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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#226121#6522. Digit ModeYouKn0wWhoAC ✓641ms3892kbC++232.3kb2023-10-25 16:17:492023-10-25 16:17:49

Judging History

你现在查看的是最新测评结果

  • [2023-10-25 16:17:49]
  • 评测
  • 测评结果:AC
  • 用时:641ms
  • 内存:3892kb
  • [2023-10-25 16:17:49]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;

const int N = 55, mod = 1e9 + 7;
int dp[11][N], C[N][N];
int yo(int n, vector<int> lim) {
  dp[0][0] = 1;
  for (int i = 1; i <= 10; i++) {
    for (int s = 0; s <= n; s++) {
      dp[i][s] = 0;
      for (int k = 0; k <= lim[i - 1]; k++) {
        if (k <= s) {
          dp[i][s] += 1LL * dp[i - 1][s - k] * C[s][k] % mod;
          dp[i][s] %= mod;
        }
      }
    }
  }
  return dp[10][n];
}
int solve(int n, vector<int> f) {
  int ans = 0;
  for (int mode = 1; mode <= 9; mode++) {
    for (int cnt = 0; cnt <= n; cnt++) {
      int tot = cnt + f[mode];
      vector<int> lim(10, 0);
      bool ok = true;
      for (int i = 0; i <= 9; i++) {
        if (i <= mode) {
          if (f[i] > tot) {
            ok = false;
          }
          else {
            lim[i] = tot - f[i];
          }
        }
        else {
          if (f[i] >= tot) {
            ok = false;
          }
          else {
            lim[i] = tot - f[i] - 1;
          }
        }
      }
      if (ok) {
        int len = n - cnt;
        lim[mode] = 0;
        if (len >= 0) {
          ans += 1LL * mode * yo(len, lim) % mod * C[n][cnt] % mod;
          ans %= mod;
        }
      }
    }
  }
  return ans;
}
int32_t main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  for (int i = 0; i < N; i++) {
    C[i][0] = 1;
  }
  for (int i = 1; i < N; i++) {
    for (int j = 1; j <= i; j++) {
      C[i][j] = (C[i - 1][j] + C[i - 1][j - 1]) % mod;
    }
  }
  int t; cin >> t;
  while (t--) {
    string s; cin >> s;
    int n = s.size();
    vector<int> f(10, 0);
    int ans = 0;
    for (int i = 1; i < n; i++) {
      int k = s[i] - '0';
      for (int j = 1; j <= 9; j++) {
        f[j]++;
        ans += solve(n - i - 1, f);
        ans %= mod;
        f[j]--;
      }
    }
    for (int i = 0; i < n; i++) {
      int k = s[i] - '0';
      for (int j = i == 0 ? 1 : 0; j < k; j++) {
        f[j]++;
        ans += solve(n - i - 1, f);
        ans %= mod;
        f[j]--;
      }
      f[k]++;
    }
    int mx = *max_element(f.begin(), f.end());
    for (int i = 9; i >= 0; i--) {
      if (f[i] == mx) {
        ans += i;
        ans %= mod;
        break;
      }
    }
    cout << ans << '\n';
  }
  return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3660kb

input:

5
9
99
999
99999
999999

output:

45
615
6570
597600
5689830

result:

ok 5 number(s): "45 615 6570 597600 5689830"

Test #2:

score: 0
Accepted
time: 1ms
memory: 3856kb

input:

34
7
48
8
76
1
97
7
5
7
7
2
89
9
4
84
46
6
73
86
78
5
3
8
9
31
24
78
7
11
45
2
65
88
6

output:

28
236
36
420
1
597
28
15
28
28
3
525
45
10
484
221
21
399
500
435
15
6
36
45
145
104
435
28
47
215
3
341
516
21

result:

ok 34 numbers

Test #3:

score: 0
Accepted
time: 1ms
memory: 3592kb

input:

16
935
888
429
370
499
881
285
162
178
948
205
858
573
249
773
615

output:

6009
5618
2456
2078
2905
5562
1603
887
993
6121
1174
5378
3333
1374
4724
3631

result:

ok 16 numbers

Test #4:

score: 0
Accepted
time: 1ms
memory: 3820kb

input:

12
1242
9985
6469
9310
4191
9497
3166
3495
9711
9698
4137
2257

output:

7292
63531
37910
58047
23987
59479
18076
19675
61184
61086
23672
12913

result:

ok 12 numbers

Test #5:

score: 0
Accepted
time: 2ms
memory: 3652kb

input:

10
61195
72739
10164
79164
57851
12326
29132
55992
67377
13873

output:

337575
408170
63792
450686
316513
70493
157773
305011
374163
77954

result:

ok 10 numbers

Test #6:

score: 0
Accepted
time: 2ms
memory: 3596kb

input:

8
529983
127270
421121
291729
461233
695056
365028
271160

output:

2744573
687141
2160067
1500426
2359204
3705475
1851172
1381981

result:

ok 8 numbers

Test #7:

score: 0
Accepted
time: 3ms
memory: 3888kb

input:

7
7934351
8474057
1287369
5845624
7796773
5805755
7349121

output:

42465725
45668947
6716401
30094426
41554096
29861098
38756757

result:

ok 7 numbers

Test #8:

score: 0
Accepted
time: 18ms
memory: 3824kb

input:

3
5014252832385738
8762796162648653
919997886706385

output:

892033338
297722019
462512414

result:

ok 3 number(s): "892033338 297722019 462512414"

Test #9:

score: 0
Accepted
time: 63ms
memory: 3624kb

input:

2
775701797726112292362823101
75927988177061355614

output:

371275551
566830847

result:

ok 2 number(s): "371275551 566830847"

Test #10:

score: 0
Accepted
time: 553ms
memory: 3652kb

input:

1
65760982925996012426370962570581226245366145016666

output:

661063035

result:

ok 1 number(s): "661063035"

Test #11:

score: 0
Accepted
time: 564ms
memory: 3708kb

input:

1
62597468169905757754175023836706426691470692832490

output:

9983261

result:

ok 1 number(s): "9983261"

Test #12:

score: 0
Accepted
time: 576ms
memory: 3860kb

input:

1
78912847369504885593964702297317051208901751786824

output:

817123221

result:

ok 1 number(s): "817123221"

Test #13:

score: 0
Accepted
time: 640ms
memory: 3668kb

input:

1
99999999999999999999999999999999999999999999999999

output:

25251932

result:

ok 1 number(s): "25251932"

Test #14:

score: 0
Accepted
time: 420ms
memory: 3624kb

input:

1
999999999999999999999999999999999999999999999

output:

439421821

result:

ok 1 number(s): "439421821"

Test #15:

score: 0
Accepted
time: 260ms
memory: 3892kb

input:

1
9999999999999999999999999999999999999999

output:

387537647

result:

ok 1 number(s): "387537647"

Test #16:

score: 0
Accepted
time: 639ms
memory: 3644kb

input:

1
99999999999999999999999998889999898988888889998888

output:

909431898

result:

ok 1 number(s): "909431898"

Test #17:

score: 0
Accepted
time: 635ms
memory: 3596kb

input:

1
99999999999999999999999998989899988889989889999888

output:

289727470

result:

ok 1 number(s): "289727470"

Test #18:

score: 0
Accepted
time: 638ms
memory: 3544kb

input:

1
99999999999999999999999998998988898888898889898999

output:

962896416

result:

ok 1 number(s): "962896416"

Test #19:

score: 0
Accepted
time: 271ms
memory: 3604kb

input:

1
9999999999999999999989988898888989888899

output:

995903330

result:

ok 1 number(s): "995903330"

Test #20:

score: 0
Accepted
time: 260ms
memory: 3652kb

input:

1
9999999999999999999989999889889998998898

output:

385460258

result:

ok 1 number(s): "385460258"

Test #21:

score: 0
Accepted
time: 641ms
memory: 3588kb

input:

1
99999999999999999999999999999999999999999999999999

output:

25251932

result:

ok 1 number(s): "25251932"