QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#139467#6522. Digit ModeUrgantTeam#TL 229ms3596kbC++232.3kb2023-08-13 17:01:562023-08-13 17:02:34

Judging History

你现在查看的是最新测评结果

  • [2023-08-13 17:02:34]
  • 评测
  • 测评结果:TL
  • 用时:229ms
  • 内存:3596kb
  • [2023-08-13 17:01:56]
  • 提交

answer

#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
int const maxn = 55;
int mod = 1e9 + 7;
int C[maxn][maxn], cnt[10];
ll dp[maxn][maxn];

ll solve(int n, int c, int mx) {
    for (int i = 0; i <= 10; i++) {
        for (int j = 0; j < maxn; j++) dp[i][j] = 0;
    }
    dp[0][n] = 1;
    for (int i = 0; i <= 9; i++) {
        for (int lst = 0; lst <= n; lst++) {
            for (int now = 0; now <= min(mx - cnt[i], lst); now++) {
                if (i > c && now == mx - cnt[i]) continue;
                if (i == c && now != mx - cnt[i]) continue;
                dp[i + 1][lst - now] = (dp[i + 1][lst - now] + dp[i][lst] * C[lst][now]) % mod;
            }
        }
    }
    return dp[10][0];
}

int get(int n) {
    ll answer = 0;
    for (int c = 0; c <= 9; c++) {
        for (int cur = cnt[c]; cur <= cnt[c] + n; cur++) {
            answer = (answer + (ll)c * solve(n, c, cur)) % mod;
            //if (c == 1) cout << answer << endl;
        }
    }
    return answer;
}

main() {
#ifdef HOME
    freopen("input.txt", "r", stdin);
#endif // HOME
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int t;
    cin >> t;
    for (int i = 0; i < maxn; i++) C[i][0] = 1;
    for (int i = 1; i < maxn; i++) {
        for (int j = 1; j <= i; j++) C[i][j] = (C[i - 1][j] + C[i - 1][j - 1]) % mod;
    }
    while (t--) {
        string s;
        cin >> s;
        int ans = 0;
        for (int i = 0; i < 10; i++) cnt[i] = 0;
        for (int len = 1; len < s.size(); len++) {
            for (int c = 1; c <= 9; c++) {
                cnt[c]++;
                ans = (ans + get(len - 1)) % mod;
                cnt[c]--;
            }
        }
        //cnt[1] = 1;
        //cout << "OK" << endl;
        //cout << get(1) << endl;
        //exit(0);
        for (int i = 0; i < s.size(); i++) {
            for (int j = 0; j < s[i] - '0'; j++) {
                cnt[j]++;
                if (i || j) {
                    ans = (ans + get(s.size() - i - 1)) % mod;
                    //cout << i << " " << j << " " << ans << endl;
                    //if (i == 1 && j == 2) exit(0);
                }
                cnt[j]--;
            }
            cnt[s[i] - '0']++;
        }
        ans = (ans + get(0)) % mod;
        cout << ans << '\n';
    }
    return 0;
}


Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 3ms
memory: 3488kb

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: 0ms
memory: 3536kb

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: 2ms
memory: 3492kb

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: 3ms
memory: 3596kb

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: 4ms
memory: 3532kb

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: 3540kb

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: 8ms
memory: 3488kb

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: 64ms
memory: 3472kb

input:

3
5014252832385738
8762796162648653
919997886706385

output:

892033338
297722019
462512414

result:

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

Test #9:

score: 0
Accepted
time: 229ms
memory: 3480kb

input:

2
775701797726112292362823101
75927988177061355614

output:

371275551
566830847

result:

ok 2 number(s): "371275551 566830847"

Test #10:

score: -100
Time Limit Exceeded

input:

1
65760982925996012426370962570581226245366145016666

output:


result: