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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
#772800#9536. Athlete Welcome CeremonyluishghWA 63ms934816kbC++203.3kb2024-11-22 21:55:182024-11-22 21:55:18

Judging History

This is the latest submission verdict.

  • [2024-11-22 21:55:18]
  • Judged
  • Verdict: WA
  • Time: 63ms
  • Memory: 934816kb
  • [2024-11-22 21:55:18]
  • Submitted

answer

#include <bits/stdc++.h>

using namespace std;

#define _ ios_base::sync_with_stdio(0);cin.tie(0);
#define endl '\n'

typedef long long ll;

const int INF = 0x3f3f3f3f;
const ll LINF = 0x3f3f3f3f3f3f3f3fll;

#define int ll

const int MOD  = 1e9 + 7;

ll add(ll a, ll b) {
a%= MOD;
b%=MOD;
  ll r = a + b;
  //if (r >= MOD) r -= MOD;
  return r % MOD;
}

const int MAX = 300 + 10;
//const int MAX = 10;

ll dp[MAX][MAX][MAX][3];

signed main() {_

//cout << "entrou" << endl;

  int n, q; cin >> n >> q;

  string s; cin >> s;

  int tot = n;

  for (auto c : s) if (c != '?') tot--;

  // dp[i][b][c][last] = dp[i+1][b-1][c][b] + dp[i+1][b][c-1][last]

  memset(dp, 0, sizeof dp);
  //cout << "memsetou" << endl;

  dp[n][0][0][0] = 1;
  dp[n][0][0][1] = 1;
  dp[n][0][0][2] = 1;

  int cnt = 0;

  for (int i = n - 1; i >= 0; i--) {
    if (s[i] == '?') cnt++;
    for (int b = 0; b <= n; b++) {
      for (int c = 0; c <= n; c++) {
        if (b + c > cnt) continue;
        int a = cnt - b - c;

        if (s[i] == 'a') {
          dp[i][b][c][0] = 0;
          dp[i][b][c][1] = dp[i+1][b][c][0];
          dp[i][b][c][2] = dp[i+1][b][c][0];
        } else if (s[i] == 'b') {
          dp[i][b][c][0] = dp[i+1][b][c][1];
          dp[i][b][c][1] = 0;
          dp[i][b][c][2] = dp[i+1][b][c][1];
        } else if (s[i] == 'c') {
          dp[i][b][c][0] = dp[i+1][b][c][2];
          dp[i][b][c][1] = dp[i+1][b][c][2];
          dp[i][b][c][2] = 0;
        } else {
          for (int last = 0; last < 3; last++) {
            auto & pdm = dp[i][b][c][last];
            if (a > 0 and last != 0) pdm = add(pdm, dp[i+1][b][c][0]);
            if (b > 0 and last != 1) pdm = add(pdm, dp[i+1][b-1][c][1]);
            if (c > 0 and last != 2) pdm = add(pdm, dp[i+1][b][c-1][2]);
            //cerr << b << ' '  << c << ' ' << last << ' ' <<  pdm << endl;
          }
        }

      }
    }
  }

  ll ans[MAX][MAX][MAX];

  auto query = [&] (int a, int b, int c) -> ll {
    ll ret = 0;
    if (a + b + c != tot) return 0;
    if (s[0] == '?') {
      ret = add(ret, dp[1][b][c][0]);
      if (b > 0) ret = add(ret, dp[1][b-1][c][1]);
      if (c > 0) ret = add(ret, dp[1][b][c-1][2]);
    } else {
      if (s[0] == 'a') ret = add(ret, dp[1][b][c][0]);
      if (s[0] == 'b') ret = add(ret, dp[1][b][c][1]);
      if (s[0] == 'c') ret = add(ret, dp[1][b][c][2]);
    }
    return ret;
  };

  ans[1][0][0] = query(1, 0, 0);
  ans[0][1][0] = query(0, 1, 0);
  ans[0][0][1] = query(0, 0, 1);

    for (int a = 0; a <= n; a++) {
      for (int b = 0; b <= n; b++) {
        for (int c = 0; c <= n; c++) {
          auto & pdm = ans[a][b][c];
          pdm = query(a, b, c);
          if (a > 0) pdm = add(pdm, ans[a-1][b][c]);
          if (b > 0) pdm = add(pdm, ans[a][b-1][c]);
          if (c > 0) pdm = add(pdm, ans[a][b][c-1]);
          if (a > 0 and b > 0 and c > 0) pdm = add(pdm, ans[a-1][b-1][c-1]);

          if (a > 0 and b > 0) pdm -= ans[a-1][b-1][c];
          if (a > 0 and c > 0) pdm -= ans[a-1][b][c-1];
          if (b > 0 and c > 0) pdm -= ans[a][b-1][c-1];



        }
      }
    }

  while(q--) {
    int x, y, z; cin >> x >> y >> z;

    cout << ans[x][y][z] << endl;
  }

  return 0;
}

详细

Test #1:

score: 100
Accepted
time: 39ms
memory: 934584kb

input:

6 3
a?b??c
2 2 2
1 1 1
1 0 2

output:

3
1
1

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 36ms
memory: 934468kb

input:

6 3
??????
2 2 2
2 3 3
3 3 3

output:

30
72
96

result:

ok 3 lines

Test #3:

score: 0
Accepted
time: 55ms
memory: 934584kb

input:

1 1
?
0 1 1

output:

2

result:

ok single line: '2'

Test #4:

score: 0
Accepted
time: 20ms
memory: 934564kb

input:

10 10
acab?cbaca
0 2 0
1 1 2
4 2 3
1 1 1
3 5 1
0 5 2
2 2 0
1 2 5
4 3 0
1 1 3

output:

0
1
1
1
1
0
1
1
1
1

result:

ok 10 lines

Test #5:

score: 0
Accepted
time: 28ms
memory: 934584kb

input:

10 10
?c?c?cbac?
10 5 1
5 8 7
9 2 6
5 7 1
5 2 6
5 6 5
5 10 3
9 1 10
2 5 9
1 2 9

output:

16
16
11
16
11
16
16
5
11
0

result:

ok 10 lines

Test #6:

score: 0
Accepted
time: 35ms
memory: 934816kb

input:

50 100
?abacbacab?cbcbcb?acabcbabcbcacbababc?caba?acacbca
8 3 8
2 4 8
8 7 3
0 9 2
10 8 7
7 6 5
4 10 2
6 9 3
3 6 6
9 10 8
2 5 8
8 1 0
3 5 0
1 0 6
5 0 8
6 5 5
1 7 9
7 7 10
4 7 5
6 6 4
10 1 2
4 1 7
10 0 8
7 6 3
1 9 1
4 7 2
8 4 0
8 6 1
5 10 4
5 8 2
5 8 4
4 5 9
5 2 1
1 10 9
4 10 1
8 4 3
8 9 9
8 0 1
0 8 0...

output:

8
8
8
0
8
8
6
8
8
8
8
0
0
0
1
8
4
8
8
8
2
4
1
8
1
6
0
2
8
6
8
8
1
4
2
8
8
0
0
8
2
0
8
8
8
4
8
8
8
8
2
0
0
4
8
8
1
8
7
6
7
0
8
8
8
0
4
7
8
4
0
8
0
4
8
8
8
7
8
4
7
2
8
8
8
0
2
2
8
8
8
4
4
0
8
0
8
8
1
1

result:

ok 100 lines

Test #7:

score: 0
Accepted
time: 39ms
memory: 934812kb

input:

50 100
b????????bca?????c?b??ca?acac?b?b???ca?ab???a?a???
35 43 36
12 49 47
7 11 34
38 44 22
42 17 10
49 8 38
18 26 44
6 18 14
28 29 6
48 32 47
29 15 48
1 5 33
24 17 18
10 27 32
19 10 34
2 23 9
14 24 39
46 12 34
9 49 26
21 8 46
43 43 3
31 16 2
8 27 7
24 41 35
17 25 31
0 13 47
24 31 23
33 40 30
36 39...

output:

34272000
31599360
497244
34272000
17637520
12290752
34272000
93044
415832
34272000
34272000
0
34272000
16360704
27933952
0
34272000
33886976
7896832
12290752
718
24
0
34272000
34272000
0
34272000
34272000
34272000
32254720
0
5666944
34256640
34272000
34272000
12290752
30493248
34256640
20630016
0
10...

result:

ok 100 lines

Test #8:

score: 0
Accepted
time: 47ms
memory: 934588kb

input:

100 1000
c?cbababcabacbacbacacbacabcbabababacababcbcab?cbabacbacbcbcacbab?bcabcbcababcacbabacbcb?babcbab?baca
13 11 4
4 17 20
14 5 2
16 14 15
8 12 17
19 5 11
5 17 12
20 7 6
19 10 1
6 5 0
13 1 9
7 17 1
20 4 16
11 12 18
19 2 16
18 1 11
19 16 3
7 1 0
6 9 16
6 9 16
6 20 7
0 16 20
1 2 8
16 5 20
18 14 18
...

output:

16
15
14
16
16
16
16
16
8
2
16
8
16
16
16
16
16
2
16
16
16
0
1
16
16
5
1
5
16
16
16
16
16
15
16
13
16
15
2
16
16
1
8
16
16
16
15
0
16
15
16
16
16
16
8
8
16
16
16
16
16
16
8
16
16
1
8
8
16
16
1
16
1
0
16
2
2
16
7
16
16
8
16
16
16
16
1
16
14
16
16
16
16
5
16
16
14
16
11
16
15
11
2
1
8
16
16
7
16
5
16
...

result:

ok 1000 lines

Test #9:

score: -100
Wrong Answer
time: 63ms
memory: 934792kb

input:

100 1000
?????c??????????????????????????b???a????a?????????????????????????c????????????????????????????????
43 38 20
27 40 32
39 27 33
28 50 43
50 3 46
38 46 14
42 48 10
45 25 28
49 10 49
38 17 42
41 49 22
41 18 44
46 47 25
17 44 35
34 43 22
47 42 32
32 44 40
36 41 24
45 38 45
49 44 18
42 34 32
43...

output:

-14509524449
3143989857
3119661950
-513896295732812
10104
-780899456
5479284738
-2235781492
262903848065
-2340305473
3216204309575
40105920782
-102137808935462
182802705
4215438639
-559137065221648
22053797735575
-9096082650
21068046041472143
1423287232585
393578698580
15694640205517329
-58554219367...

result:

wrong answer 1st lines differ - expected: '490475656', found: '-14509524449'