#define READ_NUM_TEST_CASES false #define USE_FAST_IO false #define USE_FAST_ENDL true //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/template.hpp" BEGINS HERE // #include <bits/stdc++.h> using namespace std; //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/abbrevs.hpp" BEGINS HERE // #define UI unsigned int #define LL long long #define ULL unsigned long long #define PII pair<int,int> #define RI ri() #define RUI rui() #define RLL rll() #define RULL rull() #define RSTR rstr() #define FO(i,a,b) for(int i=(a); i<int(b); ++i) #define OF(i,a,b) for(int i=(b)-1; i>=int(a); --i) #define FOR(i,n) FO(i,0,n) #define ROF(i,n) OF(i,0,n) #define MIN(a,b) ((a)<(b) ? (a) : (b)) #define MAX(a,b) ((b)<(a) ? (a) : (b)) #define REMIN(a,b) ((a) = min(a,b)) #define REMAX(a,b) ((a) = max(a,b)) #define ALL(c) (c).begin(),(c).end() #define SQR(x) ((x)*(x)) bool is_pow(int x) { return (x&(x-1)) == 0; } // // AMALGAMATE: "include/abbrevs.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// #if USE_FAST_IO //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/fast-io.hpp" BEGINS HERE // //#define FREAD fread //#define FWRITE fwrite #define FREAD fread_unlocked #define FWRITE fwrite_unlocked struct Buffer { FILE* const stream; const int buffer_size; uint8_t* const buff; int pos = 0; Buffer(FILE* a_stream, int a_buffer_size) : stream( a_stream ), buffer_size( a_buffer_size ), buff( new uint8_t[ buffer_size ] ) { setvbuf(stream, NULL, _IONBF, 0); } ~Buffer() { delete[] buff; } }; class In_Buffer : private Buffer { public: In_Buffer(FILE* a_stream, int a_buffer_size) : Buffer(a_stream, a_buffer_size) { FREAD(buff, 1, buffer_size, stream); } public: void prepare(int num_chars) { auto remaining = buffer_size - pos; if(remaining >= num_chars) return; assert(remaining >= 0); // prevent compiler warning memcpy(buff, buff+pos, remaining); int read = FREAD(buff+remaining, 1, pos, stream); int block_end = remaining + read; memset(buff + block_end, 0, buffer_size - block_end); pos = 0; } public: char get_unchecked() { return buff[ pos++ ]; } }; template<class INT> INT read_unsigned(In_Buffer& buff) { buff.prepare(25); char c = buff.get_unchecked(); while(c < '-') c = buff.get_unchecked(); INT r = 0; for(;;) { if(c < '0') return r; c -= '0'; r = r*10 + c; c = buff.get_unchecked(); } } template<class INT> INT read_signed(In_Buffer& buff) { buff.prepare(25); char c = buff.get_unchecked(); while(c < '-') c = buff.get_unchecked(); bool minus = false; if(c=='-') { c = buff.get_unchecked(); minus = true; } INT r = 0; for(;;) { if(c < '0') return minus ? -r : r; r = r*10 + (c-'0'); c = buff.get_unchecked(); } } In_Buffer& operator>>( In_Buffer& buff, char& c) { buff.prepare(1); c = buff.get_unchecked(); return buff; } In_Buffer& operator>>( In_Buffer& buff, UI& r) { r = read_unsigned<UI>(buff); return buff; } In_Buffer& operator>>( In_Buffer& buff, ULL& r) { r = read_unsigned<ULL>(buff); return buff; } In_Buffer& operator>>( In_Buffer& buff, int& r) { r = read_signed<int>(buff); return buff; } In_Buffer& operator>>( In_Buffer& buff, LL& r) { r = read_signed<LL>(buff); return buff; } In_Buffer& operator>>( In_Buffer& buff, string& r) { r.clear(); char c = buff.get_unchecked(); while(c <= ' ') c = buff.get_unchecked(); do { r.push_back( c ); c = buff.get_unchecked(); } while(c > ' '); return buff; } class Out_Buffer : private Buffer { public: Out_Buffer(FILE* a_stream, int a_buffer_size) : Buffer(a_stream, a_buffer_size) {} ~Out_Buffer() { flush(); } public: void prepare(int num_chars) { if(buffer_size - pos >= num_chars) return; flush(); } void flush() { FWRITE(buff, 1, pos, stream); pos = 0; } public: void put_unchecked(const char& c) { buff[ pos++ ] = c; } void put_unchecked(const char* str, int len) { memcpy(buff+pos, str, len); pos += len; } }; template<class INT> void write_signed(Out_Buffer& buff, const INT& i) { buff.prepare(25); if(i == 0) { buff.put_unchecked('0'); return; } auto ci = i; if(ci < 0) { buff.put_unchecked('-'); ci = -ci; } const int sz = 25; char temp[sz]; int pos = sz; while(ci) { temp[ --pos ] = '0' + ci%10; ci/=10; } buff.put_unchecked(temp+pos, sz-pos); } template<class INT> void write_unsigned(Out_Buffer& buff, const INT& i) { buff.prepare(25); if(i==0) { buff.put_unchecked('0'); return; } const int sz = 25; char temp[sz]; int pos = sz; auto ci = i; while(ci) { temp[ --pos ] = '0' + ci%10; ci/=10; } buff.put_unchecked(temp+pos, sz-pos); } Out_Buffer& operator<<( Out_Buffer& buff, const char& c) { buff.prepare(1); buff.put_unchecked( c ); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const UI& r) { write_unsigned<UI>(buff, r); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const ULL& r) { write_unsigned<ULL>(buff, r); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const int& r) { write_signed<int>(buff, r); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const LL& r) { write_signed<LL>(buff, r); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const char* cstr) { auto len = strlen(cstr); buff.prepare(len); buff.put_unchecked(cstr, len); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const string& str) { buff.prepare( str.size() ); buff.put_unchecked(str.data(), str.size()); return buff; } #define BUFF_SIZE 32768 In_Buffer fast_cin( stdin, BUFF_SIZE ); Out_Buffer fast_cout( stdout, BUFF_SIZE ); //Out_Buffer fast_cerr( stderr, BUFF_SIZE ); char fast_endl = '\n'; // // AMALGAMATE: "include/fast-io.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// #define cin fast_cin #define cout fast_cout #define endl fast_endl #else //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/slow-io.hpp" BEGINS HERE // struct Slow_IO_Singleton { Slow_IO_Singleton() { ios_base::sync_with_stdio( false ); std::cin.tie( nullptr ); std::cout.tie( nullptr ); setlocale(LC_ALL,"C"); const int buffer_size = 32768; static char stdin_buffer[ buffer_size ]; static char stdout_buffer[ buffer_size ]; cin.rdbuf()->pubsetbuf( stdin_buffer, buffer_size ); cout.rdbuf()->pubsetbuf( stdout_buffer, buffer_size ); } ~Slow_IO_Singleton() { } }; Slow_IO_Singleton slow_io_singleton; // // AMALGAMATE: "include/slow-io.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// #if USE_FAST_ENDL #define endl '\n' #endif #endif //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/abbrevs-io.hpp" BEGINS HERE // int ri() { int r; cin >> r; return r; } UI rui() { UI r; cin >> r; return r; } LL rll() { LL r; cin >> r; return r; } ULL rull() { ULL r; cin >> r; return r; } string rstr() {string s; cin >> s; return s; } // // AMALGAMATE: "include/abbrevs-io.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/debug.hpp" BEGINS HERE // #define ASS(x) assert(x) // // AMALGAMATE: "include/debug.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// // // for salgo #define CONTEST_MODE namespace salgo {}; using namespace salgo; // // // AMALGAMATE: "include/template.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// // // snippets/int-pow.hpp // template<class T, class E, class OP> T int_pow(T a, E exp, const OP& op, const T& neutral) { auto r = neutral; while(exp != 0) { if((exp & 1) != 0) { op(r, a); --exp; } else{ exp >>= 1; op(a, a); } } return r; } template<class T, class E> T int_pow(const T& a, const E& exp) { auto lambda = [](T& aa, const T& bb){ aa *= bb; }; return int_pow<T,E,decltype(lambda)>(a, exp, lambda, T(1)); } // // snippets/modulo.hpp // uint32_t MOD = 1e9 + 7; class Modulo { public: using H = uint32_t; H h = 0; public: Modulo() = default; Modulo(H x) : h( x % MOD ) {} Modulo(const Modulo&) = default; public: Modulo& operator+=(const Modulo& o) { h += o.h; if(h >= MOD) h -= MOD; return *this; } Modulo& operator-=(const Modulo& o) { h = MOD + h - o.h; if(h >= MOD) h -= MOD; return *this; } Modulo& operator*=(const Modulo& o) { h = (1ULL * h * o.h) % MOD; return *this; } Modulo& operator/=(const Modulo& o) { const auto TOTIENT = MOD-1; *this *= int_pow(o, TOTIENT-1); return *this; } bool operator==(const Modulo& o) const { return h == o.h; } bool operator!=(const Modulo& o) const { return h != o.h; } Modulo operator+(const Modulo& o) const { return Modulo(*this) += o; } Modulo operator-(const Modulo& o) const { return Modulo(*this) -= o; } Modulo operator*(const Modulo& o) const { return Modulo(*this) *= o; } Modulo operator/(const Modulo& o) const { return Modulo(*this) /= o; } Modulo& operator--() { if(h == 0) h = MOD; --h; return *this; } Modulo& operator++() { ++h; if(h == MOD) h = 0; return *this; } Modulo operator--(int) { auto m = *this; --(*this); return m; } Modulo operator++(int) { auto m = *this; ++(*this); return m; } explicit operator H() const { return h; } }; ostream& operator<<(ostream& os, const Modulo& modulo) { return os << modulo.h; } // // snippets/binomial.hpp // template<class VAL> struct Binomial { int n = 0; int k = 0; VAL val = (VAL)1; public: Binomial() = default; // hack Binomial(int nn, int kk, const VAL& vv) : n(nn), k(kk), val(vv) {} VAL operator()(int nn, int kk) { if(outside(nn,kk)) return VAL(0); while(k > kk) move_l(); while(n > nn) move_u(); while(n < nn) move_d(); while(k < kk) move_r(); return val; } static bool outside(int nn, int kk) { return nn < 0 || kk < 0 || kk > nn; } void move_l() { --k; val *= VAL(k+1); val /= VAL(n-k); } void move_r() { ++k; val *= VAL(n-k+1); val /= VAL(k); } void move_d() { ++n; val *= VAL(n); val /= VAL(n-k); } void move_u() { --n; val *= VAL(n-k+1); val /= VAL(n+1); } }; using H = Modulo; using Bino = Binomial<H>; struct Sphere { int r; string pos; bool operator==(const Sphere& o) const { return r == o.r && pos == o.pos; } }; auto volume(const Sphere& a) { H r = 0; Bino b; FOR(d, a.r+1) { r += b((int)a.pos.size(), d); } return r; } H cache[10'009][10'009]; auto intersect(const Sphere& a, const Sphere& b, bool compute_cache = false) { int r[2] = {a.r, b.r}; int n[2] = {0, 0}; int dims = a.pos.size(); FOR(i,dims) { if(b.pos[i] == a.pos[i]) { ++n[0]; } else { ++n[1]; } } H bino_cache[ n[1]+1 ]; Bino bin; FO(i, 0, n[1]+1) { bino_cache[i] = bin(n[1], i); } H bino_sum[ n[1]+1 + 1 ]; bino_sum[0] = 0; Bino bi; FO(i, 1, n[1]+1 + 1) { bino_sum[i] = bino_sum[i-1] + bi(n[1], i-1); } H sum_0 = 0; auto max_d0 = min({ n[0], r[0], r[1] }); // cout << "d0 range: [0, " << max_d0 << "]" << endl; Bino b0; FOR(d0, max_d0+1) { auto min_d1 = max({ 0, n[1] - (r[1] - d0) }); auto max_d1 = min({ n[1], r[0] - d0 }); // cout << "d1 range: [" << min_d1 << ", " << max_d1 << "]" << endl; H sum_1 = 0; if(min_d1 <= max_d1) { sum_1 = bino_sum[max_d1+1] - bino_sum[min_d1]; } auto bino_val = b0(n[0], d0); sum_0 += bino_val * sum_1; Bino b1; if(compute_cache) { FO(d1, min_d1, max_d1 + 1) { // auto val = b1(n[1], d1) * bino_val; auto val = bino_cache[d1] * bino_val; int r0_left = r[0] - d0 - d1; int r1_left = r[1] - d0 - (n[1]-d1); // cout << "r0_left " << r0_left << endl; // cout << "r1_left " << r1_left << endl; // cout << "cache[" << r[0] - r0_left << "][" << r[1] - r1_left << "] += " << val << endl; cache[r[0] - r0_left][r[1] - r1_left] += val; } } } if(compute_cache) { // cout << "propagate" << endl; FOR(r0, r[0]+1) { FOR(r1, r[1]+1) { if(r0 > 0) cache[r0][r1] += cache[r0-1][r1]; if(r1 > 0) cache[r0][r1] += cache[r0][r1-1]; if(r0 > 0 && r1 > 0) cache[r0][r1] -= cache[r0-1][r1-1]; } } // cout << "propagate done" << endl; } return sum_0; } auto intersect(const Sphere& a, const Sphere& b, const Sphere& c) { if(a == b) return intersect(a,c); if(b == c) return intersect(a,b); if(a == c) return intersect(a,b); int r[3] = {a.r, b.r, c.r}; int n[4] = {0, 0, 0, 0}; int dims = a.pos.size(); FOR(i,dims) { if(b.pos[i] == a.pos[i]) { if(c.pos[i] == a.pos[i]) { ++n[0]; } else { ++n[1]; } } else { if(c.pos[i] == a.pos[i]) { ++n[2]; } else { ++n[3]; } } } { Sphere s0; Sphere s1; FOR(i, n[0]) { s0.pos.push_back('0'); s1.pos.push_back('0'); } FOR(i, n[1]) { s0.pos.push_back('0'); s1.pos.push_back('1'); } s0.r = min(a.r, b.r); s1.r = c.r; // cout << "fill cache " << n[0] << " " << n[1] << endl; intersect(s0, s1, true); // cout << "fill cache done" << endl; } auto subsolve = [&](int r0, int r1) { auto& rr = cache[r0][r1]; // if(rr == -1) { // s0.r = r0; // s1.r = r1; // rr = intersect(s0, s1); // } // assert(r0 >= 0); // assert(r1 >= 0); return rr; }; H bino_cache[ n[2]+1 ]; Bino bin; FO(i, 0, n[2]+1) { bino_cache[i] = bin(n[2], i); } H sum_3 = 0; auto min_d3 = max({ 0, n[3] - r[2], n[3] - r[1] }); auto max_d3 = min({ n[3], r[0] }); Bino b3; FO(d3, min_d3, max_d3+1) { H sum_2 = 0; auto min_d2 = max({ 0, n[2] - (r[1] - (n[3]-d3)) }); auto max_d2 = min({ n[2], r[0] - d3, r[2] - (n[3]-d3) }); // Bino b2; FO(d2, min_d2, max_d2+1) { // b2(n[2], d2) sum_2 += bino_cache[d2] * subsolve( min( r[0] - d3 - d2, r[1] - (n[3]-d3) - (n[2]-d2) ), r[2] - (n[3]-d3) - d2 ); } sum_3 += b3(n[3], d3) * sum_2; } return sum_3; } struct Test_Case { void solve() { // cout << "Case #" << icase+1 << ": "; RI; // dims Sphere sph[3]; FOR(i,3) { sph[i].r = RI; sph[i].pos = RSTR; } auto r = volume(sph[0]) + volume(sph[1]) + volume(sph[2]); r -= intersect(sph[0], sph[1]); r -= intersect(sph[1], sph[2]); r -= intersect(sph[0], sph[2]); r += intersect(sph[0], sph[1], sph[2]); cout << r << endl; } int icase = -1; }; // struct Test_Case int main() { int num_cases = READ_NUM_TEST_CASES ? RI : 1; FOR(i, num_cases) { Test_Case tc; tc.icase = i; tc.solve(); } return 0; }
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(a) : (b)) #define MAX(a,b) ((b)<(a) ? (a) : (b)) #define REMIN(a,b) ((a) = min(a,b)) #define REMAX(a,b) ((a) = max(a,b)) #define ALL(c) (c).begin(),(c).end() #define SQR(x) ((x)*(x)) bool is_pow(int x) { return (x&(x-1)) == 0; } // // AMALGAMATE: "include/abbrevs.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// #if USE_FAST_IO //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/fast-io.hpp" BEGINS HERE // //#define FREAD fread //#define FWRITE fwrite #define FREAD fread_unlocked #define FWRITE fwrite_unlocked struct Buffer { FILE* const stream; const int buffer_size; uint8_t* const buff; int pos = 0; Buffer(FILE* a_stream, int a_buffer_size) : stream( a_stream ), buffer_size( a_buffer_size ), buff( new uint8_t[ buffer_size ] ) { setvbuf(stream, NULL, _IONBF, 0); } ~Buffer() { delete[] buff; } }; class In_Buffer : private Buffer { public: In_Buffer(FILE* a_stream, int a_buffer_size) : Buffer(a_stream, a_buffer_size) { FREAD(buff, 1, buffer_size, stream); } public: void prepare(int num_chars) { auto remaining = buffer_size - pos; if(remaining >= num_chars) return; assert(remaining >= 0); // prevent compiler warning memcpy(buff, buff+pos, remaining); int read = FREAD(buff+remaining, 1, pos, stream); int block_end = remaining + read; memset(buff + block_end, 0, buffer_size - block_end); pos = 0; } public: char get_unchecked() { return buff[ pos++ ]; } }; template<class INT> INT read_unsigned(In_Buffer& buff) { buff.prepare(25); char c = buff.get_unchecked(); while(c < '-') c = buff.get_unchecked(); INT r = 0; for(;;) { if(c < '0') return r; c -= '0'; r = r*10 + c; c = buff.get_unchecked(); } } template<class INT> INT read_signed(In_Buffer& buff) { buff.prepare(25); char c = buff.get_unchecked(); while(c < '-') c = buff.get_unchecked(); bool minus = false; if(c=='-') { c = buff.get_unchecked(); minus = true; } INT r = 0; for(;;) { if(c < '0') return minus ? -r : r; r = r*10 + (c-'0'); c = buff.get_unchecked(); } } In_Buffer& operator>>( In_Buffer& buff, char& c) { buff.prepare(1); c = buff.get_unchecked(); return buff; } In_Buffer& operator>>( In_Buffer& buff, UI& r) { r = read_unsigned<UI>(buff); return buff; } In_Buffer& operator>>( In_Buffer& buff, ULL& r) { r = read_unsigned<ULL>(buff); return buff; } In_Buffer& operator>>( In_Buffer& buff, int& r) { r = read_signed<int>(buff); return buff; } In_Buffer& operator>>( In_Buffer& buff, LL& r) { r = read_signed<LL>(buff); return buff; } In_Buffer& operator>>( In_Buffer& buff, string& r) { r.clear(); char c = buff.get_unchecked(); while(c <= ' ') c = buff.get_unchecked(); do { r.push_back( c ); c = buff.get_unchecked(); } while(c > ' '); return buff; } class Out_Buffer : private Buffer { public: Out_Buffer(FILE* a_stream, int a_buffer_size) : Buffer(a_stream, a_buffer_size) {} ~Out_Buffer() { flush(); } public: void prepare(int num_chars) { if(buffer_size - pos >= num_chars) return; flush(); } void flush() { FWRITE(buff, 1, pos, stream); pos = 0; } public: void put_unchecked(const char& c) { buff[ pos++ ] = c; } void put_unchecked(const char* str, int len) { memcpy(buff+pos, str, len); pos += len; } }; template<class INT> void write_signed(Out_Buffer& buff, const INT& i) { buff.prepare(25); if(i == 0) { buff.put_unchecked('0'); return; } auto ci = i; if(ci < 0) { buff.put_unchecked('-'); ci = -ci; } const int sz = 25; char temp[sz]; int pos = sz; while(ci) { temp[ --pos ] = '0' + ci%10; ci/=10; } buff.put_unchecked(temp+pos, sz-pos); } template<class INT> void write_unsigned(Out_Buffer& buff, const INT& i) { buff.prepare(25); if(i==0) { buff.put_unchecked('0'); return; } const int sz = 25; char temp[sz]; int pos = sz; auto ci = i; while(ci) { temp[ --pos ] = '0' + ci%10; ci/=10; } buff.put_unchecked(temp+pos, sz-pos); } Out_Buffer& operator<<( Out_Buffer& buff, const char& c) { buff.prepare(1); buff.put_unchecked( c ); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const UI& r) { write_unsigned<UI>(buff, r); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const ULL& r) { write_unsigned<ULL>(buff, r); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const int& r) { write_signed<int>(buff, r); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const LL& r) { write_signed<LL>(buff, r); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const char* cstr) { auto len = strlen(cstr); buff.prepare(len); buff.put_unchecked(cstr, len); return buff; } Out_Buffer& operator<<( Out_Buffer& buff, const string& str) { buff.prepare( str.size() ); buff.put_unchecked(str.data(), str.size()); return buff; } #define BUFF_SIZE 32768 In_Buffer fast_cin( stdin, BUFF_SIZE ); Out_Buffer fast_cout( stdout, BUFF_SIZE ); //Out_Buffer fast_cerr( stderr, BUFF_SIZE ); char fast_endl = '\n'; // // AMALGAMATE: "include/fast-io.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// #define cin fast_cin #define cout fast_cout #define endl fast_endl #else //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/slow-io.hpp" BEGINS HERE // struct Slow_IO_Singleton { Slow_IO_Singleton() { ios_base::sync_with_stdio( false ); std::cin.tie( nullptr ); std::cout.tie( nullptr ); setlocale(LC_ALL,"C"); const int buffer_size = 32768; static char stdin_buffer[ buffer_size ]; static char stdout_buffer[ buffer_size ]; cin.rdbuf()->pubsetbuf( stdin_buffer, buffer_size ); cout.rdbuf()->pubsetbuf( stdout_buffer, buffer_size ); } ~Slow_IO_Singleton() { } }; Slow_IO_Singleton slow_io_singleton; // // AMALGAMATE: "include/slow-io.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// #if USE_FAST_ENDL #define endl '\n' #endif #endif //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/abbrevs-io.hpp" BEGINS HERE // int ri() { int r; cin >> r; return r; } UI rui() { UI r; cin >> r; return r; } LL rll() { LL r; cin >> r; return r; } ULL rull() { ULL r; cin >> r; return r; } string rstr() {string s; cin >> s; return s; } // // AMALGAMATE: "include/abbrevs-io.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////// // AMALGAMATE: "include/debug.hpp" BEGINS HERE // #define ASS(x) assert(x) // // AMALGAMATE: "include/debug.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// // // for salgo #define CONTEST_MODE namespace salgo {}; using namespace salgo; // // // AMALGAMATE: "include/template.hpp" ENDS HERE //////////////////////////////////////////////////////////////////////////////// // // snippets/int-pow.hpp // template<class T, class E, class OP> T int_pow(T a, E exp, const OP& op, const T& neutral) { auto r = neutral; while(exp != 0) { if((exp & 1) != 0) { op(r, a); --exp; } else{ exp >>= 1; op(a, a); } } return r; } template<class T, class E> T int_pow(const T& a, const E& exp) { auto lambda = [](T& aa, const T& bb){ aa *= bb; }; return int_pow<T,E,decltype(lambda)>(a, exp, lambda, T(1)); } // // snippets/modulo.hpp // uint32_t MOD = 1e9 + 7; class Modulo { public: using H = uint32_t; H h = 0; public: Modulo() = default; Modulo(H x) : h( x % MOD ) {} Modulo(const Modulo&) = default; public: Modulo& operator+=(const Modulo& o) { h += o.h; if(h >= MOD) h -= MOD; return *this; } Modulo& operator-=(const Modulo& o) { h = MOD + h - o.h; if(h >= MOD) h -= MOD; return *this; } Modulo& operator*=(const Modulo& o) { h = (1ULL * h * o.h) % MOD; return *this; } Modulo& operator/=(const Modulo& o) { const auto TOTIENT = MOD-1; *this *= int_pow(o, TOTIENT-1); return *this; } bool operator==(const Modulo& o) const { return h == o.h; } bool operator!=(const Modulo& o) const { return h != o.h; } Modulo operator+(const Modulo& o) const { return Modulo(*this) += o; } Modulo operator-(const Modulo& o) const { return Modulo(*this) -= o; } Modulo operator*(const Modulo& o) const { return Modulo(*this) *= o; } Modulo operator/(const Modulo& o) const { return Modulo(*this) /= o; } Modulo& operator--() { if(h == 0) h = MOD; --h; return *this; } Modulo& operator++() { ++h; if(h == MOD) h = 0; return *this; } Modulo operator--(int) { auto m = *this; --(*this); return m; } Modulo operator++(int) { auto m = *this; ++(*this); return m; } explicit operator H() const { return h; } }; ostream& operator<<(ostream& os, const Modulo& modulo) { return os << modulo.h; } // // snippets/binomial.hpp // template<class VAL> struct Binomial { int n = 0; int k = 0; VAL val = (VAL)1; public: Binomial() = default; // hack Binomial(int nn, int kk, const VAL& vv) : n(nn), k(kk), val(vv) {} VAL operator()(int nn, int kk) { if(outside(nn,kk)) return VAL(0); while(k > kk) move_l(); while(n > nn) move_u(); while(n < nn) move_d(); while(k < kk) move_r(); return val; } static bool outside(int nn, int kk) { return nn < 0 || kk < 0 || kk > nn; } void move_l() { --k; val *= VAL(k+1); val /= VAL(n-k); } void move_r() { ++k; val *= VAL(n-k+1); val /= VAL(k); } void move_d() { ++n; val *= VAL(n); val /= VAL(n-k); } void move_u() { --n; val *= VAL(n-k+1); val /= VAL(n+1); } }; using H = Modulo; using Bino = Binomial<H>; struct Sphere { int r; string pos; bool operator==(const Sphere& o) const { return r == o.r && pos == o.pos; } }; auto volume(const Sphere& a) { H r = 0; Bino b; FOR(d, a.r+1) { r += b((int)a.pos.size(), d); } return r; } H cache[10'009][10'009]; auto intersect(const Sphere& a, const Sphere& b, bool compute_cache = false) { int r[2] = {a.r, b.r}; int n[2] = {0, 0}; int dims = a.pos.size(); FOR(i,dims) { if(b.pos[i] == a.pos[i]) { ++n[0]; } else { ++n[1]; } } H bino_cache[ n[1]+1 ]; Bino bin; FO(i, 0, n[1]+1) { bino_cache[i] = bin(n[1], i); } H bino_sum[ n[1]+1 + 1 ]; bino_sum[0] = 0; Bino bi; FO(i, 1, n[1]+1 + 1) { bino_sum[i] = bino_sum[i-1] + bi(n[1], i-1); } H sum_0 = 0; auto max_d0 = min({ n[0], r[0], r[1] }); // cout << "d0 range: [0, " << max_d0 << "]" << endl; Bino b0; FOR(d0, max_d0+1) { auto min_d1 = max({ 0, n[1] - (r[1] - d0) }); auto max_d1 = min({ n[1], r[0] - d0 }); // cout << "d1 range: [" << min_d1 << ", " << max_d1 << "]" << endl; H sum_1 = 0; if(min_d1 <= max_d1) { sum_1 = bino_sum[max_d1+1] - bino_sum[min_d1]; } auto bino_val = b0(n[0], d0); sum_0 += bino_val * sum_1; Bino b1; if(compute_cache) { FO(d1, min_d1, max_d1 + 1) { // auto val = b1(n[1], d1) * bino_val; auto val = bino_cache[d1] * bino_val; int r0_left = r[0] - d0 - d1; int r1_left = r[1] - d0 - (n[1]-d1); // cout << "r0_left " << r0_left << endl; // cout << "r1_left " << r1_left << endl; // cout << "cache[" << r[0] - r0_left << "][" << r[1] - r1_left << "] += " << val << endl; cache[r[0] - r0_left][r[1] - r1_left] += val; } } } if(compute_cache) { // cout << "propagate" << endl; FOR(r0, r[0]+1) { FOR(r1, r[1]+1) { if(r0 > 0) cache[r0][r1] += cache[r0-1][r1]; if(r1 > 0) cache[r0][r1] += cache[r0][r1-1]; if(r0 > 0 && r1 > 0) cache[r0][r1] -= cache[r0-1][r1-1]; } } // cout << "propagate done" << endl; } return sum_0; } auto intersect(const Sphere& a, const Sphere& b, const Sphere& c) { if(a == b) return intersect(a,c); if(b == c) return intersect(a,b); if(a == c) return intersect(a,b); int r[3] = {a.r, b.r, c.r}; int n[4] = {0, 0, 0, 0}; int dims = a.pos.size(); FOR(i,dims) { if(b.pos[i] == a.pos[i]) { if(c.pos[i] == a.pos[i]) { ++n[0]; } else { ++n[1]; } } else { if(c.pos[i] == a.pos[i]) { ++n[2]; } else { ++n[3]; } } } { Sphere s0; Sphere s1; FOR(i, n[0]) { s0.pos.push_back('0'); s1.pos.push_back('0'); } FOR(i, n[1]) { s0.pos.push_back('0'); s1.pos.push_back('1'); } s0.r = min(a.r, b.r); s1.r = c.r; // cout << "fill cache " << n[0] << " " << n[1] << endl; intersect(s0, s1, true); // cout << "fill cache done" << endl; } auto subsolve = [&](int r0, int r1) { auto& rr = cache[r0][r1]; // if(rr == -1) { // s0.r = r0; // s1.r = r1; // rr = intersect(s0, s1); // } // assert(r0 >= 0); // assert(r1 >= 0); return rr; }; H bino_cache[ n[2]+1 ]; Bino bin; FO(i, 0, n[2]+1) { bino_cache[i] = bin(n[2], i); } H sum_3 = 0; auto min_d3 = max({ 0, n[3] - r[2], n[3] - r[1] }); auto max_d3 = min({ n[3], r[0] }); Bino b3; FO(d3, min_d3, max_d3+1) { H sum_2 = 0; auto min_d2 = max({ 0, n[2] - (r[1] - (n[3]-d3)) }); auto max_d2 = min({ n[2], r[0] - d3, r[2] - (n[3]-d3) }); // Bino b2; FO(d2, min_d2, max_d2+1) { // b2(n[2], d2) sum_2 += bino_cache[d2] * subsolve( min( r[0] - d3 - d2, r[1] - (n[3]-d3) - (n[2]-d2) ), r[2] - (n[3]-d3) - d2 ); } sum_3 += b3(n[3], d3) * sum_2; } return sum_3; } struct Test_Case { void solve() { // cout << "Case #" << icase+1 << ": "; RI; // dims Sphere sph[3]; FOR(i,3) { sph[i].r = RI; sph[i].pos = RSTR; } auto r = volume(sph[0]) + volume(sph[1]) + volume(sph[2]); r -= intersect(sph[0], sph[1]); r -= intersect(sph[1], sph[2]); r -= intersect(sph[0], sph[2]); r += intersect(sph[0], sph[1], sph[2]); cout << r << endl; } int icase = -1; }; // struct Test_Case int main() { int num_cases = READ_NUM_TEST_CASES ? RI : 1; FOR(i, num_cases) { Test_Case tc; tc.icase = i; tc.solve(); } return 0; } |