#pragma GCC optimize("O3") #pragma GCC optimize("fast-math") #pragma GCC optimize("unroll-loops") #pragma GCC target("avx") #pragma GCC target("avx2") #include using namespace std; using i8 = std::int8_t; using u8 = std::uint8_t; using i16 = std::int16_t; using u16 = std::uint16_t; using i32 = std::int32_t; using u32 = std::uint32_t; using i64 = std::int64_t; using u64 = std::uint64_t; using i128 = __int128_t; using u128 = __uint128_t; using ll = long long; using ull = unsigned long long; using fl = float; using db = double; using ld = long double; using pii = std::pair; using pll = std::pair; using vi = std::vector; using vll = std::vector; using vvi = std::vector>; using vvll = std::vector>; using vvvi = std::vector>>; using vvvll = std::vector>>; using vvvvi = std::vector>>>; using vvvvll = std::vector>>>; using vb = std::basic_string; using vvb = std::vector>; using vvvb = std::vector>>; using vstr = std::vector; using vvstr = std::vector>; using vvvstr = std::vector>>; using vpii = std::vector>; using vpll = std::vector>; using vvpii = std::vector>>; using vvpll = std::vector>>; using vvvpii = std::vector>>>; using vvvpll = std::vector>>>; using seti = std::set; using setll = std::set; using vseti = std::vector>; using vsetll = std::vector>; using vvseti = std::vector>>; using vvsetll = std::vector>>; using mapii = std::map; using mapll = std::map; using vmapii = std::vector>; using vmapll = std::vector>; using vvmapii = std::vector>>; using vvmapll = std::vector>>; template using vec = std::vector; template using vec2 = std::vector>; template using vec3 = std::vector>>; template using vec4 = std::vector>>>; template using maxheap = std::priority_queue, std::less>; template using minheap = std::priority_queue, std::greater>; #define ALL(V) std::begin(V), std::end(V) #define RALL(V) std::rbegin(V), std::rend(V) #define ALLMID(V, n) std::begin(V), std::next(std::begin(V), n), std::end(V) #define MIN(T) (std::numeric_limits::lowest()) #define MAX(T) (std::numeric_limits::max()) #define EXPR(...) (([&]() __VA_ARGS__)()) #define LAMBDA(...) ([&](const auto&... _args_) { return (__VA_ARGS__); }) #define ARG(idx) (std::get<(idx)>(std::forward_as_tuple(_args_...))) #if __cplusplus >= 202001U #define REP_VAR_NAME(n) REP_VAR_NAME_(n) #define REP_VAR_NAME_(n) variable_for_loop_##n #define REP_OVERLOAD4(a, b, c, d, e, ...) e #define REP1(N) for ([[maybe_unused]] const auto REP_VAR_NAME(__LINE__) : std::views::iota(std::decay_t{}, N)) #define REP2(i, N) for ([[maybe_unused]] const auto i : std::views::iota(std::decay_t{}, N)) #define REP3(i, A, B) for ([[maybe_unused]] const auto i : std::views::iota(static_cast>(A), static_cast>(B))) #define REP4(i, A, B, C) for ([[maybe_unused]] std::common_type_t i = (A); std::less{}(i, (B)); i += (C)) #define REP1_REV(N) for ([[maybe_unused]] const auto REP_VAR_NAME(__LINE__) : std::views::iota(std::decay_t{}, N) | std::views::reverse) #define REP2_REV(i, N) for ([[maybe_unused]] const auto i : std::views::iota(std::decay_t{}, N) | std::views::reverse) #define REP3_REV(i, A, B) for ([[maybe_unused]] const auto i : std::views::iota(static_cast>(A), static_cast>(B)) | std::views::reverse) #define REP4_REV(i, A, B, C) for ([[maybe_unused]] std::common_type_t i = (B) -1; std::less{}((A) -1, i); i -= (C)) #define rep(...) REP_OVERLOAD4(__VA_ARGS__, REP4, REP3, REP2, REP1)(__VA_ARGS__) #define rrep(...) REP_OVERLOAD4(__VA_ARGS__, REP4_REV, REP3_REV, REP2_REV, REP1_REV)(__VA_ARGS__) #if __GNUC__ >= 12 #define repin(T, i, N) for ([[maybe_unused]] const auto i : std::views::istream>(std::cin) | std::views::take(N)) #endif #else #define rep(i, N) for ([[maybe_unused]] auto i = std::decay_t{ 0 }; i != (N); ++i) #define rrep(i, N) for ([[maybe_unused]] auto i = (N) -1; i != -1; --i) #define range(i, A, B) for ([[maybe_unused]] auto i = (A); i != (B); ++i) #define rrange(i, A, B) for ([[maybe_unused]] auto i = (B) -1; i != (A) -1; --i) #endif #include #include // Thanks for https://zenn.dev/mizar/articles/fc87d667153080 class FastIstream : public std::ios_base { constexpr static int buffersize = (1 << 18) - 1; char buffer[buffersize + 1]; char* cur = buffer; char* eof = buffer; inline void reload(ptrdiff_t w) { if (eof - w < cur) [[unlikely]] { if (eof == buffer + buffersize) [[likely]] { ptrdiff_t rem = eof - cur; std::memcpy(buffer, cur, rem); *(eof = buffer + rem + read(0, buffer + rem, buffersize - rem)) = '\0'; cur = buffer; } else if (eof <= cur) { *(eof = buffer + read(0, buffer, buffersize)) = '\0'; cur = buffer; } } } public: FastIstream& operator>>(bool& n) { reload(2); n = *cur == '1'; cur += 2; return *this; } FastIstream& operator>>(short& n) { reload(8); short neg = (*cur == '-') * -2 + 1; cur += neg == -1; uint64_t tmp = *(uint64_t*) cur ^ 0x3030303030303030u; int clz = std::countl_zero((tmp & 0x1010101010101010u) & (-(tmp & 0x1010101010101010u))) + 5; cur += (72 - clz) >> 3; tmp = ((tmp << clz) * 0xa01ull) >> 8 & 0x00ff00ff00ff00ffull; tmp = (tmp * 0x640001ull) >> 16 & 0x0000ffff0000ffffull; n = (short) ((tmp * 0x271000000001ull) >> 32) * neg; return *this; } FastIstream& operator>>(unsigned short& n) { reload(8); uint64_t tmp = *(uint64_t*) cur ^ 0x3030303030303030u; int clz = std::countl_zero((tmp & 0x1010101010101010u) & (-(tmp & 0x1010101010101010u))) + 5; cur += (72 - clz) >> 3; tmp = ((tmp << clz) * 0xa01ull) >> 8 & 0x00ff00ff00ff00ffull; tmp = (tmp * 0x640001ull) >> 16 & 0x0000ffff0000ffffull; n = (unsigned short) ((tmp * 0x271000000001ull) >> 32); return *this; } FastIstream& operator>>(unsigned int& n) { reload(16); uint64_t tmp = *(uint64_t*) cur ^ 0x3030303030303030u, tmp2 = tmp & 0x1010101010101010u; if (tmp2) { int clz = std::countl_zero(tmp2 & -tmp2) + 5; cur += (72 - clz) >> 3; tmp = ((tmp << clz) * 0xa01ull) >> 8 & 0x00ff00ff00ff00ffull; tmp = (tmp * 0x640001ull) >> 16 & 0x0000ffff0000ffffull; n = (unsigned) ((tmp * 0x271000000001ull) >> 32); } else { cur += 8; tmp = (tmp * 0xa01ull) >> 8 & 0x00ff00ff00ff00ffull; tmp = (tmp * 0x640001ull) >> 16 & 0x0000ffff0000ffffull; n = (unsigned) ((tmp * 0x271000000001ull) >> 32); if (char c = *(cur++); c >= '0') { n = 10 * n + (c - '0'); if ((c = *(cur++)) >= '0') n = 10 * n + (c - '0'), ++cur; } } return *this; } FastIstream& operator>>(int& n) { reload(16); int neg = (*cur == '-') * -2 + 1; cur += neg == -1; uint64_t tmp = *(uint64_t*) cur ^ 0x3030303030303030u, tmp2 = tmp & 0x1010101010101010u; if (tmp2) { int clz = std::countl_zero(tmp2 & -tmp2) + 5; cur += (72 - clz) >> 3; tmp = ((tmp << clz) * 0xa01ull) >> 8 & 0x00ff00ff00ff00ffull; tmp = (tmp * 0x640001ull) >> 16 & 0x0000ffff0000ffffull; n = (int) ((tmp * 0x271000000001ull) >> 32); } else { cur += 8; tmp = (tmp * 0xa01ull) >> 8 & 0x00ff00ff00ff00ffull; tmp = (tmp * 0x640001ull) >> 16 & 0x0000ffff0000ffffull; n = (int) ((tmp * 0x271000000001ull) >> 32); if (char c = *(cur++); c >= '0') { n = 10 * n + (c - '0'); if ((c = *(cur++)) >= '0') n = 10 * n + (c - '0'), ++cur; } } n *= neg; return *this; } FastIstream& operator>>(unsigned long long& n) { reload(32); #ifndef __AVX512VL__ n = 0; while (*cur >= '0') n = 10 * n + (*(cur++) - '0'); ++cur; #else unsigned long long tmp[3], tmp2[3]; std::memcpy(tmp, cur, 24); int width; if ((tmp2[0] = (tmp[0] ^= 0x3030303030303030) & 0x1010101010101010)) [[unlikely]] { width = std::countr_zero(tmp2[0]) - 4; n = ((((((tmp[0] << (64 - width)) * 0xa01ull) >> 8 & 0x00ff00ff00ff00ffull) * 0x640001ull) >> 16 & 0x0000ffff0000ffffull) * 0x271000000001ull) >> 32; cur += (width >> 3) + 1; } else { __m256i tmp3; if ((tmp2[1] = (tmp[1] ^= 0x3030303030303030) & 0x1010101010101010)) [[unlikely]] { width = 60 + std::countr_zero(tmp2[1]); if (width == 64) [[unlikely]] tmp3 = _mm256_setr_epi64x(0, 0, 0, tmp[0]); else tmp3 = _mm256_setr_epi64x(0, 0, tmp[0] << (128 - width), tmp[1] << (128 - width) | tmp[0] >> (width - 64)); } else { width = 124 + std::countr_zero((tmp[2] ^= 0x3030303030303030) & 0x1010101010101010); if (width == 128) [[unlikely]] tmp3 = _mm256_setr_epi64x(0, 0, tmp[0], tmp[1]); else tmp3 = _mm256_setr_epi64x(0, tmp[0] << (192 - width), tmp[1] << (192 - width) | tmp[0] >> (width - 128), tmp[2] << (192 - width) | tmp[1] >> (width - 128)); } cur += (width >> 3) + 1; alignas(32) unsigned long long res[4]; _mm256_store_epi64(res, _mm256_srli_epi64(_mm256_mullo_epi64(_mm256_srli_epi32(_mm256_mullo_epi32(_mm256_srli_epi16(_mm256_mullo_epi16(_mm256_and_si256(tmp3, _mm256_set1_epi8(0x0f)), _mm256_set1_epi16(0xa01)), 8), _mm256_set1_epi32(0x640001)), 16), _mm256_set1_epi64x(0x271000000001)), 32)); n = res[1] * 10000000000000000 + res[2] * 100000000 + res[3]; } #endif return *this; } FastIstream& operator>>(long long& n) { reload(32); long long neg = (*cur == '-') * -2 + 1; cur += neg == -1; #ifndef __AVX512VL__ n = 0; while (*cur >= '0') n = 10 * n + (*(cur++) - '0'); ++cur; n *= neg; #else unsigned long long tmp[3], tmp2[3]; std::memcpy(tmp, cur, 24); int width; if ((tmp2[0] = (tmp[0] ^= 0x3030303030303030) & 0x1010101010101010)) [[unlikely]] { width = std::countr_zero(tmp2[0]) - 4; n = neg * (((((((tmp[0] << (64 - width)) * 0xa01ull) >> 8 & 0x00ff00ff00ff00ffull) * 0x640001ull) >> 16 & 0x0000ffff0000ffffull) * 0x271000000001ull) >> 32); cur += (width >> 3) + 1; } else { __m256i tmp3; if ((tmp2[1] = (tmp[1] ^= 0x3030303030303030) & 0x1010101010101010)) [[unlikely]] { width = 60 + std::countr_zero(tmp2[1]); if (width == 64) [[unlikely]] tmp3 = _mm256_setr_epi64x(0, 0, 0, tmp[0]); else tmp3 = _mm256_setr_epi64x(0, 0, tmp[0] << (128 - width), tmp[1] << (128 - width) | tmp[0] >> (width - 64)); } else { width = 124 + std::countr_zero((tmp[2] ^= 0x3030303030303030) & 0x1010101010101010); if (width == 128) [[unlikely]] tmp3 = _mm256_setr_epi64x(0, 0, tmp[0], tmp[1]); else tmp3 = _mm256_setr_epi64x(0, tmp[0] << (192 - width), tmp[1] << (192 - width) | tmp[0] >> (width - 128), tmp[2] << (192 - width) | tmp[1] >> (width - 128)); } cur += (width >> 3) + 1; alignas(32) long long res[4]; _mm256_store_epi64(res, _mm256_srli_epi64(_mm256_mullo_epi64(_mm256_srli_epi32(_mm256_mullo_epi32(_mm256_srli_epi16(_mm256_mullo_epi16(_mm256_and_si256(tmp3, _mm256_set1_epi8(0x0f)), _mm256_set1_epi16(0xa01)), 8), _mm256_set1_epi32(0x640001)), 16), _mm256_set1_epi64x(0x271000000001)), 32)); n = neg * (res[1] * 10000000000000000 + res[2] * 100000000 + res[3]); } #endif return *this; } FastIstream& operator>>(long& n) { long long x; operator>>(x); n = x; return *this; } FastIstream& operator>>(unsigned long& n) { unsigned long long x; operator>>(x); n = x; return *this; } friend FastIstream& operator>>(FastIstream& is, char& c) { is.reload(2); c = *is.cur; is.cur += 2; return is; } friend FastIstream& operator>>(FastIstream& is, unsigned char& c) { is.reload(2); c = *is.cur; is.cur += 2; return is; } friend FastIstream& operator>>(FastIstream& is, signed char& c) { is.reload(2); c = *is.cur; is.cur += 2; return is; } friend FastIstream& operator>>(FastIstream& is, char* s) { while (true) { while (*is.cur > ' ' && is.cur != is.eof) *(s++) = *is.cur, ++is.cur; if (is.cur == is.eof) is.reload(is.buffersize); else break; } ++is.cur; *s = '\0'; return is; } friend FastIstream& operator>>(FastIstream& is, std::string& s) { s.clear(); while (true) { char* st = is.cur; while (*is.cur > ' ' && is.cur != is.eof) ++is.cur; s += std::string_view(st, is.cur - st); if (is.cur == is.eof) is.reload(is.buffersize); else break; } ++is.cur; return is; } FastIstream& operator>>(float& f) { std::string s; (*this) >> s; std::from_chars(s.c_str(), s.c_str() + s.length(), f); return *this; } FastIstream& operator>>(double& f) { std::string s; (*this) >> s; std::from_chars(s.c_str(), s.c_str() + s.length(), f); return *this; } FastIstream& operator>>(long double& f) { std::string s; (*this) >> s; std::from_chars(s.c_str(), s.c_str() + s.length(), f); return *this; } template friend FastIstream& operator>>(FastIstream& is, T& x) { for (auto& v : x) is >> v; return is; } } fin; class FastOstream : public std::ios_base { constexpr static int buffersize = 1 << 18; char buffer[buffersize]; char* cur = buffer; inline void reload(ptrdiff_t w) { if (buffer + buffersize - w < cur) [[unlikely]] { [[maybe_unused]] int r = write(1, buffer, cur - buffer); cur = buffer; } } constexpr static std::array strtable = []() { std::array res; for (unsigned i = 0; i < 10000; ++i) { unsigned tmp[4]; unsigned n = i; tmp[3] = (n % 10 + '0') << 24, n /= 10; tmp[2] = (n % 10 + '0') << 16, n /= 10; tmp[1] = (n % 10 + '0') << 8, n /= 10; tmp[0] = n % 10 + '0'; res[i] = tmp[0] + tmp[1] + tmp[2] + tmp[3]; } return res; }(); constexpr static std::array strtable2 = []() { std::array res; for (unsigned i = 0; i < 10000; ++i) { unsigned tmp[4]; unsigned n = i; if (i < 10) n *= 1000; else if (i < 100) n *= 100; else if (i < 1000) n *= 10; tmp[3] = (n % 10 + '0') << 24, n /= 10; tmp[2] = (n % 10 + '0') << 16, n /= 10; tmp[1] = (n % 10 + '0') << 8, n /= 10; tmp[0] = n % 10 + '0'; res[i] = tmp[0] + tmp[1] + tmp[2] + tmp[3]; } return res; }(); template void putfloat(T f) { bool fixed = flags() & std::ios_base::fixed; bool scientific = flags() & std::ios_base::scientific; bool uppercase = flags() & std::ios_base::uppercase; if (fixed && scientific && (flags() & std::ios_base::showbase)) { std::memcpy(cur, (uppercase ? "0X" : "0x"), 2); cur += 2; } std::chars_format fmt = (fixed ? (scientific ? std::chars_format::hex : std::chars_format::fixed) : (scientific ? std::chars_format::scientific : std::chars_format::general)); auto conv = [&]() { return std::to_chars(cur, buffer + buffersize, f, fmt, precision()); }; auto [ptr, ec] = conv(); char* p; if (ec == std::errc::value_too_large) { reload(buffersize); p = cur; cur = conv().ptr; } else p = cur, cur = ptr; if (uppercase) { while (p != cur) { if (*p > '9') *p -= ('a' - 'A'); ++p; } } } public: FastOstream() { precision(6); setf(std::ios_base::showbase); } ~FastOstream() { reload(buffersize); } FastOstream& flush() { reload(buffersize); return *this; } char widen(char c) const { return c; } FastOstream& put(char c) { reload(1); *(cur++) = c; return *this; } FastOstream& operator<<(std::basic_ostream& (*pf)(std::basic_ostream&) ); FastOstream& operator<<(std::basic_ios& (*pf)(std::basic_ios&) ); FastOstream& operator<<(std::ios_base& (*pf)(std::ios_base&) ) { pf(*this); return *this; } FastOstream& operator<<(bool n) { if (ios_base::flags() & std::ios_base::boolalpha) { if (n) { reload(4); std::memcpy(cur, "true", 4); cur += 4; } else { reload(5); std::memcpy(cur, "false", 5); cur += 5; } } else { reload(1); *(cur++) = '0' + n; } return *this; } FastOstream& operator<<(unsigned short n) { reload(5); if (n >= 10000) { *(cur++) = '0' + n / 10000, n %= 10000; *reinterpret_cast(cur) = strtable[n]; cur += 4; } else if (n >= 1000) { *reinterpret_cast(cur) = strtable[n]; cur += 4; } else if (n >= 100) { *reinterpret_cast(cur) = strtable[n * 10]; cur += 3; } else if (n >= 10) { *(cur++) = '0' + n / 10; *(cur++) = '0' + n % 10; } else *(cur++) = '0' + n; return *this; } FastOstream& operator<<(short n) { reload(6); if (n < 0) *(cur++) = '-', n = -n; if (n >= 10000) { *(cur++) = '0' + n / 10000, n %= 10000; *reinterpret_cast(cur) = strtable[n]; cur += 4; } else if (n >= 1000) { *reinterpret_cast(cur) = strtable[n]; cur += 4; } else if (n >= 100) { *reinterpret_cast(cur) = strtable[n * 10]; cur += 3; } else if (n >= 10) { *reinterpret_cast(cur) = strtable[n * 100]; cur += 2; } else *(cur++) = '0' + n; return *this; } FastOstream& operator<<(unsigned n) { reload(10); unsigned long long buf = 0; char d = 0; if (n >= 100000000) { d = 8; buf = static_cast(strtable[n % 10000]) << 32 | strtable[(n / 10000) % 10000]; n /= 100000000; } else if (n >= 10000) { d = 4; buf = strtable[n % 10000]; n /= 10000; } *reinterpret_cast(cur) = strtable2[n]; cur += (n >= 10) + (n >= 100) + (n >= 1000) + 1; *reinterpret_cast(cur) = buf; cur += d; return *this; } FastOstream& operator<<(int n) { reload(11); if (n < 0) *(cur++) = '-', n = -n; unsigned long long buf = 0; char d = 0; if (n >= 100000000) { d = 8; buf = static_cast(strtable[n % 10000]) << 32 | strtable[(n / 10000) % 10000]; n /= 100000000; } else if (n >= 10000) { d = 4; buf = strtable[n % 10000]; n /= 10000; } *reinterpret_cast(cur) = strtable2[n]; cur += (n >= 10) + (n >= 100) + (n >= 1000) + 1; *reinterpret_cast(cur) = buf; cur += d; return *this; } FastOstream& operator<<(unsigned long long n) { reload(20); static unsigned buf[4]; int d = 0; if (n >= 10000000000000000) { d = 16; buf[3] = strtable[n % 10000], n /= 10000; buf[2] = strtable[n % 10000], n /= 10000; buf[1] = strtable[n % 10000], n /= 10000; buf[0] = strtable[n % 10000], n /= 10000; } else if (n >= 1000000000000) { d = 12; buf[2] = strtable[n % 10000], n /= 10000; buf[1] = strtable[n % 10000], n /= 10000; buf[0] = strtable[n % 10000], n /= 10000; } else if (n >= 100000000) { d = 8; buf[1] = strtable[n % 10000], n /= 10000; buf[0] = strtable[n % 10000], n /= 10000; } else if (n >= 10000) { d = 4; buf[0] = strtable[n % 10000], n /= 10000; } *(unsigned*) cur = strtable2[n]; cur += (n >= 10) + (n >= 100) + (n >= 1000) + 1; std::memcpy(cur, buf, d); cur += d; return *this; } FastOstream& operator<<(long long n) { reload(21); if (n < 0) *(cur++) = '-', n = -n; static unsigned buf[4]; char d = 0; if (n >= 10000000000000000) { d = 16; buf[3] = strtable[n % 10000], n /= 10000; buf[2] = strtable[n % 10000], n /= 10000; buf[1] = strtable[n % 10000], n /= 10000; buf[0] = strtable[n % 10000], n /= 10000; } else if (n >= 1000000000000) { d = 12; buf[2] = strtable[n % 10000], n /= 10000; buf[1] = strtable[n % 10000], n /= 10000; buf[0] = strtable[n % 10000], n /= 10000; } else if (n >= 100000000) { d = 8; buf[1] = strtable[n % 10000], n /= 10000; buf[0] = strtable[n % 10000], n /= 10000; } else if (n >= 10000) { d = 4; buf[0] = strtable[n % 10000], n /= 10000; } *(unsigned*) cur = strtable2[n]; cur += (n >= 10) + (n >= 100) + (n >= 1000) + 1; std::memcpy(cur, buf, d); cur += d; return *this; } FastOstream& operator<<(long n) { return operator<<(static_cast(n)); } FastOstream& operator<<(unsigned long n) { return operator<<(static_cast(n)); } FastOstream& operator<<(float f) { reload(16); putfloat(f); return *this; } FastOstream& operator<<(double f) { reload(32); putfloat(f); return *this; } FastOstream& operator<<(long double f) { reload(64); putfloat(f); return *this; } FastOstream& operator<<(const void* p) { reload(18); if (flags() & std::ios_base::showbase) { *cur = '0'; *(cur + 1) = flags() & std::ios_base::uppercase ? 'X' : 'x'; cur += 2; } cur = std::to_chars(cur, buffer + buffersize, reinterpret_cast(p), 16).ptr; return *this; } FastOstream& operator<<(std::nullptr_t) { reload(7); std::memcpy(cur, "nullptr", 7); cur += 7; return *this; } friend FastOstream& operator<<(FastOstream& os, char c) { os.reload(1); *(os.cur++) = c; return os; } friend FastOstream& operator<<(FastOstream& os, signed char c) { os.reload(1); *(os.cur++) = c; return os; } friend FastOstream& operator<<(FastOstream& os, unsigned char c) { os.reload(1); *(os.cur++) = c; return os; } friend FastOstream& operator<<(FastOstream& os, const char* s) { size_t n = std::strlen(s); if (n >= os.buffersize) { os.reload(buffersize); write(1, s, n); } else { os.reload(n); std::memcpy(os.cur, s, n); os.cur += n; } return os; } friend FastOstream& operator<<(FastOstream& os, const std::string& s) { size_t n = s.length(); if (n >= os.buffersize) { os.reload(buffersize); write(1, s.data(), n); } else { os.reload(n); std::memcpy(os.cur, s.data(), n); os.cur += n; } return os; } friend FastOstream& operator<<(FastOstream& os, std::string_view s) { size_t n = s.length(); if (n >= os.buffersize) { os.reload(buffersize); write(1, s.data(), n); } else { os.reload(n); std::memcpy(os.cur, s.data(), n); os.cur += n; } return os; } template friend FastOstream& operator<<(FastOstream& os, const T& v) { size_t n = std::distance(std::ranges::begin(v), std::ranges::end(v)), cnt = 0; for (const auto& x : v) { os << x; if (++cnt != n) os << ' '; } return os; } #if __GNUC__ >= 6 friend FastOstream& operator<<(FastOstream& os, std::_Setprecision prec) { os.precision(prec._M_n); return os; } #endif } fout; namespace std { template<> class basic_ios { protected: FastOstream& ref; public: basic_ios(FastOstream& r) : ref(r) {} char widen(char c) { return ref.widen(c); } }; template<> class basic_ostream : public basic_ios { public: basic_ostream(FastOstream& r) : basic_ios(r) {} basic_ostream& put(char c) { basic_ios::ref.put(c); return *this; } basic_ostream& flush() { basic_ios::ref.flush(); return *this; } }; } // namespace std FastOstream& FastOstream::operator<<(std::basic_ostream& (*pf)(std::basic_ostream&) ) { std::basic_ostream tmp(*this); pf(tmp); return *this; } FastOstream& FastOstream::operator<<(std::basic_ios& (*pf)(std::basic_ios&) ) { std::basic_ios tmp(*this); pf(tmp); return *this; } template class ModintTraits : public T { using base_type = T; public: using value_type = std::decay_t; using modint_type = ModintTraits; constexpr static bool is_staticmod = !requires { base_type::set_mod(0); }; constexpr ModintTraits() noexcept : T() {} template constexpr ModintTraits(U x) noexcept { operator=(x); } constexpr explicit operator value_type() const noexcept { return val(); } constexpr static void set_mod(value_type x) { static_assert(!is_staticmod, "ModintTraits::set_mod / Mod must be dynamic."); if (x <= 1) throw std::runtime_error("ModintTraits::set_mod / Mod must be at least 2."); if (x == mod()) return; base_type::set_mod(x); } constexpr value_type val() const noexcept { return base_type::val(); } constexpr static value_type mod() noexcept { return base_type::mod(); } template constexpr modint_type& operator=(U x) noexcept { static_assert(std::is_integral_v, "ModintTraits::operator= / Only integer types can be assigned."); if constexpr (std::is_unsigned_v) { if constexpr (std::is_same_v || std::is_same_v) base_type::assign(static_cast(x)); else base_type::assign(static_cast(x)); } else { if (x < 0) { if constexpr (std::is_same_v || std::is_same_v) base_type::assign(static_cast(-x)); else base_type::assign(static_cast(-x)); base_type::neg(); } else { if constexpr (std::is_same_v || std::is_same_v) base_type::assign(static_cast(x)); else base_type::assign(static_cast(x)); } } return *this; } constexpr static modint_type raw(value_type x) noexcept { modint_type res; res.rawassign(x); return res; } template friend Istream& operator>>(Istream& ist, modint_type& x) { value_type n; ist >> n; x = n; return ist; } template friend Ostream& operator<<(Ostream& ost, modint_type x) { return ost << x.val(); } constexpr modint_type inv() const { value_type a = 1, b = 0, x = val(), y = mod(); if (x == 0) throw std::runtime_error("ModintTraits::inv / Zero division is not possible."); while (true) { if (x <= 1) { if (x == 0) [[unlikely]] break; else return modint_type::raw(a); } b += a * (y / x); y %= x; if (y <= 1) { if (y == 0) [[unlikely]] break; else return modint_type::raw(mod() - b); } a += b * (x / y); x %= y; } throw std::runtime_error("ModintTraits::inv / Cannot calculate inverse element."); } constexpr modint_type pow(uint64_t e) const noexcept { modint_type res = modint_type::raw(1), pow = *this; while (e) { modint_type tmp = pow * pow; if (e & 1) res *= pow; pow = tmp; e >>= 1; } return res; } constexpr modint_type operator+() const noexcept { return *this; } constexpr modint_type operator-() const noexcept { modint_type res = *this; res.neg(); return res; } constexpr modint_type& operator++() noexcept { base_type::inc(); return *this; } constexpr modint_type& operator--() noexcept { base_type::dec(); return *this; } constexpr modint_type operator++(int) noexcept { modint_type copy = *this; operator++(); return copy; } constexpr modint_type operator--(int) noexcept { modint_type copy = *this; operator--(); return copy; } constexpr modint_type& operator+=(modint_type x) noexcept { base_type::add(x); return *this; } constexpr modint_type& operator-=(modint_type x) noexcept { base_type::sub(x); return *this; } constexpr modint_type& operator*=(modint_type x) noexcept { base_type::mul(x); return *this; } constexpr modint_type& operator/=(modint_type x) { operator*=(x.inv()); return *this; } friend constexpr modint_type operator+(modint_type l, modint_type r) noexcept { return modint_type(l) += r; } friend constexpr modint_type operator-(modint_type l, modint_type r) noexcept { return modint_type(l) -= r; } friend constexpr modint_type operator*(modint_type l, modint_type r) noexcept { return modint_type(l) *= r; } friend constexpr modint_type operator/(modint_type l, modint_type r) { return modint_type(l) /= r; } friend constexpr bool operator==(modint_type l, modint_type r) noexcept { return l.val() == r.val(); } friend constexpr bool operator!=(modint_type l, modint_type r) noexcept { return l.val() != r.val(); } constexpr int legendre() const noexcept { value_type res = pow((mod() - 1) >> 1).val(); return (res <= 1 ? static_cast(res) : -1); } constexpr int jacobi() const noexcept { value_type a = val(), n = mod(); if (a == 1) return 1; if (std::gcd(a, n) != 1) return 0; int res = 1; while (a != 0) { while (!(a & 1) && a != 0) { a >>= 1; if ((n & 0b111) == 3 || (n & 0b111) == 5) res = -res; } if ((a & 0b11) == 3 || (n & 0b11) == 3) res = -res; std::swap(a, n); a %= n; } if (n != 1) return 0; return res; } constexpr modint_type sqrt() const noexcept { const value_type vl = val(), md = mod(); if (vl <= 1) return *this; auto get_min = [](modint_type x) { return x.val() > (mod() >> 1) ? -x : x; }; if ((md & 0b11) == 3) return get_min(pow((md + 1) >> 2)); else if ((md & 0b111) == 5) { modint_type res = pow((md + 3) >> 3); if constexpr (is_staticmod) { constexpr modint_type p = modint_type::raw(2).pow((md - 1) >> 2); res *= p; } else if (res * res != *this) res *= modint_type::raw(2).pow((md - 1) >> 2); return get_min(res); } else { value_type Q = md - 1; uint32_t S = 0; while ((Q & 1) == 0) Q >>= 1, ++S; if (std::countr_zero(md - 1) < 6) { modint_type z = modint_type::raw(1); while (z.legendre() != -1) ++z; modint_type t = pow(Q), R = pow((Q + 1) / 2); if (t.val() == 1) return R; uint32_t M = S; modint_type c = z.pow(Q); do { modint_type U = t * t; uint32_t i = 1; while (U.val() != 1) U = U * U, ++i; modint_type b = c; for (uint32_t j = 0; j < (M - i - 1); ++j) b *= b; M = i, c = b * b, t *= c, R *= b; } while (t.val() != 1); return get_min(R); } else { modint_type a = 1; while ((a * a - *this).legendre() != -1) ++a; modint_type res1 = modint_type::raw(1), res2, pow1 = a, pow2 = modint_type::raw(1), w = a * a - *this; value_type e = (md + 1) / 2; while (true) { if (e & 1) { modint_type tmp = res1; res1 = res1 * pow1 + res2 * pow2 * w; res2 = tmp * pow2 + res2 * pow1; } e >>= 1; if (e == 0) return get_min(res1); modint_type tmp = pow1; pow1 = pow1 * pow1 + pow2 * pow2 * w; pow2 *= modint_type::raw(2) * tmp; } } } } }; template class StaticModint32_impl { using value_type = std::uint32_t; using modint_type = StaticModint32_impl; value_type val_ = 0; protected: constexpr StaticModint32_impl() noexcept {} constexpr value_type val() const noexcept { return val_; } static constexpr value_type mod() noexcept { return mod_; } constexpr void assign(std::uint32_t x) noexcept { val_ = x % mod_; } constexpr void assign(std::uint64_t x) noexcept { val_ = x % mod_; } constexpr void rawassign(value_type x) noexcept { val_ = x; } constexpr void neg() noexcept { val_ = (val_ == 0 ? 0 : mod_ - val_); } constexpr void inc() noexcept { val_ = (val_ == mod_ - 1 ? 0 : val_ + 1); } constexpr void dec() noexcept { val_ = (val_ == 0 ? mod_ - 1 : val_ - 1); } constexpr void add(modint_type x) noexcept { if (mod_ - val_ > x.val_) val_ += x.val_; else val_ = x.val_ - (mod_ - val_); } constexpr void sub(modint_type x) noexcept { if (val_ >= x.val_) val_ -= x.val_; else val_ = mod_ - (x.val_ - val_); } constexpr void mul(modint_type x) noexcept { val_ = static_cast(val_) * x.val_ % mod_; } }; template using StaticModint32 = ModintTraits>; template class StaticModint64_impl { using value_type = std::uint64_t; using modint_type = StaticModint64_impl; value_type val_ = 0; protected: constexpr StaticModint64_impl() noexcept {} constexpr value_type val() const noexcept { return val_; } static constexpr value_type mod() noexcept { return mod_; } constexpr void assign(std::uint32_t x) noexcept { if constexpr (mod_ < (1ull << 32)) val_ = x % mod_; else val_ = x; } constexpr void assign(std::uint64_t x) noexcept { val_ = x % mod_; } constexpr void rawassign(value_type x) noexcept { val_ = x; } constexpr void neg() noexcept { val_ = (val_ == 0 ? 0 : mod_ - val_); } constexpr void inc() noexcept { val_ = (val_ == mod_ - 1 ? 0 : val_ + 1); } constexpr void dec() noexcept { val_ = (val_ == 0 ? mod_ - 1 : val_ - 1); } constexpr void add(modint_type x) noexcept { if (mod_ - val_ > x.val_) val_ += x.val_; else val_ = x.val_ - (mod_ - val_); } constexpr void sub(modint_type x) noexcept { if (val_ >= x.val_) val_ -= x.val_; else val_ = mod_ - (x.val_ - val_); } constexpr void mul(modint_type x) noexcept { val_ = static_cast<__uint128_t>(val_) * x.val_ % mod_; } }; template using StaticModint64 = ModintTraits>; template using StaticModint = std::conditional_t<(mod_ < (1ull << 32)), StaticModint32, StaticModint64>; template class DynamicModint32_impl { using value_type = std::uint32_t; using modint_type = DynamicModint32_impl; static inline value_type mod_ = 0; static inline std::uint64_t mod64_ = 0; static inline __uint128_t L_ = 0; value_type val_ = 0; value_type reduce(std::uint32_t c) const noexcept { std::uint32_t q = (c * L_) >> 96; return c - q * mod_; } value_type reduce(std::uint64_t c) const noexcept { std::uint64_t q = (c * L_) >> 96; return c - q * mod64_; } protected: DynamicModint32_impl() noexcept {} static void set_mod(value_type newmod) noexcept { mod_ = newmod, mod64_ = newmod; L_ = ((__uint128_t(1) << 96) - 1) / mod_ + 1; } value_type val() const noexcept { return val_; } static value_type mod() noexcept { return mod_; } void assign(std::uint32_t x) noexcept { val_ = reduce(x); } void assign(std::uint64_t x) noexcept { val_ = reduce(x); } void rawassign(value_type x) noexcept { val_ = x; } void neg() noexcept { val_ = (val_ == 0 ? 0 : mod_ - val_); } void inc() noexcept { val_ = (val_ == mod_ - 1 ? 0 : val_ + 1); } void dec() noexcept { val_ = (val_ == 0 ? mod_ - 1 : val_ - 1); } void add(modint_type x) noexcept { if (mod_ - val_ > x.val_) val_ += x.val_; else val_ = x.val_ - (mod_ - val_); } void sub(modint_type x) noexcept { if (val_ >= x.val_) val_ -= x.val_; else val_ = mod_ - (x.val_ - val_); } void mul(modint_type x) noexcept { val_ = reduce(static_cast(val_) * x.val_); } }; template using DynamicModint32 = ModintTraits>; template class DynamicModint64_impl { using value_type = std::uint64_t; using modint_type = DynamicModint64_impl; static inline value_type mod_ = 0; static inline __uint128_t mod128_ = 0, M_ = 0; value_type val_ = 0; protected: DynamicModint64_impl() noexcept {} static void set_mod(value_type newmod) noexcept { mod_ = newmod, mod128_ = mod_; M_ = std::numeric_limits<__uint128_t>::max() / mod_ + std::has_single_bit(mod_); } value_type val() const noexcept { return val_; } static value_type mod() noexcept { return mod_; } void assign(std::uint64_t x) noexcept { val_ = x % mod_; } void rawassign(value_type x) noexcept { val_ = x; } void neg() noexcept { val_ = (val_ == 0 ? 0 : mod_ - val_); } void inc() noexcept { val_ = (val_ == mod_ - 1 ? 0 : val_ + 1); } void dec() noexcept { val_ = (val_ == 0 ? mod_ - 1 : val_ - 1); } void add(modint_type x) noexcept { if (mod_ - val_ > x.val_) val_ += x.val_; else val_ = x.val_ - (mod_ - val_); } void sub(modint_type x) noexcept { if (val_ >= x.val_) val_ -= x.val_; else val_ = mod_ - (x.val_ - val_); } void mul(modint_type x) noexcept { std::uint64_t tmp = static_cast<__uint128_t>(val_) * x.val_ - ((((M_ * val_) >> 64) * x.val_) >> 64) * mod128_; val_ = (tmp < mod_ ? tmp : tmp - mod_); } }; template using DynamicModint64 = ModintTraits>; template class ModManager { Modint::value_type prev; public: ModManager() { prev = Modint::mod(); } ~ModManager() { if (prev != 0) Modint::set_mod(prev); } void set_mod(Modint::value_type newmod) { Modint::set_mod(newmod); } }; template bool isPrime32(const std::uint32_t x) { if constexpr (trial_division) { if (x % 2 == 0 || x % 3 == 0 || x % 5 == 0 || x % 7 == 0 || x % 11 == 0 || x % 13 == 0 || x % 17 == 0 || x % 19 == 0 || x % 23 == 0 || x % 29 == 0 || x % 31 == 0 || x % 37 == 0 || x % 41 == 0 || x % 43 == 0) return x <= 43 && (x == 2 || x == 3 || x == 5 || x == 7 || x == 11 || x == 13 || x == 17 || x == 19 || x == 23 || x == 29 || x == 31 || x == 37 || x == 41 || x == 43); if (x < 47 * 47) return (x > 1); } else { if (x % 2 == 0 || x % 3 == 0 || x % 5 == 0 || x % 7 == 0) return x <= 7 && (x == 2 || x == 3 || x == 5 || x == 7); if (x < 11 * 11) return (x > 1); } constexpr std::uint16_t bases[] = { 15591, 2018, 166, 7429, 8064, 16045, 10503, 4399, 1949, 1295, 2776, 3620, 560, 3128, 5212, 2657, 2300, 2021, 4652, 1471, 9336, 4018, 2398, 20462, 10277, 8028, 2213, 6219, 620, 3763, 4852, 5012, 3185, 1333, 6227, 5298, 1074, 2391, 5113, 7061, 803, 1269, 3875, 422, 751, 580, 4729, 10239, 746, 2951, 556, 2206, 3778, 481, 1522, 3476, 481, 2487, 3266, 5633, 488, 3373, 6441, 3344, 17, 15105, 1490, 4154, 2036, 1882, 1813, 467, 3307, 14042, 6371, 658, 1005, 903, 737, 1887, 7447, 1888, 2848, 1784, 7559, 3400, 951, 13969, 4304, 177, 41, 19875, 3110, 13221, 8726, 571, 7043, 6943, 1199, 352, 6435, 165, 1169, 3315, 978, 233, 3003, 2562, 2994, 10587, 10030, 2377, 1902, 5354, 4447, 1555, 263, 27027, 2283, 305, 669, 1912, 601, 6186, 429, 1930, 14873, 1784, 1661, 524, 3577, 236, 2360, 6146, 2850, 55637, 1753, 4178, 8466, 222, 2579, 2743, 2031, 2226, 2276, 374, 2132, 813, 23788, 1610, 4422, 5159, 1725, 3597, 3366, 14336, 579, 165, 1375, 10018, 12616, 9816, 1371, 536, 1867, 10864, 857, 2206, 5788, 434, 8085, 17618, 727, 3639, 1595, 4944, 2129, 2029, 8195, 8344, 6232, 9183, 8126, 1870, 3296, 7455, 8947, 25017, 541, 19115, 368, 566, 5674, 411, 522, 1027, 8215, 2050, 6544, 10049, 614, 774, 2333, 3007, 35201, 4706, 1152, 1785, 1028, 1540, 3743, 493, 4474, 2521, 26845, 8354, 864, 18915, 5465, 2447, 42, 4511, 1660, 166, 1249, 6259, 2553, 304, 272, 7286, 73, 6554, 899, 2816, 5197, 13330, 7054, 2818, 3199, 811, 922, 350, 7514, 4452, 3449, 2663, 4708, 418, 1621, 1171, 3471, 88, 11345, 412, 1559, 194 }; using mint = DynamicModint32<-1>; mint::set_mod(x); std::uint64_t h = x; h = ((h >> 16) ^ h) * 0x45d9f3b; h = ((h >> 16) ^ h) * 0x45d9f3b; h = ((h >> 16) ^ h) & 255; mint cur = bases[h]; std::uint32_t d = x - 1; int s = std::countr_zero(d); d >>= s; cur = cur.pow(d); if (cur.val() == 1) return true; while (--s) { if (cur.val() == x - 1) return true; cur *= cur; } return cur.val() == x - 1; } template bool isPrime64(const std::uint64_t x) { if (x < 4294967296) return isPrime32(x); if constexpr (trial_division) { if (x % 2 == 0 || x % 3 == 0 || x % 5 == 0 || x % 7 == 0 || x % 11 == 0 || x % 13 == 0 || x % 17 == 0 || x % 19 == 0 || x % 23 == 0 || x % 29 == 0 || x % 31 == 0 || x % 37 == 0 || x % 41 == 0 || x % 43 == 0) return false; } else { if (x % 2 == 0) return false; } using mint = DynamicModint64<-1>; mint::set_mod(x); std::uint64_t d = x - 1; const int s = std::countr_zero(d); d >>= s; auto test = [&](std::uint64_t a) -> bool { mint cur = mint(a).pow(d); if (cur.val() <= 1) return true; int i = s; while (--i) { if (cur.val() == x - 1) return true; cur *= cur; } return cur.val() == x - 1; }; return test(2) && test(325) && test(9375) && test(28178) && test(450775) && test(9780504) && test(1795265022); } int main() { int Q; fin >> Q; rep(Q) { ull N; fin >> N; fout << N << ' ' << isPrime64(N) << '\n'; } }