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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#351742#8330. Count off 3ucup-team3215AC ✓792ms4052kbC++204.9kb2024-03-12 13:57:442024-10-13 18:49:01

Judging History

你现在查看的是最新测评结果

  • [2024-10-13 18:49:01]
  • 管理员手动重测本题所有得分≥97分的提交记录
  • 测评结果:AC
  • 用时:792ms
  • 内存:4052kb
  • [2024-04-17 10:54:49]
  • 自动重测本题所有获得100分的提交记录
  • 测评结果:100
  • 用时:765ms
  • 内存:4044kb
  • [2024-04-17 10:54:24]
  • hack成功,自动添加数据
  • (/hack/598)
  • [2024-04-16 16:09:19]
  • 自动重测本题所有获得100分的提交记录
  • 测评结果:100
  • 用时:809ms
  • 内存:4044kb
  • [2024-04-16 16:08:54]
  • hack成功,自动添加数据
  • (/hack/597)
  • [2024-03-12 13:57:44]
  • 评测
  • 测评结果:100
  • 用时:438ms
  • 内存:4052kb
  • [2024-03-12 13:57:44]
  • 提交

answer

#include <algorithm>
#include <array>
#include <cmath>
#include <cstdint>
#include <iostream>
#include <vector>

using namespace std;

constexpr int N = 1e4, N6 = N / 6 + 2, T = 10, mod = 1e9 + 7, pw7[]{1, 7, 49, 343, 2401};

auto& mul(auto&& a, auto b) { return a = a * (uint64_t)b % mod; }
auto& add(auto&& a, auto b) { return a -= (a += b) >= mod? mod: 0; }
int sub7(int a, int b) { return a += (a -= b) < 0? 7: 0; }

int cnk[N6], c7[N6][7];

int calc_worst(const string& s, const vector<array<int, 6>>& bad) {
  int64_t ans = 0;
  array<int, 6> pref{};
  pref[5] = 1;
  for (int i = 0; i < s.size(); ++i) if (s[i]) {
    int q = (s.size() - i - 1) / 6, r = (s.size() - i - 1) % 6;
    for (auto& b: bad) {
      int cur = 1;
      #pragma GCC unroll 9
      for (int i = 0; i < 6; ++i) mul(cur, c7[q + (i < r)][sub7(b[i], pref[i])]);
      ans += cur;
    }
    ++pref[(s.size() - i - 1) % 6] %= 7;
  }
  return ans % mod;
}

int ans[T], cans[T], dp[2][pw7[4]];
string s[T];
array<int, 6> pref[T];

template <size_t n>
void calc_best(array<int, n> bad) {
  int mlen = 0;
  for (int i = 0; i < T; ++i) if (pref[i] = {}, cans[i] = 0, mlen = max(mlen, {s[i].size()}), 1)
  for (int j = 0; j < s[i].size(); ++j)
  for (int k = 0; k < n; ++k) pref[i][k] = (pref[i][k] * bad[k] + s[i][j]) % 7;
  for (int i = 0; i < T; ++i)
  for (int k = 0; k < n; ++k) {
    int t = 1;
    for (int j = 5; j--; ) t = t * bad[k] % 7;
    pref[i][k] = (pref[i][k] + t) % 7;
  }
  constexpr int sz = pw7[n];
  fill_n(dp[0], sz, 0);
  dp[0][0] = 1;
  int cpw[n];
  fill_n(cpw, n, 6);
  auto plain = [](auto... xs) { int x = 0; return ((x = x * 7 + xs), ...); };
  for (int i = 0; i < mlen; ++i) {
    for (int j = 0; j < T; ++j) if (s[j].size() >= i)
    for (int k = 0; k < n; ++k) pref[j][k] = (pref[j][k] + s[j].rbegin()[i] * cpw[k]) % 7;
    auto& cur = dp[i & 1], & nx = dp[~i & 1];
    for (int j = 0; j < T; ++j) if (s[j].size() > i && s[j].rbegin()[i]) {
      int idx = 0;
      for (int i = 0; i < n; ++i) idx = idx * 7 + pref[j][i];
      add(cans[j], cur[idx]);
    }
    if constexpr (n == 4) {
      for (int a0 = 0; a0 < 7; ++a0)
      for (int a1 = 0; a1 < 7; ++a1)
      for (int a2 = 0; a2 < 7; ++a2)
      #pragma GCC unroll 9
      for (int a3 = 0; a3 < 7; ++a3) {
        nx[plain(a0, a1, a2, a3)] = add(+cur[plain(a0, a1, a2, a3)], cur[plain(sub7(a0, cpw[0]), sub7(a1, cpw[1]), sub7(a2, cpw[2]), sub7(a3, cpw[3]))]);
      }
    } else if constexpr (n == 3) {
      for (int a0 = 0; a0 < 7; ++a0)
      for (int a1 = 0; a1 < 7; ++a1)
      #pragma GCC unroll 9
      for (int a2 = 0; a2 < 7; ++a2) {
        nx[plain(a0, a1, a2)] = add(+cur[plain(a0, a1, a2)], cur[plain(sub7(a0, cpw[0]), sub7(a1, cpw[1]), sub7(a2, cpw[2]))]);
      }
    } else if constexpr (n == 2) {
      for (int a0 = 0; a0 < 7; ++a0)
      for (int a1 = 0; a1 < 7; ++a1) {
        nx[plain(a0, a1)] = add(+cur[plain(a0, a1)], cur[plain(sub7(a0, cpw[0]), sub7(a1, cpw[1]))]);
      }
    } else if constexpr (n == 1) {
      for (int a0 = 0; a0 < 7; ++a0) {
        nx[plain(a0)] = add(+cur[plain(a0)], cur[plain(sub7(a0, cpw[0]))]);
      }
    }
    for (int i = 0; i < n; ++i) cpw[i] = cpw[i] * bad[i] % 7;
  }
  for (int i = 0; i < T; ++i) add(ans[i], n % 2? mod - cans[i]: cans[i]);
}


int main() {
  cin.tie(0)->sync_with_stdio(0);
  for (int i = 0; i < N6; ++i)
  for (int j = i + 1; j--; ) add(c7[i][j % 7], !j? cnk[j] = 1: add(cnk[j], cnk[j - 1]));
  int t; cin >> t;
  for (int i = 0; i < t; ++i) {
    cin >> s[i];
    for (auto& c: s[i]) c -= '0';
    s[i].insert(s[i].begin(), 0);
    for (int j = s[i].size(); j--; ) if (s[i][j]++) s[i][j] = 0; else break;
    s[i].pop_back();
    for (auto c: s[i]) ans[i] = (ans[i] * 2 + c) % mod;
  }
  constexpr int cutoff = 4;
  {
    vector<array<int, 6>> bad[7];
    for (int i = 0; i < pow(7, 6); ++i) {
      array<int, 6> d;
      for (int j = 6, t = i; j--; t /= 7) d[j] = t % 7;
      int badness = 0;
      for (int j = 7; --j; ) {
        int s = 0;
        for (auto d: d) s = (s * j + d) % 7;
        badness += !s;
      }
      for (int j = cutoff; j++ < badness; ) bad[j].insert(bad[j].end(), badness == j? 1: j == badness - 1? badness: badness * (badness - 1) / 2, d);
    }
    for (int i = 0; i < T; ++i)
    for (int j = cutoff; j++ < 6; ) {
      auto t = calc_worst(s[i], bad[j]);
      add(ans[i], j % 2? mod - t: t);
    }
  }
  for (int m = 0; m < 1 << 6; ++m) if (__builtin_popcount(m) <= cutoff) {
    vector<int> v;
    for (int i = 0; i < 6; ++i) if (m & 1 << i) v.push_back(i + 1);
    if (v.size() == 4) calc_best<4>({v[0], v[1], v[2], v[3]});
    else if (v.size() == 3) calc_best<3>({v[0], v[1], v[2]});
    else if (v.size() == 2) calc_best<2>({v[0], v[1]});
    else if (v.size() == 1) calc_best<1>({v[0]});
  }
  for (int i = 0; i < t; ++i) cout << ans[i] << '\n';
}

这程序好像有点Bug,我给组数据试试?

详细

Test #1:

score: 100
Accepted
time: 21ms
memory: 3944kb

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: 58ms
memory: 3936kb

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: 731ms
memory: 3732kb

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: 759ms
memory: 3668kb

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: 769ms
memory: 3728kb

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: 768ms
memory: 3812kb

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: 773ms
memory: 3800kb

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: 779ms
memory: 3780kb

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: 771ms
memory: 3856kb

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: 783ms
memory: 3696kb

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: 788ms
memory: 3768kb

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: 785ms
memory: 3748kb

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: 779ms
memory: 3812kb

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: 788ms
memory: 4000kb

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: 785ms
memory: 3700kb

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: 782ms
memory: 4020kb

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: 781ms
memory: 3760kb

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: 780ms
memory: 3820kb

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: 792ms
memory: 3760kb

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: 789ms
memory: 4052kb

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