// Karol Kosinski #include <cstdio> #include <utility> #include <algorithm> #define FOR(i,a,b) for(int i=(a);i<(b);++i) #define FOD(i,b,a) for(int i=(b)-1;i>=(a);--i) //#define DEBUG(x...) printf(x) #define DEBUG(x...) //#define DEBUG2(x...) printf(x) #define DEBUG2(x...) using namespace std; typedef unsigned long long LG; typedef pair<LG, LG> DLG; constexpr LG MOD = 1000000000000000ull; constexpr int MX_N = 114; constexpr int MX_INV = (MX_N - 2) * (MX_N - 1) / 2 + 1; constexpr int MX_SIZE = 250001; constexpr int MX_EXP = 15; constexpr int T_SIZE = 262145; constexpr LG INFTY = 1000000000000000003ull; DLG P[MX_N][MX_INV]; DLG Q[MX_SIZE][MX_EXP]; int indPerm = 0; int Perm[MX_SIZE]; int levelT; int T[20][T_SIZE]; int n; LG k; inline DLG toDLG(LG a) { return make_pair(a / MOD, a % MOD); } DLG operator+(const DLG& a, const DLG& b) { DLG res = a; res.second += b.second; if (res.second >= MOD) { res.second -= MOD; res.first += 1; } res.first += b.first; return res; } DLG operator-(const DLG& a, const DLG& b) { DLG res = a; if (res.second < b.second) { res.first -= 1; res.second += MOD; } res.second -= b.second; res.first -= b.first; return res; } inline DLG val(int n, int inv) { if (inv < 0) return make_pair(0, 0); return P[n][inv]; } inline DLG valq(int n, int inv) { if (inv < 0) return make_pair(0, 0); return Q[n][inv]; } void preproc() { const auto INF = toDLG(INFTY); P[0][0] = toDLG(1); P[1][0] = toDLG(1); P[2][0] = toDLG(1); P[2][1] = toDLG(1); FOR(n,3,MX_N) { FOR(inv,0,MX_INV) { P[n][inv] = min(val(n, inv - 1) + val(n - 1, inv) - val(n - 1, inv - n), INF); DEBUG2("%llu%15llu ", P[n][inv].first, P[n][inv].second); } DEBUG2("\n"); DEBUG2("%llu%15llu \n", P[n][n*(n-1)/4].first, P[n][n*(n-1)/4].second); DEBUG2("%llu%15llu \n", val(n-1, n*(n-1)/4-n+1).first, val(n-1, n*(n-1)/4-n+1).second); } DEBUG("%u\n", sizeof(P)); Q[0][0] = toDLG(1); Q[1][0] = toDLG(1); Q[2][0] = toDLG(1); Q[2][1] = toDLG(1); FOR(n,3,MX_SIZE) { FOR(inv,0,MX_EXP) { Q[n][inv] = min(valq(n, inv - 1) + valq(n - 1, inv) - valq(n - 1, inv - n), INF); DEBUG2("%llu%15llu ", Q[n][inv].first, Q[n][inv].second); } DEBUG2("\n"); } DEBUG("%u\n", sizeof(Q)); } inline int left(int ind) { return 2 * ind; } inline int right(int ind) { return 2 * ind + 1; } void initT() { int aux = n; FOR(i,0,aux) T[0][i] = 1; while (aux > 1) { ++levelT; aux = (aux + 1) / 2; FOR(i,0,aux) { T[levelT][i] = T[levelT - 1][left(i)] + T[levelT - 1][right(i)]; DEBUG2("%7d", T[levelT][i]); } DEBUG2("\n"); } DEBUG2("%d\n", levelT); DEBUG("%d\n", sizeof(T)); } int selectLowest(int ind) { ++ind; int i = levelT; int pos = 0; while (i > 0) { DEBUG("==== i(%d) pos(%d) ind(%d) val(%d)\n", i, pos, ind, T[i][pos]); T[i--][pos] -= 1; if (ind <= T[i][left(pos)]) { pos = left(pos); } else { ind -= T[i][left(pos)]; pos = right(pos); } } DEBUG("==== i(%d) pos(%d) ind(%d) val(%d)\n", i, pos, ind, T[i][pos]); T[i][pos] -= 1; return pos + 1; } int main() { preproc(); scanf("%d%llu", &n, &k); if (n % 4 > 1) { printf("NIE\n"); return 0; } initT(); if (n < MX_N) { auto kk = toDLG(k); int ind = n*(n-1)/4; DEBUG("** ind: %d \n", ind); DEBUG("** kk: %llu%15llu \n", kk.first, kk.second); if (P[n][ind] < kk) { printf("NIE\n"); return 0; } FOD(nn,n,0) { ind -= nn; DEBUG("** ind: %d \n", ind); DEBUG("** kk: %llu%15llu \n", kk.first, kk.second); int start = ind; ind = max(ind, 0); DLG sum = make_pair(0, 0); DLG next = val(nn, ind); DEBUG("---- next: %llu%15llu \n", next.first, next.second); while (kk > next) { sum = next; next = next + val(nn, ++ind); DEBUG("---- ind: %d \n", ind); DEBUG("---- next: %llu%15llu \n", next.first, next.second); } kk = kk - sum; Perm[indPerm++] = selectLowest(ind - start); } printf("TAK\n"); FOR(i,0,indPerm) printf("%d ", Perm[i]); printf("\n"); } else { long long bigInd = (long long)(n)*(long long)(n-1)/4; DEBUG("** bigInd: %lld\n", bigInd); int aux = 0; int ind = 0; FOD(nn,n,MX_N-1) { if (bigInd - nn < MX_EXP) { DEBUG("!!!!!!! nn: %d\n", nn); aux = nn; ind = int(bigInd); break; } bigInd -= nn; DEBUG("** bigInd: %lld\n", bigInd); Perm[indPerm++] = selectLowest(0); } auto kk = toDLG(k); FOD(nn,aux+1,0) { ind -= nn; DEBUG("** ind: %d \n", ind); DEBUG("** kk: %llu%15llu \n", kk.first, kk.second); int start = ind; ind = max(ind, 0); DLG sum = make_pair(0, 0); DLG next = valq(nn, ind); DEBUG("---- next: %llu%15llu \n", next.first, next.second); while (kk > next) { sum = next; next = next + valq(nn, ++ind); DEBUG("---- ind: %d \n", ind); DEBUG("---- next: %llu%15llu \n", next.first, next.second); } kk = kk - sum; Perm[indPerm++] = selectLowest(ind - start); } printf("TAK\n"); FOR(i,0,indPerm) printf("%d ", Perm[i]); printf("\n"); } 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 | // Karol Kosinski #include <cstdio> #include <utility> #include <algorithm> #define FOR(i,a,b) for(int i=(a);i<(b);++i) #define FOD(i,b,a) for(int i=(b)-1;i>=(a);--i) //#define DEBUG(x...) printf(x) #define DEBUG(x...) //#define DEBUG2(x...) printf(x) #define DEBUG2(x...) using namespace std; typedef unsigned long long LG; typedef pair<LG, LG> DLG; constexpr LG MOD = 1000000000000000ull; constexpr int MX_N = 114; constexpr int MX_INV = (MX_N - 2) * (MX_N - 1) / 2 + 1; constexpr int MX_SIZE = 250001; constexpr int MX_EXP = 15; constexpr int T_SIZE = 262145; constexpr LG INFTY = 1000000000000000003ull; DLG P[MX_N][MX_INV]; DLG Q[MX_SIZE][MX_EXP]; int indPerm = 0; int Perm[MX_SIZE]; int levelT; int T[20][T_SIZE]; int n; LG k; inline DLG toDLG(LG a) { return make_pair(a / MOD, a % MOD); } DLG operator+(const DLG& a, const DLG& b) { DLG res = a; res.second += b.second; if (res.second >= MOD) { res.second -= MOD; res.first += 1; } res.first += b.first; return res; } DLG operator-(const DLG& a, const DLG& b) { DLG res = a; if (res.second < b.second) { res.first -= 1; res.second += MOD; } res.second -= b.second; res.first -= b.first; return res; } inline DLG val(int n, int inv) { if (inv < 0) return make_pair(0, 0); return P[n][inv]; } inline DLG valq(int n, int inv) { if (inv < 0) return make_pair(0, 0); return Q[n][inv]; } void preproc() { const auto INF = toDLG(INFTY); P[0][0] = toDLG(1); P[1][0] = toDLG(1); P[2][0] = toDLG(1); P[2][1] = toDLG(1); FOR(n,3,MX_N) { FOR(inv,0,MX_INV) { P[n][inv] = min(val(n, inv - 1) + val(n - 1, inv) - val(n - 1, inv - n), INF); DEBUG2("%llu%15llu ", P[n][inv].first, P[n][inv].second); } DEBUG2("\n"); DEBUG2("%llu%15llu \n", P[n][n*(n-1)/4].first, P[n][n*(n-1)/4].second); DEBUG2("%llu%15llu \n", val(n-1, n*(n-1)/4-n+1).first, val(n-1, n*(n-1)/4-n+1).second); } DEBUG("%u\n", sizeof(P)); Q[0][0] = toDLG(1); Q[1][0] = toDLG(1); Q[2][0] = toDLG(1); Q[2][1] = toDLG(1); FOR(n,3,MX_SIZE) { FOR(inv,0,MX_EXP) { Q[n][inv] = min(valq(n, inv - 1) + valq(n - 1, inv) - valq(n - 1, inv - n), INF); DEBUG2("%llu%15llu ", Q[n][inv].first, Q[n][inv].second); } DEBUG2("\n"); } DEBUG("%u\n", sizeof(Q)); } inline int left(int ind) { return 2 * ind; } inline int right(int ind) { return 2 * ind + 1; } void initT() { int aux = n; FOR(i,0,aux) T[0][i] = 1; while (aux > 1) { ++levelT; aux = (aux + 1) / 2; FOR(i,0,aux) { T[levelT][i] = T[levelT - 1][left(i)] + T[levelT - 1][right(i)]; DEBUG2("%7d", T[levelT][i]); } DEBUG2("\n"); } DEBUG2("%d\n", levelT); DEBUG("%d\n", sizeof(T)); } int selectLowest(int ind) { ++ind; int i = levelT; int pos = 0; while (i > 0) { DEBUG("==== i(%d) pos(%d) ind(%d) val(%d)\n", i, pos, ind, T[i][pos]); T[i--][pos] -= 1; if (ind <= T[i][left(pos)]) { pos = left(pos); } else { ind -= T[i][left(pos)]; pos = right(pos); } } DEBUG("==== i(%d) pos(%d) ind(%d) val(%d)\n", i, pos, ind, T[i][pos]); T[i][pos] -= 1; return pos + 1; } int main() { preproc(); scanf("%d%llu", &n, &k); if (n % 4 > 1) { printf("NIE\n"); return 0; } initT(); if (n < MX_N) { auto kk = toDLG(k); int ind = n*(n-1)/4; DEBUG("** ind: %d \n", ind); DEBUG("** kk: %llu%15llu \n", kk.first, kk.second); if (P[n][ind] < kk) { printf("NIE\n"); return 0; } FOD(nn,n,0) { ind -= nn; DEBUG("** ind: %d \n", ind); DEBUG("** kk: %llu%15llu \n", kk.first, kk.second); int start = ind; ind = max(ind, 0); DLG sum = make_pair(0, 0); DLG next = val(nn, ind); DEBUG("---- next: %llu%15llu \n", next.first, next.second); while (kk > next) { sum = next; next = next + val(nn, ++ind); DEBUG("---- ind: %d \n", ind); DEBUG("---- next: %llu%15llu \n", next.first, next.second); } kk = kk - sum; Perm[indPerm++] = selectLowest(ind - start); } printf("TAK\n"); FOR(i,0,indPerm) printf("%d ", Perm[i]); printf("\n"); } else { long long bigInd = (long long)(n)*(long long)(n-1)/4; DEBUG("** bigInd: %lld\n", bigInd); int aux = 0; int ind = 0; FOD(nn,n,MX_N-1) { if (bigInd - nn < MX_EXP) { DEBUG("!!!!!!! nn: %d\n", nn); aux = nn; ind = int(bigInd); break; } bigInd -= nn; DEBUG("** bigInd: %lld\n", bigInd); Perm[indPerm++] = selectLowest(0); } auto kk = toDLG(k); FOD(nn,aux+1,0) { ind -= nn; DEBUG("** ind: %d \n", ind); DEBUG("** kk: %llu%15llu \n", kk.first, kk.second); int start = ind; ind = max(ind, 0); DLG sum = make_pair(0, 0); DLG next = valq(nn, ind); DEBUG("---- next: %llu%15llu \n", next.first, next.second); while (kk > next) { sum = next; next = next + valq(nn, ++ind); DEBUG("---- ind: %d \n", ind); DEBUG("---- next: %llu%15llu \n", next.first, next.second); } kk = kk - sum; Perm[indPerm++] = selectLowest(ind - start); } printf("TAK\n"); FOR(i,0,indPerm) printf("%d ", Perm[i]); printf("\n"); } return 0; } |