QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#353877 | #8330. Count off 3 | ucup-team004# | AC ✓ | 693ms | 7240kb | C++20 | 8.1kb | 2024-03-14 18:29:09 | 2024-03-14 18:29:10 |
Judging History
answer
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using i64 = long long;
constexpr int P = 1000000007;
constexpr int L = 10000;
int pw[7][6] {};
std::array<int, 7 * 7 * 7> dp[1 << 6];
int fac[L + 1], invfac[L + 1];
int sumbinom[L + 1][7];
int binom(int n, int m) {
return 1LL * fac[n] * invfac[m] % P * invfac[n - m] % P;
}
int power(int a, int b) {
int res = 1;
for (; b; b /= 2, a = 1LL * a * a % P) {
if (b % 2) {
res = 1LL * res * a % P;
}
}
return res;
}
int solve[7 * 7 * 7 * 7 * 7 * 7];
int p7[7] = {1, 7, 49, 343, 343 * 7, 343 * 49, 343 * 343};
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
for (int i = 0; i < 7; i++) {
pw[i][0] = 1;
for (int j = 1; j < 6; j++) {
pw[i][j] = i * pw[i][j - 1] % 7;
}
}
fac[0] = 1;
for (int i = 1; i <= L; i++) {
fac[i] = 1LL * fac[i - 1] * i % P;
}
invfac[L] = power(fac[L], P - 2);
for (int i = L; i; i--) {
invfac[i - 1] = 1LL * invfac[i] * i % P;
}
sumbinom[0][0] = 1;
for (int i = 1; i <= L; i++) {
for (int j = 0; j < 7; j++) {
sumbinom[i][j] = (sumbinom[i - 1][j] + sumbinom[i - 1][(j + 6) % 7]) % P;
}
}
int T;
std::cin >> T;
std::vector<std::string> s(T);
for (int i = 0; i < T; i++) {
std::cin >> s[i];
std::reverse(s[i].begin(), s[i].end());
s[i].resize(L, '0');
}
std::vector pre(T, std::vector(L + 1, std::array<int, 7>{}));
for (int i = 0; i < T; i++) {
for (int j = 0; j < L; j++) {
for (int k = 1; k < 7; k++) {
pre[i][j + 1][k] = (pre[i][j][k] + (s[i][j] - '0') * pw[k][j % 6]) % 7;
}
}
}
auto dfs = [&](auto self, int i, int a, int b) -> void {
if (i == 6) {
solve[b] = a;
return;
}
for (int x = 0; x < 7; x++) {
int nb = 0;
for (int j = 0; j < 6; j++) {
int old = b / p7[j] % 7;
int ne = (old + x * pw[j + 1][i]) % 7;
nb += ne * p7[j];
}
self(self, i + 1, a + p7[i] * x, nb);
}
};
dfs(dfs, 0, 0, 0);
std::vector<int> ans(T);
for (int s = 0; s < (1 << 6); s++) {
dp[s][0] = 1;
}
for (int i = 1; i < L; i++) {
int tmp[6][7] {};
for (int x = 0; x < 6; x++) {
for (int y = 0; y < 7; y++) {
int cnt = i / 6 + (x < i % 6) - (x == 0);
tmp[x][y] = sumbinom[cnt][y];
}
}
for (int j = 0; j < T; j++) {
if (s[j][i] == '1') {
std::array<int, 7> f{};
for (int x = 1; x < 7; x++) {
f[x] = (pre[j][L][x] - pre[j][i + 1][x] + 7 + 1) % 7;
f[x] = (7 - f[x]) % 7;
}
for (int mask = 0; mask < (1 << 6); mask++) {
if (__builtin_popcount(mask) <= 3) {
int T = mask;
while (__builtin_popcount(T) < 3) {
T |= T + 1;
}
int S = T;
int x = __builtin_ctz(T);
T ^= 1 << x;
int y = __builtin_ctz(T);
T ^= 1 << y;
int z = __builtin_ctz(T);
int fx = mask >> x & 1;
int fy = mask >> y & 1;
int fz = mask >> z & 1;
// if (mask == 0) {
// std::cerr << x << " " << y << " " << z << "\n";
// }
for (int a = fx ? f[x + 1] : 0; a <= (fx ? f[x + 1] : 6); a++) {
for (int b = fy ? f[y + 1] : 0; b <= (fy ? f[y + 1] : 6); b++) {
for (int c = fz ? f[z + 1] : 0; c <= (fz ? f[z + 1] : 6); c++) {
int coef = __builtin_popcount(mask) % 2 ? P - 1 : 1;
ans[j] = (ans[j] + 1LL * coef * dp[S][a + b * 7 + c * 49]) % P;
// if (dp[S][a + b * 7 + c * 49] != 0)
// std::cerr << mask << " " << dp[S][a + b * 7 + c * 49] << " " << a << " " << b << " " << c << "\n";
}
}
}
} else {
int len = i;
int res = 0;
auto dfs = [&](auto self, int i, int b) -> void {
if (i == 6) {
int a = solve[b];
int ways = 1;
for (int j = 0; j < 6; j++) {
int t = a % 7;
a /= 7;
ways = 1ULL * ways * tmp[j][t] % P;
}
int coef = __builtin_popcount(mask) % 2 ? P - 1 : 1;
res = (res + 1LL * coef * ways) % P;
// if (mask == 63) {
// std::cerr << "len : " << len << ", b : " << b << ", a : " << a << ", ways : " << ways << "\n";
// for (int j = 1; j < 7; j++) {
// std::cerr << f[j] << " ";
// }
// std::cerr << "\n";
// }
// if (ways != 0) {
// std::cerr << ways << " " << j << " " << len << " " << mask << "\n";
// }
return;
}
for (int x = (mask >> i & 1) ? f[i + 1] : 0; x <= ((mask >> i & 1) ? f[i + 1] : 6); x++) {
self(self, i + 1, b + x * p7[i]);
}
};
dfs(dfs, 0, 0);
ans[j] = (ans[j] + res) % P;
}
}
}
}
for (int x = 0; x < 6; x++) {
for (int y = x + 1; y < 6; y++) {
for (int z = y + 1; z < 6; z++) {
int s = 1 << x | 1 << y | 1 << z;
auto g = dp[s];
for (int a = 0; a < 7; a++) {
for (int b = 0; b < 7; b++) {
for (int c = 0; c < 7; c++) {
int na = (a + pw[x + 1][i % 6]) % 7;
int nb = (b + pw[y + 1][i % 6]) % 7;
int nc = (c + pw[z + 1][i % 6]) % 7;
int T = a + b * 7 + c * 49;
int nT = na + nb * 7 + nc * 49;
g[nT] += dp[s][T];
if (g[nT] >= P) {
g[nT] -= P;
}
}
}
}
std::swap(dp[s], g);
}
}
}
}
for (int i = 0; i < T; i++) {
if (s[i][0] == '1') {
std::array<int, 7> f{};
for (int j = 0; j < L; j++) {
for (int x = 1; x < 7; x++) {
f[x] = (f[x] + pw[x][j % 6] * (s[i][j] - '0')) % 7;
}
}
int ok = 1;
for (int x = 1; x < 7; x++) {
if (f[x] == 0) {
ok = 0;
}
}
ans[i] = (ans[i] + ok) % P;
}
std::cout << ans[i] << "\n";
}
return 0;
}
这程序好像有点Bug,我给组数据试试?
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 85ms
memory: 5600kb
input:
5 1 1010 110101 1000111000 101101001000
output:
1 2 15 114 514
result:
ok 5 number(s): "1 2 15 114 514"
Test #2:
score: 0
Accepted
time: 92ms
memory: 6952kb
input:
10 1 11 1000 10111011 1000110100101001 11101110000001000011010011011000 110011000111110001101010101100100011010010101000011111001101011 11010111011101000010101111011111011011100001001101010011101011111111011011111101110110010011001101000001000111100010010111000010 10000000000000000000000000000000000...
output:
1 1 2 45 6591 814196699 193088128 849103726 497125329 363076920
result:
ok 10 numbers
Test #3:
score: 0
Accepted
time: 289ms
memory: 7112kb
input:
10 1 101 100101000 111111001111011001111100111 100001101010101000101110010111010010001101101110011111000001010001111100101010000 111001010100100100110011110111000111001001001001000100000011000110011000110101010010100000100101110101000011000011100010011001011000101110100111000110011011010111011111011...
output:
1 2 64 27062688 486363229 184013394 580592021 118930214 772664718 344619804
result:
ok 10 numbers
Test #4:
score: 0
Accepted
time: 394ms
memory: 6980kb
input:
10 1 1011 1101001010001110 1000010101110010000010010000000000001010111001001001110011001101 1001100101110111001000100100110111110001110010111011010101010111011101111101111100010000001100001001011100111100010110011010000010000000001100111011000001110011010000100000110101010011111100010111111100011011...
output:
1 3 10053 860833891 537931408 329471109 368911735 157523156 595487313 534701861
result:
ok 10 numbers
Test #5:
score: 0
Accepted
time: 465ms
memory: 7056kb
input:
10 1 11111 1010110010010000111001001 10011010100100001000110000111101101000111100001000000101010001100111111010001000101000000011100101000101100111100001001101100 11000100100010011101010101001011100010001100001010110011110101001101011000110001000111101010010000110111010001100100100111001000001000010...
output:
1 10 4692555 763463648 464152115 115362567 880780461 578723006 560068977 423846910
result:
ok 10 numbers
Test #6:
score: 0
Accepted
time: 513ms
memory: 7124kb
input:
10 1 101011 100100110100111100001101000101011100 1011011000011001101101010110000111011001001100110101111100110000100100101010000000110110010001110011101011000001011001000010001011101110110100110010111111000101101010110000101010101011001111100111011001101111011101 101000000111000010111000110000011000...
output:
1 13 955673880 266148454 368723690 496979115 190983211 772121423 932555320 843716403
result:
ok 10 numbers
Test #7:
score: 0
Accepted
time: 552ms
memory: 7092kb
input:
10 1 1101101 1100111111001000111100000010000111000000010101001 110111101101011000111101100110010011011100101110101111110011001111001101001000011001110011110101001110010110011110011001111010010101010011010011101101111010111000001110110111011011101000100001000001101110010111100110001110011101110111100...
output:
1 29 912933242 912560788 607401363 477602366 394403189 275067439 592568023 75193370
result:
ok 10 numbers
Test #8:
score: 0
Accepted
time: 577ms
memory: 7052kb
input:
10 1 10000010 100101110110100111100000100011111111010001100010100001100110001 111111000010011010111011111110000010101101011110100001101011110000001111001110001111110101000000010000001011000101101011010111011101111110101001000110011101010000111001011111100100010000010110110101010001110100111110110001...
output:
1 32 959140870 614330473 849221876 787816311 359958989 239371459 534701861 254356877
result:
ok 10 numbers
Test #9:
score: 0
Accepted
time: 587ms
memory: 7188kb
input:
10 1 111110011 111101001101011110100011110000100110011101010111111110100001111001101000100101101 11011010000110101011111110110011101010100100110001001111111011010000101111110001001011000011010101001000101110000100011011100101010110010101000101010111101100101110111100011011011000101101001001001100111...
output:
1 99 286317277 694681686 723919544 789291149 680541846 694957099 453387561 757810824
result:
ok 10 numbers
Test #10:
score: 0
Accepted
time: 611ms
memory: 7080kb
input:
10 1 1001001110 10110010111110100100111100111101101010111110111011001110000111101011011010110011110000000001110100 11000101011111110110100101100100100000010110001011100010101111111000000111000101100110111110101010111110010110111111110010110010001100000000111000101100010001110010001011111110101011111...
output:
1 120 987933828 449323095 435643580 557750562 122442298 758115947 388795572 87146822
result:
ok 10 numbers
Test #11:
score: 0
Accepted
time: 636ms
memory: 7200kb
input:
10 1 11010010100 100110110000100111011101001111000000000110111100011110111011110100001010101000000000100000101100100101110101011100111000 110111100000010010111000111011111100010100100111101001001101111010011011100100001010100010100011110111111100101011100111111011011000000111001111000101111010110111...
output:
1 325 391030697 323231960 401473132 822267612 841573845 283856764 804647498 76347459
result:
ok 10 numbers
Test #12:
score: 0
Accepted
time: 622ms
memory: 7056kb
input:
10 1 111111110011 100111010001010010111100011101110011110100101101010111001110101111000111010001111110000001000011010111010001001000011101100011100010010100010000 11001011101100010011111001010110110000110110011001011001000001001110010100100000000101100010001011010010001101000101110000111100100000001...
output:
1 704 677678115 593427859 667002509 574438492 664907465 979953874 8529137 613727900
result:
ok 10 numbers
Test #13:
score: 0
Accepted
time: 629ms
memory: 7080kb
input:
10 1 1100110101011 100111000010011100111101101100110010110000100011110101100100011001101011100011101101110111001101000001110010111001110011100101000111111000010101101100011000010100010101 1111010000010011010010011000010000000001000110111011101100111011100010110011100110011110011011110011110100011001...
output:
1 1146 832402516 402106502 689225542 416112434 991952024 938688647 880733772 630306115
result:
ok 10 numbers
Test #14:
score: 0
Accepted
time: 640ms
memory: 7112kb
input:
10 1 11000000000111 110010000100100011111101001100111010110111011101101011001001010110101111111101001000000100110011110101100111010110100100010100000100000011100010101011010001100001000111000101000011010110010100000 101001000110100011110100011001010101001010011111010111111001100111111100101111110111...
output:
1 2087 659256442 942088668 754989716 908871865 566839365 111034927 696022638 206335876
result:
ok 10 numbers
Test #15:
score: 0
Accepted
time: 658ms
memory: 7100kb
input:
10 1 111100001011110 101100010011110001000011110010011010011100110010111110100111111111100101100111010101001101111001111010111011011111000111000101101010001100111010100110110000111110100100101000001101111100000101101100010110101000011001110001101 11111110001100110111110110100010111010100010010010010...
output:
1 5612 120730460 903512843 440620378 736669452 35297346 414402862 87146822 461180872
result:
ok 10 numbers
Test #16:
score: 0
Accepted
time: 635ms
memory: 7008kb
input:
10 1 1011110111101110 11111011001101100000000011011111011000101001100010000000001010011110010000100000111100101011101111111111001000110011110000011001000111000010101100001001100111100100000010101101111100100100101110101100000000011101011100010111111010000101011000110010011000 11110011001110110000001...
output:
1 9074 47298040 806126372 607928251 829797230 861514498 6535505 135611721 148853296
result:
ok 10 numbers
Test #17:
score: 0
Accepted
time: 652ms
memory: 7240kb
input:
10 1 11101111010010001 1111011100010101011101000110010001011001010101000100111100010110101010010001100101001001011111101001101100110100100100101101011001100000101011000100001011101000101000110000110100100100001001000011000111000010100011001111111011010001110111101111010011100010110001010010000100001...
output:
1 25268 485539600 497476229 129697011 91489334 354698980 228961474 875061949 618786188
result:
ok 10 numbers
Test #18:
score: 0
Accepted
time: 676ms
memory: 7112kb
input:
10 1 101101011100110001 100111001100000111101000101110011011011011111101011110101111000010000101010001010110100101001001100010101100101001110110001101101100111111100001000100010010110101110010111101100110010000010001101011001110001001100111101100111010100100000000000010000100101001000110000111100100...
output:
1 38342 769759919 33866310 945890505 127750526 125262837 888967227 757810824 441419016
result:
ok 10 numbers
Test #19:
score: 0
Accepted
time: 673ms
memory: 7116kb
input:
10 1 1001100011010110111 11100110010001111111110100011111100100011011110000110100000111101100111110111010111010111001111111100111011000000101001111000010001100010001111001011000111111001111100100101101011001110011100000111011111110101000111011101101110101101101110101100000011000001001011011100001111...
output:
1 65218 438898572 348219276 776140964 704823526 170625715 198310775 477853700 897436999
result:
ok 10 numbers
Test #20:
score: 0
Accepted
time: 693ms
memory: 7112kb
input:
10 1 11010100111111001011 1000011001001001110110101001100001001101001001010010101010001110011001001000000000110001100110001110110111010100101011011001100101001110111001101101000111101100010110101100101110111101000101111010100110001011110111000110000110110111011101110010010011010001110101010110010000...
output:
1 183823 238142747 846693477 959968477 260267123 642987070 779134130 951392182 679687101
result:
ok 10 numbers
Extra Test:
score: 0
Extra Test Passed