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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
#737628#9536. Athlete Welcome Ceremonyucup-team1412WA 66ms223048kbC++143.1kb2024-11-12 16:28:022024-11-12 16:28:06

Judging History

This is the latest submission verdict.

  • [2024-11-12 16:28:06]
  • Judged
  • Verdict: WA
  • Time: 66ms
  • Memory: 223048kb
Show
  • [2024-11-12 16:28:02]
  • Submitted

answer

//https://contest.ucup.ac/contest/1821/problem/9536?v=1
//f[i][x][y][p] : 考虑前i个字符，使用j个a，k个b，并且最后一个字符是p
#include<bits/stdc++.h>
using namespace std;
#define ll long long
const ll maxn = 305;
ll n , q;
string c, s;
ll f[maxn][maxn][maxn][3];
ll g[maxn][maxn][maxn];
ll cnt[3];
const ll mod = 1e9 + 7;
signed main(){
    cin >> n >> q;
    cin >> c;
    s = "0";
    s += c;

    for(ll i = 1 ; i <= n;i++){
        if(s[i]!='?')cnt[ (ll)(s[i] - 'a') ]++; 
    }


    if(s[1] == '?'){
        f[1][2][1][0] = 1;
        f[1][1][2][1] = 1;
        f[1][1][1][2] = 1;

    }
    else{
        if(s[1] == 'a')f[1][2][1][0] = 1;
        if(s[1] == 'b')f[1][1][2][1] = 1;
        if(s[1] == 'c')f[1][1][1][2] = 1;
    }

    for(ll i = 2; i <= n ;i ++){
        for(ll x = 1 ; x <= i + 1 ; x++){
            for(ll y = 1 ; x + y <= i + 2; y++ ){
                // cout <<  "fdassdas" << endl;
                ll z = i + 3 - x - y;

                if(s[i] != '?'){
                    if(s[i] == 'a' && x >= 1){
                        //f[1][2][1][0]
                        f[i][x][y][0] = ( f[i - 1][x - 1][y][1] + f[i - 1][x - 1][y][2]) % mod ;
                    }
                    else if ( s[i] == 'b' && y >= 1 ){
                        f[i][x][y][1] = (f[i - 1][x][y - 1][0] + f[i - 1][x][y - 1][2])% mod ;
                    }
                    else if ( s[i] == 'c' && z >= 1 ){
                        f[i][x][y][2] = (f[i - 1][x][y][0] + f[i - 1][x][y][1] ) % mod;
                    }
                }
                else{
                    if(s[i - 1] != 'a' && x >= 1  ){//can select a
                        f[i][x][y][0] = (  f[i - 1][x - 1][y][1] + f[i - 1][x - 1][y][2]) % mod;
                    }
                    if(s[i - 1] != 'b' && y >= 1){//can select b
                        f[i][x][y][1] = (f[i - 1][x][y - 1][0]  + f[i - 1][x][y - 1][2]) % mod;
                    }
                    if(s[i - 1] != 'c' && z >= 1){//can select c
                        f[i][x][y][2] = (f[i - 1][x][y][0] + f[i - 1][x][y][1] ) % mod;
                    }
                }


            }
        }
    }


    // cout << f[6][3][3][2] << endl;
    for(ll x = 1 ; x <= 2 * n + 1; x++){
        for(ll y = 1 ;y <= 2 * n + 1; y++){
            for(ll z = 1 ; z <= 2 * n + 1 ; z++){

                ll res = 0;
                for(ll  i = 0 ; i <= 2 ; i++){
                    res = ( res + f[n][x][y][i])% mod;
                }
                // cout << res << endl;

                g[x][y][z] = (g[x-1][y][z] + g[x][y-1][z] + g[x][y][z-1] - g[x-1][y-1][z]-g[x-1][y][z-1]-g[x][y-1][z-1] + g[x-1][y-1][z-1] )%mod;
                if(x + y + z == n + 3){
                    g[x][y][z] = (g[x][y][z] + res) % mod;
                }
                // cout << g[x][y][z] << endl;
            }



        }
    }

    while(q--){
        ll x,y,z;
        cin >> x >> y >> z;
        cout << g[x + 1 + cnt[0] ][y + 1 + cnt[1] ][z + 1 + cnt[2] ] % mod<< endl;
    }

    return 0;
}
源文件, 语言: C++14

详细

Test #1:

score: 100
Accepted
time: 2ms
memory: 16348kb

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: 0ms
memory: 16296kb

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: 1ms
memory: 5788kb

input:

1 1
?
0 1 1

output:

2

result:

ok single line: '2'

Test #4:

score: 0
Accepted
time: 4ms
memory: 25200kb

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: 0ms
memory: 27256kb

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: 8ms
memory: 104808kb

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: 4ms
memory: 107020kb

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: 56ms
memory: 197976kb

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: 66ms
memory: 223048kb

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:

490475656
-856010171
-880338078
-292135540
10104
219100551
-520715304
-235781478
-96153776
-340305459
204287063
-894079505
191779504
182802705
-784561396
-61307689
797581204
903917420
-106004179
287222624
-421304178
95654849
-542189581
-290650212
85961844
-76669513
783007506
-888880289
295402274
241...

result:

wrong answer 2nd lines differ - expected: '143989836', found: '-856010171'
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服务器时间: 2025-02-07 01:45:28 | 开源项目