Codeforces 256D Liars and Serge dp

当说答案是 x 的人数是 y 且 x != y 的时候，这y个人肯定都是说谎的，所以考虑
dp[ i ][ j ][ k ] 表示答案为1 - i 的人全部确定，有 j 个位置被占， k个人说谎的方案数。
转移很显然，但是复杂度很高需要交表。
#include<bits/stdc++.h>
#define LL long long
#define LD long double
#define ull unsigned long long
#define fi first
#define se second
#define mk make_pair
#define PLL pair<LL, LL>
#define PLI pair<LL, int>
#define PII pair<int, int>
#define SZ(x) ((int)x.size())
#define ALL(x) (x).begin(), (x).end()
#define fio ios::sync_with_stdio(false); cin.tie(0);

using namespace std;

const int N = (1 << 8) + 7;
const int inf = 0x3f3f3f3f;
const LL INF = 0x3f3f3f3f3f3f3f3f;
const int mod = 777777777;
const double eps = 1e-8;
const double PI = acos(-1);

template<class T, class S> inline void add(T &a, S b) {a += b; if(a >= mod) a -= mod;}
template<class T, class S> inline void sub(T &a, S b) {a -= b; if(a < 0) a += mod;}
template<class T, class S> inline bool chkmax(T &a, S b) {return a < b ? a = b, true : false;}
template<class T, class S> inline bool chkmin(T &a, S b) {return a > b ? a = b, true : false;}

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

//int table[9][(1 << 8) + 1];
//int C[N][N];
//int dp[N][N][N];
//int n, m;

//void getTable() {
//    for(int i = 0; i < N; i++) {
//        for(int j = C[i][0] = 1; j <= i; j++) {
//            C[i][j] = (C[i - 1][j - 1] + C[i - 1][j]) % mod;
//        }
//    }
//    for(int l = 0; l < 9; l++) {
//        int n = 1 << l;
//        memset(dp, 0, sizeof(dp));
//        dp[0][0][0] = 1;
//        for(int i = 0; i < n; i++) {
//            for(int j = 0; j <= n; j++) {
//                for(int k = 0; k <= j; k++) {
//                    if(!dp[i][j][k]) continue;
//                    for(int z = 0; z + j <= n; z++) {
//                        if(z == i + 1) add(dp[i + 1][j + z][k], 1LL * dp[i][j][k] * C[n - j][z] % mod);
//                        else add(dp[i + 1][j + z][k + z], 1LL * dp[i][j][k] * C[n - j][z] % mod);
//                    }
//                }
//            }
//        }
//
//        for(int k = 0; k <= n; k++) {
//            table[l][k] = dp[n][n][k];
//        }
//    }
//    printf("int table[9][(1 << 8) + 1] = {
");
//    for(int l = 0; l < 9; l++) {
//        printf("{");
//        printf("%d", table[l][0]);
//        for(int i = 1; i <= (1 << 8); i++) {
//            printf(", %d", table[l][i]);
//        }
//        printf("}");
//        if(l != 8) putchar(',');
//        puts("");
//    }
//    printf("};
");
//}

int table[9][(1 << 8) + 1] = {
{1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{1, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{5, 32, 30, 80, 109, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{541, 6824, 59808, 147224, 415870, 1757896, 1897056, 4898872, 7593125, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{166257661, 776830421, 290516100, 746623577, 293783147, 33900006, 735127505, 565460332, 428982705, 472062098, 161873957, 117354594, 515619293, 578944191, 312106242, 569389279, 391464593, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{464207287, 261086313, 584837659, 683961846, 468868529, 211593382, 736955478, 229471758, 157617135, 398169441, 360252438, 629394768, 264125799, 647490480, 342079395, 391579767, 225200475, 486011304, 513156108, 628771752, 132906648, 142138221, 20119449, 444199674, 195188679, 387329805, 44684703, 651912135, 737154512, 612549793, 519860281, 186175544, 212568440, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{382725349, 240805271, 239509872, 581127897, 6511239, 156126222, 509425833, 672407328, 366667722, 459185405, 509737025, 554790222, 165216555, 703150560, 74806569, 398730015, 383350905, 506108358, 51326142, 298053147, 104256117, 391428765, 374020479, 206607807, 87664059, 275899176, 56407680, 551553401, 448939463, 582889860, 129676638, 226078251, 135769095, 61292868, 578972226, 190181628, 390739055, 184587732, 446575689, 732674124, 232198470, 676760679, 352474101, 611444862, 575661807, 628905585, 320813094, 522840969, 469781928, 156006018, 554473341, 239654268, 643714911, 433540170, 199307003, 496385218, 291740751, 67309914, 370826673, 202356819, 279421821, 421203111, 63744786, 520987612, 550671827, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{642497124, 482164403, 768209115, 462063756, 154906374, 36099042, 341766705, 678182556, 621882744, 478771358, 231881111, 175889805, 243630450, 168908523, 671961765, 55761813, 652682670, 773939082, 517628076, 756201264, 124604900, 750976272, 498253248, 676047609, 137170026, 705610017, 495032139, 561797418, 703097347, 500815609, 95984586, 739707108, 265613565, 387099846, 777331779, 594676173, 591219559, 407997044, 208947235, 93337440, 478908360, 685013007, 487033953, 671903001, 39521181, 738490312, 33785059, 465470131, 310453920, 54648783, 346831137, 427694175, 474743430, 705296781, 435828036, 429824745, 663532359, 261388683, 244690731, 533997135, 596108961, 506813013, 371892402, 590145264, 104733162, 143420103, 654339672, 700348950, 685038942, 578826927, 286484229, 501639192, 434962491, 299270097, 27702486, 335375775, 111746817, 565603164, 294926121, 676063665, 735862995, 710035809, 437011960, 668528077, 138765186, 508213986, 615036450, 353784942, 624827616, 343900011, 241289776, 52410890, 72018835, 352406796, 415705878, 4802637, 376367145, 65589678, 333633477, 341834527, 303717460, 282387700, 42951006, 254706039, 423048528, 526429710, 68131467, 669954708, 12787348, 500636381, 317959019, 479433192, 657133515, 416259390, 610216692, 340129188, 44594256, 257373347, 138718678, 530767740, 292922628, 37220268, 605295159, 480722613, 458170419, 30540300, 487159055, 232966794, 149150650, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{507720408, 412133651, 386543325, 139952108, 289303402, 102404925, 317067177, 396414708, 80515854, 663739304, 317300809, 228877044, 493725043, 715317967, 490300965, 315527373, 743539734, 488329191, 553627998, 533025234, 242583957, 706116537, 614109258, 645447222, 523195911, 492109128, 722623041, 111085128, 766395126, 654378921, 691964847, 496688157, 399056049, 654363234, 102052314, 191720088, 473910948, 259736526, 332840025, 388047555, 665791056, 627111387, 139696515, 441456687, 443032569, 283264821, 771641703, 452641455, 511306362, 117572859, 127701891, 721298331, 176520078, 357242229, 611296308, 696994956, 405628839, 429224274, 465336054, 695091546, 689828796, 574648641, 351220905, 507964023, 675326610, 517248963, 453528621, 220301928, 494463186, 681789969, 339589656, 44524053, 417125457, 339589404, 747135963, 341780733, 734158215, 396817281, 21997836, 5728464, 147611205, 456248898, 714128667, 377654949, 3862068, 128418948, 589390074, 304947090, 11703825, 228266073, 127304142, 429215724, 361541124, 521572968, 468358191, 341231688, 65323503, 613778508, 15985323, 291661029, 410970006, 591638112, 349541550, 89967528, 224922159, 361094166, 584206074, 640051812, 324264456, 652625388, 693768537, 11740617, 309238398, 211085469, 194905872, 639416484, 110110707, 296645895, 748118511, 131177718, 511142751, 775975599, 421403409, 475528473, 434685258, 1768977, 80301375, 708023862, 569195676, 56238084, 632887668, 88089750, 631539342, 396695565, 38780154, 695798271, 469819224, 439587099, 69045921, 682966116, 112310856, 64943298, 534475872, 40215357, 389728458, 286368453, 736006257, 501181650, 54829908, 603489402, 338032656, 512182818, 627500097, 462674016, 3103092, 157324491, 43978329, 596818971, 259025598, 9088632, 91991781, 577291428, 211245489, 429471231, 142626330, 172560633, 510907446, 444609585, 758102058, 375112647, 744786693, 276174402, 19259856, 233672418, 745389414, 225772848, 23385663, 324290610, 519804558, 120337812, 402578568, 360676008, 450089262, 551043738, 337388940, 512108856, 28879011, 690040638, 106017282, 558262341, 99972432, 608226003, 612152037, 42414435, 776201013, 39580443, 518796945, 494437752, 583194366, 723936555, 415359657, 309569589, 751104774, 166684527, 249229170, 353120823, 130668327, 753823584, 580966092, 561963717, 543672234, 393846327, 586278000, 327398400, 278403867, 156455586, 363920382, 190245195, 290039148, 547014447, 466218648, 146037150, 585462906, 666008595, 691786683, 374707494, 622498779, 231158277, 685740951, 115612245, 681825249, 545555745, 551718468, 277206615, 640171035, 757727334, 195193908, 658656684, 457760646, 225925875, 505761984, 18685233, 506832921, 112511021, 396846646, 290147622, 113924623, 669986155, 336008070, 63611061, 238586775, 119956662, 616557739, 772784623, 334527774, 410403148, 51933421}
};

int main() {
//    getTable();
    int n, k;
    scanf("%d%d", &n, &k);
    int l = 0;
    while((1 << l) < n) l++;
    printf("%d
", table[l][k]);
    return 0;
}

/*
*/