) mutable NE { ((os << ts << (++n != sizeof...(Ts) ? " " : "")), ...); }, p);
  return os;
}

}  // namespace tifa_libs
#line 7 "test/cpv_local/base.hpp"

namespace tifa_libs {

namespace detail__ {

template <class T>
strn to_str(T CR x) NE {
  std::stringstream ss;
  ss << std::fixed << std::setprecision(12) << x;
  auto str = ss.str();
  retif_((str.length() <= 1024), str, std::format("{}... (length = {})", str.substr(0, 1024), std::to_string(str.length())));
}

template <class T, class... Ts>
void check_(strnv pretty_func, strnv got_str, T CR got, strnv want_str, T CR want, Ts... param) {
  if CEXP (sizeof...(param) == 0) {
    if (got != want) throw std::runtime_error(std::format("{}: got \"{}\" = {}, want \"{}\" = {}", pretty_func, got_str, to_str(got), want_str, to_str(want)));
  } else {
    if (got != want) throw std::runtime_error(std::format("{}: got \"{}\" = {}, want \"{}\" = {} with", pretty_func, got_str, to_str(got), want_str, to_str(want)) + (std::format(" {} = {};", param.first, ::tifa_libs::detail__::to_str(param.second)) + ...));
  }
}

template <class... Ts>
void check_bool_(strnv pretty_func, strnv expression, bool res, Ts... param) {
  if CEXP (sizeof...(param) == 0) {
    if (!res) throw std::runtime_error(std::format("{} :\"{}\" failed", pretty_func, expression));
  } else {
    if (!res) throw std::runtime_error(std::format("{} :\"{}\" failed with", pretty_func, expression) + (std::format(" {} = {};", param.first, ::tifa_libs::detail__::to_str(param.second)) + ...));
  }
}

}  // namespace detail__

template <class clock_t = std::chrono::high_resolution_clock, class duration_t = std::chrono::microseconds>
requires specialized_from_v<duration_t, std::chrono::duration>
struct timer {
  void tic(int line_num) NE {
    s_line_num = line_num;
    const std::lock_guard<std::mutex> lock(s_clock_mutex);
    s_clock_start = clock_t::now();
  }
  void tac() NE {
    const std::lock_guard<std::mutex> lock(s_clock_mutex);
    s_clock_end = clock_t::now();
  }
  auto passed() CNE { return std::chrono::duration_cast<duration_t>(s_clock_end - s_clock_start); }
  operator strn() { return std::format("{} passed in line {}", passed(), s_line_num); }

 private:
  std::mutex s_clock_mutex;
  std::chrono::time_point<clock_t> s_clock_start, s_clock_end;
  int s_line_num;
};
inline timer default_timer;

#define timer_(...)                         \
  ::tifa_libs::default_timer.tic(__LINE__); \
  __VA_ARGS__;                              \
  ::tifa_libs::default_timer.tac();         \
  std::cerr << (strn)::tifa_libs::default_timer << '\n'

#define check(got, want, ...) ::tifa_libs::detail__::check_(__PRETTY_FUNCTION__, #got, got, #want, want __VA_OPT__(, ) __VA_ARGS__)
#define check_bool(expression, ...) ::tifa_libs::detail__::check_bool_(__PRETTY_FUNCTION__, #expression, expression __VA_OPT__(, ) __VA_ARGS__)
#define check_param(x) \
  std::pair<std::string, decltype(x)> { #x, x }

}  // namespace tifa_libs
#line 7 "test/cpv_local/io/fio.cpp"

using namespace tifa_libs;

strn fn_in = "test/cpv_local/_data/others/io/io.in";
strn fn_ans = "test/cpv_local/_data/others/io/io.out";

template <class T>
void single_test() {
  CEXP T MIN = [] {
    if CEXP (imost64_c<T>) return std::numeric_limits<T>::min();
    else if (sint_c<T>) return (T)1 << (sizeof(T) * 8 - 1);
    else return (T)0;
  }(),
         MAX = (T)~MIN;

  T x;
  FILE* f;

  f = fopen(fn_in.c_str(), "w");
  fout.rebind(f);
  fout << MIN;
  fout.flush();
  fout.rebind(stdout);
  fclose(f);
  f = fopen(fn_in.c_str(), "r");
  fid_stdin.rebind(f);
  fin >> x;
  fid_stdin.rebind(stdin);
  fclose(f);
  check(x, MIN);

  f = fopen(fn_in.c_str(), "w");
  fout.rebind(f);
  fout << MAX;
  fout.flush();
  fout.rebind(stdout);
  fclose(f);
  f = fopen(fn_in.c_str(), "r");
  fid_stdin.rebind(f);
  fin >> x;
  fid_stdin.rebind(stdin);
  fclose(f);
  check(x, MAX);
}

int main() {
  timer_(single_test<i16>());
  timer_(single_test<u16>());
  timer_(single_test<i32>());
  timer_(single_test<u32>());
  timer_(single_test<i64>());
  timer_(single_test<u64>());
  timer_(single_test<i128>());
  timer_(single_test<u128>());
}
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