#include "poszukiwania.h" #include "message.h" #include <cstdio> #include <vector> #include <cmath> using namespace std; int main() { int d = NumberOfNodes(); int id = MyNodeId(); long long N = SeqLength(); long long M = SignalLength(); // looking for Signal in Seq __int128 x; long long res = 0; int i; long long H1 = 13; long long H2 = 101; long long H3 = 53; long long h1 = 0; long long h2 = 0; long long h3 = 0; long long h1x = 0; long long h2x = 0; long long h3x = 0; if (N < 1000) { vector<long long> seq(N); vector<long long> signal(M); for (long long i = 0; i < N; ++i) { seq[i] = SeqAt(i+1); } for (long long j = 0; j < M; ++j) { signal[j] = SignalAt(j+1); } if (id > 0) { return 0; } else { long long cnt = 0; for (long long i = 0; i < N - M; ++i) { bool found = true; for (long long j = 0; j < M; ++j) { if(seq[i+j] != signal[j]) found = false; } if (found) ++cnt; } if (MyNodeId() == 0) printf("%lld\n", cnt); return 0; } } // N >= 1000 // send hashes // calculate rolling hash long long seg = M / d; if (id != d - 1) { long long pH1 = pow(H1, id * seg); long long pH2 = pow(H2, id * seg); long long pH3 = pow(H3, id * seg); __int128 ht1 = 0; __int128 ht2 = 0; __int128 ht3 = 0; __int128 ht1x = 0; __int128 ht2x = 0; __int128 ht3x = 0; for (long long j = 0; j < seg; ++j) { ht1 += SignalAt(j + id * seg + 1) * pH1; ht1 *= H1; ht1 %= 1000000000001LL;; ht2 += SignalAt(j + id * seg + 1) * pH2; ht2 *= H2; ht2 %= 1000000000001LL;; ht3 += SignalAt(j + id * seg + 1) * pH3; ht3 *= H3; ht3 %= 1000000000001LL;; ht1x += SeqAt(j + id * seg + 1) * pH1; ht1x *= H1; ht1x %= 1000000000001LL;; ht2x += SeqAt(j + id * seg + 1) * pH2; ht2x *= H2; ht2x %= 1000000000001LL;; ht3x += SeqAt(j + id * seg + 1) * pH3; ht3x *= H3; ht3x %= 1000000000001LL;; } h1 = ht1; h2 = ht2; h3 = ht3; h1x = ht1x; h2x = ht2x; h3x = ht3x; } else { long long segM = M - (d-1)*(M/d); long long pH1 = pow(H1, id * seg); long long pH2 = pow(H2, id * seg); long long pH3 = pow(H3, id * seg); __int128 ht1 = 0; __int128 ht2 = 0; __int128 ht3 = 0; __int128 ht1x = 0; __int128 ht2x = 0; __int128 ht3x = 0; for (long long j = 0; j < segM; ++j) { ht1 += SignalAt(j + id * seg + 1) * pH1; ht1 *= H1; ht1 %= 1000000000001LL;; ht2 += SignalAt(j + id * seg + 1) * pH2; ht2 *= H2; ht2 %= 1000000000001LL;; ht3 += SignalAt(j + id * seg + 1) * pH3; ht3 *= H3; ht3 %= 1000000000001LL;; ht1x += SeqAt(j + id * seg + 1) * pH1; ht1x *= H1; ht1x %= 1000000000001LL;; ht2x += SeqAt(j + id * seg + 1) * pH2; ht2x *= H2; ht2x %= 1000000000001LL;; ht3x += SeqAt(j + id * seg + 1) * pH3; ht3x *= H3; ht3x %= 1000000000001LL;; } h1 = ht1; h2 = ht2; h3 = ht3; h1x = ht1x; h2x = ht2x; h3x = ht3x; } if (id > 0) { PutLL(0, h1); PutLL(0, h2); PutLL(0, h3); PutLL(0, h1x); PutLL(0, h2x); PutLL(0, h3x); Send(0); } else { __int128 h1s = h1; __int128 h2s = h2; __int128 h3s = h3; __int128 h1sx = h1x; __int128 h2sx = h2x; __int128 h3sx = h3x; long long h1l = 0; long long h2l = 0; long long h3l = 0; long long h1lx = 0; long long h2lx = 0; long long h3lx = 0; for (int i = 1; i < d; ++i) { int inst = Receive(-1); long long h1i = GetLL(inst); long long h2i = GetLL(inst); long long h3i = GetLL(inst); long long h1ix = GetLL(inst); long long h2ix = GetLL(inst); long long h3ix = GetLL(inst); h1s = h1s + h1i; h1s %= 1000000000001LL; h2s = h2s + h2i; h2s %= 1000000000001LL; h3s = h3s + h3i; h3s %= 1000000000001LL; h1sx = h1sx + h1ix; h1sx %= 1000000000001LL; h2sx = h2sx + h2ix; h2sx %= 1000000000001LL; h3sx = h3sx + h3ix; h3sx %= 1000000000001LL; h1l = h1s; h2l = h2s; h3l = h3s; h1lx = h1sx; h2lx = h2sx; h3lx = h3sx; } // do the search long long cntx = 0; if ((h1l == h1lx) && (h2l == h2lx) && (h3l == h3lx)) { ++cntx; } for (long long i = M; i < N; ++i) { h1lx = (h1lx * H1) + SignalAt(i + 1) * H1 - SignalAt(i - M + 1) * pow(H1, M + 1); h2lx = (h2lx * H2) + SignalAt(i + 1) * H2 - SignalAt(i - M + 1) * pow(H2, M + 1); h3lx = (h3lx * H3) + SignalAt(i + 1) * H3 - SignalAt(i - M + 1) * pow(H3, M + 1); h1lx %= 1000000000001LL; h2lx %= 1000000000001LL; h3lx %= 1000000000001LL; if ((h1l == h1lx) && (h2l == h2lx) && (h3l == h3lx)) { ++cntx; } } if (MyNodeId() == 0) printf("%lld\n", cntx); } return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 | #include "poszukiwania.h" #include "message.h" #include <cstdio> #include <vector> #include <cmath> using namespace std; int main() { int d = NumberOfNodes(); int id = MyNodeId(); long long N = SeqLength(); long long M = SignalLength(); // looking for Signal in Seq __int128 x; long long res = 0; int i; long long H1 = 13; long long H2 = 101; long long H3 = 53; long long h1 = 0; long long h2 = 0; long long h3 = 0; long long h1x = 0; long long h2x = 0; long long h3x = 0; if (N < 1000) { vector<long long> seq(N); vector<long long> signal(M); for (long long i = 0; i < N; ++i) { seq[i] = SeqAt(i+1); } for (long long j = 0; j < M; ++j) { signal[j] = SignalAt(j+1); } if (id > 0) { return 0; } else { long long cnt = 0; for (long long i = 0; i < N - M; ++i) { bool found = true; for (long long j = 0; j < M; ++j) { if(seq[i+j] != signal[j]) found = false; } if (found) ++cnt; } if (MyNodeId() == 0) printf("%lld\n", cnt); return 0; } } // N >= 1000 // send hashes // calculate rolling hash long long seg = M / d; if (id != d - 1) { long long pH1 = pow(H1, id * seg); long long pH2 = pow(H2, id * seg); long long pH3 = pow(H3, id * seg); __int128 ht1 = 0; __int128 ht2 = 0; __int128 ht3 = 0; __int128 ht1x = 0; __int128 ht2x = 0; __int128 ht3x = 0; for (long long j = 0; j < seg; ++j) { ht1 += SignalAt(j + id * seg + 1) * pH1; ht1 *= H1; ht1 %= 1000000000001LL;; ht2 += SignalAt(j + id * seg + 1) * pH2; ht2 *= H2; ht2 %= 1000000000001LL;; ht3 += SignalAt(j + id * seg + 1) * pH3; ht3 *= H3; ht3 %= 1000000000001LL;; ht1x += SeqAt(j + id * seg + 1) * pH1; ht1x *= H1; ht1x %= 1000000000001LL;; ht2x += SeqAt(j + id * seg + 1) * pH2; ht2x *= H2; ht2x %= 1000000000001LL;; ht3x += SeqAt(j + id * seg + 1) * pH3; ht3x *= H3; ht3x %= 1000000000001LL;; } h1 = ht1; h2 = ht2; h3 = ht3; h1x = ht1x; h2x = ht2x; h3x = ht3x; } else { long long segM = M - (d-1)*(M/d); long long pH1 = pow(H1, id * seg); long long pH2 = pow(H2, id * seg); long long pH3 = pow(H3, id * seg); __int128 ht1 = 0; __int128 ht2 = 0; __int128 ht3 = 0; __int128 ht1x = 0; __int128 ht2x = 0; __int128 ht3x = 0; for (long long j = 0; j < segM; ++j) { ht1 += SignalAt(j + id * seg + 1) * pH1; ht1 *= H1; ht1 %= 1000000000001LL;; ht2 += SignalAt(j + id * seg + 1) * pH2; ht2 *= H2; ht2 %= 1000000000001LL;; ht3 += SignalAt(j + id * seg + 1) * pH3; ht3 *= H3; ht3 %= 1000000000001LL;; ht1x += SeqAt(j + id * seg + 1) * pH1; ht1x *= H1; ht1x %= 1000000000001LL;; ht2x += SeqAt(j + id * seg + 1) * pH2; ht2x *= H2; ht2x %= 1000000000001LL;; ht3x += SeqAt(j + id * seg + 1) * pH3; ht3x *= H3; ht3x %= 1000000000001LL;; } h1 = ht1; h2 = ht2; h3 = ht3; h1x = ht1x; h2x = ht2x; h3x = ht3x; } if (id > 0) { PutLL(0, h1); PutLL(0, h2); PutLL(0, h3); PutLL(0, h1x); PutLL(0, h2x); PutLL(0, h3x); Send(0); } else { __int128 h1s = h1; __int128 h2s = h2; __int128 h3s = h3; __int128 h1sx = h1x; __int128 h2sx = h2x; __int128 h3sx = h3x; long long h1l = 0; long long h2l = 0; long long h3l = 0; long long h1lx = 0; long long h2lx = 0; long long h3lx = 0; for (int i = 1; i < d; ++i) { int inst = Receive(-1); long long h1i = GetLL(inst); long long h2i = GetLL(inst); long long h3i = GetLL(inst); long long h1ix = GetLL(inst); long long h2ix = GetLL(inst); long long h3ix = GetLL(inst); h1s = h1s + h1i; h1s %= 1000000000001LL; h2s = h2s + h2i; h2s %= 1000000000001LL; h3s = h3s + h3i; h3s %= 1000000000001LL; h1sx = h1sx + h1ix; h1sx %= 1000000000001LL; h2sx = h2sx + h2ix; h2sx %= 1000000000001LL; h3sx = h3sx + h3ix; h3sx %= 1000000000001LL; h1l = h1s; h2l = h2s; h3l = h3s; h1lx = h1sx; h2lx = h2sx; h3lx = h3sx; } // do the search long long cntx = 0; if ((h1l == h1lx) && (h2l == h2lx) && (h3l == h3lx)) { ++cntx; } for (long long i = M; i < N; ++i) { h1lx = (h1lx * H1) + SignalAt(i + 1) * H1 - SignalAt(i - M + 1) * pow(H1, M + 1); h2lx = (h2lx * H2) + SignalAt(i + 1) * H2 - SignalAt(i - M + 1) * pow(H2, M + 1); h3lx = (h3lx * H3) + SignalAt(i + 1) * H3 - SignalAt(i - M + 1) * pow(H3, M + 1); h1lx %= 1000000000001LL; h2lx %= 1000000000001LL; h3lx %= 1000000000001LL; if ((h1l == h1lx) && (h2l == h2lx) && (h3l == h3lx)) { ++cntx; } } if (MyNodeId() == 0) printf("%lld\n", cntx); } return 0; } |