oj.uz

Submission #201079

# Submission time Handle Problem Language Result Execution time Memory
201079 2020-02-09T09:44:12 Z georgerapeanu Cubeword (CEOI19_cubeword) C++11
100 / 100
 521 ms 8716 KB 
#include <iostream>
#include <cstring>
#include <vector>
#include <algorithm>

using namespace std;

const int MOD = 998244353;

int char_to_int(char c){
    if('a' <= c && c <= 'z'){
        return c - 'a'; 
    }
    else if('A' <= c && c <= 'Z'){
        return c - 'A' + 'z' - 'a' + 1;
    }
    else{
        return c - '0' + 'Z' - 'A' + 'z' - 'a' + 2;
    }
}

int n;
string s;
vector<string> stuff[15];


int words[62][62];
int cnt[62][62][62];

int fact[] = {1,1,2,6,24};

int get_cnt(vector<int> v){
    int lst = -1;
    int cnt = 0;
    int ans = fact[4];

    for(auto it:v){
        if(lst == it){
            cnt++;
        }
        else{
            ans /= fact[cnt];
            lst = it;
            cnt = 1;
        }
    }
    
    ans /= fact[cnt];

    return ans;
}

int solve(vector<string> &stuff){

    if(stuff.empty()){
        return 0;
    }

    sort(stuff.begin(),stuff.end());
    stuff.resize(unique(stuff.begin(),stuff.end()) - stuff.begin());

    memset(words,0,sizeof(words));

    for(int i = 0;i < 62;i++){
        for(int j = i;j < 62;j++){
            for(int k = j;k < 62;k++){
                cnt[i][j][k] = 0;
            }
        }
    }

    for(auto it:stuff){
        words[char_to_int(it[0])][char_to_int(it.back())]++;
    }

    for(int a = 0;a < 62;a++){
        for(int b = a;b < 62;b++){
            for(int c = b;c < 62;c++){
                for(int d = 0;d < 62;d++){
                    cnt[a][b][c] = (cnt[a][b][c] + 1LL * words[a][d] * words[b][d] * words[c][d]) % MOD;
                }
            }
        }
    }

    int ans = 0;

    for(int a = 0;a < 62;a++){
        for(int b = a;b < 62;b++){
            for(int c = b;c < 62;c++){
                for(int d = c;d < 62;d++){
                    int num = get_cnt({a,b,c,d});
                    ans = (ans + (num + 0LL) * ((1LL * cnt[a][b][c] * cnt[a][b][d] % MOD) * (1LL * cnt[a][c][d] * cnt[b][c][d] % MOD) % MOD)) % MOD;
                }
            }
        }
    }

    return ans;
}

int main(){

    cin >> n;

    for(int i = 1;i <= n;i++){
        cin >> s;
        stuff[s.size()].push_back(s);
        reverse(s.begin(),s.end());
        stuff[s.size()].push_back(s);
    }

    int ans = 0;

    for(int i = 3;i <= 10;i++){
        ans += solve(stuff[i]);
        if(ans >= MOD){
            ans -= MOD;
        }
    }

    cout << ans;

    return 0;
}

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 509 ms 7732 KB Output is correct
2 Correct 501 ms 8648 KB Output is correct
3 Correct 508 ms 8376 KB Output is correct
4 Correct 490 ms 8660 KB Output is correct
5 Correct 493 ms 8692 KB Output is correct
6 Correct 503 ms 8508 KB Output is correct
7 Correct 501 ms 8700 KB Output is correct
8 Correct 504 ms 8716 KB Output is correct
9 Correct 491 ms 8636 KB Output is correct
10 Correct 512 ms 8572 KB Output is correct
11 Correct 511 ms 8488 KB Output is correct
12 Correct 504 ms 8528 KB Output is correct
13 Correct 499 ms 8656 KB Output is correct
14 Correct 518 ms 8604 KB Output is correct
15 Correct 521 ms 8544 KB Output is correct
16 Correct 514 ms 8580 KB Output is correct
17 Correct 508 ms 8580 KB Output is correct
18 Correct 489 ms 8612 KB Output is correct
19 Correct 503 ms 8564 KB Output is correct
20 Correct 490 ms 8412 KB Output is correct
21 Correct 512 ms 8556 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 509 ms 7732 KB Output is correct
2 Correct 501 ms 8648 KB Output is correct
3 Correct 508 ms 8376 KB Output is correct
4 Correct 490 ms 8660 KB Output is correct
5 Correct 493 ms 8692 KB Output is correct
6 Correct 503 ms 8508 KB Output is correct
7 Correct 501 ms 8700 KB Output is correct
8 Correct 504 ms 8716 KB Output is correct
9 Correct 491 ms 8636 KB Output is correct
10 Correct 512 ms 8572 KB Output is correct
11 Correct 511 ms 8488 KB Output is correct
12 Correct 504 ms 8528 KB Output is correct
13 Correct 499 ms 8656 KB Output is correct
14 Correct 518 ms 8604 KB Output is correct
15 Correct 521 ms 8544 KB Output is correct
16 Correct 514 ms 8580 KB Output is correct
17 Correct 508 ms 8580 KB Output is correct
18 Correct 489 ms 8612 KB Output is correct
19 Correct 503 ms 8564 KB Output is correct
20 Correct 490 ms 8412 KB Output is correct
21 Correct 512 ms 8556 KB Output is correct
22 Correct 503 ms 8192 KB Output is correct
23 Correct 472 ms 8300 KB Output is correct
24 Correct 485 ms 8164 KB Output is correct
25 Correct 489 ms 8292 KB Output is correct
26 Correct 479 ms 8180 KB Output is correct
27 Correct 507 ms 8312 KB Output is correct
28 Correct 501 ms 8400 KB Output is correct
29 Correct 480 ms 8628 KB Output is correct
30 Correct 473 ms 8632 KB Output is correct
31 Correct 486 ms 8304 KB Output is correct
32 Correct 475 ms 8276 KB Output is correct
33 Correct 490 ms 8488 KB Output is correct
34 Correct 466 ms 8464 KB Output is correct
35 Correct 482 ms 8276 KB Output is correct
36 Correct 497 ms 8416 KB Output is correct
37 Correct 517 ms 8368 KB Output is correct
38 Correct 502 ms 8360 KB Output is correct
39 Correct 490 ms 8412 KB Output is correct
40 Correct 508 ms 8360 KB Output is correct
41 Correct 502 ms 8628 KB Output is correct
42 Correct 503 ms 8336 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 509 ms 7732 KB Output is correct
2 Correct 501 ms 8648 KB Output is correct
3 Correct 508 ms 8376 KB Output is correct
4 Correct 490 ms 8660 KB Output is correct
5 Correct 493 ms 8692 KB Output is correct
6 Correct 503 ms 8508 KB Output is correct
7 Correct 501 ms 8700 KB Output is correct
8 Correct 504 ms 8716 KB Output is correct
9 Correct 491 ms 8636 KB Output is correct
10 Correct 512 ms 8572 KB Output is correct
11 Correct 511 ms 8488 KB Output is correct
12 Correct 504 ms 8528 KB Output is correct
13 Correct 499 ms 8656 KB Output is correct
14 Correct 518 ms 8604 KB Output is correct
15 Correct 521 ms 8544 KB Output is correct
16 Correct 514 ms 8580 KB Output is correct
17 Correct 508 ms 8580 KB Output is correct
18 Correct 489 ms 8612 KB Output is correct
19 Correct 503 ms 8564 KB Output is correct
20 Correct 490 ms 8412 KB Output is correct
21 Correct 512 ms 8556 KB Output is correct
22 Correct 503 ms 8192 KB Output is correct
23 Correct 472 ms 8300 KB Output is correct
24 Correct 485 ms 8164 KB Output is correct
25 Correct 489 ms 8292 KB Output is correct
26 Correct 479 ms 8180 KB Output is correct
27 Correct 507 ms 8312 KB Output is correct
28 Correct 501 ms 8400 KB Output is correct
29 Correct 480 ms 8628 KB Output is correct
30 Correct 473 ms 8632 KB Output is correct
31 Correct 486 ms 8304 KB Output is correct
32 Correct 475 ms 8276 KB Output is correct
33 Correct 490 ms 8488 KB Output is correct
34 Correct 466 ms 8464 KB Output is correct
35 Correct 482 ms 8276 KB Output is correct
36 Correct 497 ms 8416 KB Output is correct
37 Correct 517 ms 8368 KB Output is correct
38 Correct 502 ms 8360 KB Output is correct
39 Correct 490 ms 8412 KB Output is correct
40 Correct 508 ms 8360 KB Output is correct
41 Correct 502 ms 8628 KB Output is correct
42 Correct 503 ms 8336 KB Output is correct
43 Correct 494 ms 8360 KB Output is correct
44 Correct 469 ms 8260 KB Output is correct
45 Correct 505 ms 8172 KB Output is correct
46 Correct 485 ms 8436 KB Output is correct
47 Correct 484 ms 8508 KB Output is correct
48 Correct 482 ms 8500 KB Output is correct
49 Correct 506 ms 8172 KB Output is correct
50 Correct 487 ms 8276 KB Output is correct
51 Correct 471 ms 8228 KB Output is correct
52 Correct 494 ms 8232 KB Output is correct
53 Correct 490 ms 8268 KB Output is correct
54 Correct 504 ms 8292 KB Output is correct
55 Correct 496 ms 8364 KB Output is correct
56 Correct 489 ms 8452 KB Output is correct
57 Correct 496 ms 8500 KB Output is correct
58 Correct 509 ms 8220 KB Output is correct
59 Correct 496 ms 8292 KB Output is correct
60 Correct 504 ms 8484 KB Output is correct
61 Correct 483 ms 8352 KB Output is correct
62 Correct 477 ms 8312 KB Output is correct
63 Correct 480 ms 8436 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 509 ms 7732 KB Output is correct
2 Correct 501 ms 8648 KB Output is correct
3 Correct 508 ms 8376 KB Output is correct
4 Correct 490 ms 8660 KB Output is correct
5 Correct 493 ms 8692 KB Output is correct
6 Correct 503 ms 8508 KB Output is correct
7 Correct 501 ms 8700 KB Output is correct
8 Correct 504 ms 8716 KB Output is correct
9 Correct 491 ms 8636 KB Output is correct
10 Correct 512 ms 8572 KB Output is correct
11 Correct 511 ms 8488 KB Output is correct
12 Correct 504 ms 8528 KB Output is correct
13 Correct 499 ms 8656 KB Output is correct
14 Correct 518 ms 8604 KB Output is correct
15 Correct 521 ms 8544 KB Output is correct
16 Correct 514 ms 8580 KB Output is correct
17 Correct 508 ms 8580 KB Output is correct
18 Correct 489 ms 8612 KB Output is correct
19 Correct 503 ms 8564 KB Output is correct
20 Correct 490 ms 8412 KB Output is correct
21 Correct 512 ms 8556 KB Output is correct
22 Correct 503 ms 8192 KB Output is correct
23 Correct 472 ms 8300 KB Output is correct
24 Correct 485 ms 8164 KB Output is correct
25 Correct 489 ms 8292 KB Output is correct
26 Correct 479 ms 8180 KB Output is correct
27 Correct 507 ms 8312 KB Output is correct
28 Correct 501 ms 8400 KB Output is correct
29 Correct 480 ms 8628 KB Output is correct
30 Correct 473 ms 8632 KB Output is correct
31 Correct 486 ms 8304 KB Output is correct
32 Correct 475 ms 8276 KB Output is correct
33 Correct 490 ms 8488 KB Output is correct
34 Correct 466 ms 8464 KB Output is correct
35 Correct 482 ms 8276 KB Output is correct
36 Correct 497 ms 8416 KB Output is correct
37 Correct 517 ms 8368 KB Output is correct
38 Correct 502 ms 8360 KB Output is correct
39 Correct 490 ms 8412 KB Output is correct
40 Correct 508 ms 8360 KB Output is correct
41 Correct 502 ms 8628 KB Output is correct
42 Correct 503 ms 8336 KB Output is correct
43 Correct 494 ms 8360 KB Output is correct
44 Correct 469 ms 8260 KB Output is correct
45 Correct 505 ms 8172 KB Output is correct
46 Correct 485 ms 8436 KB Output is correct
47 Correct 484 ms 8508 KB Output is correct
48 Correct 482 ms 8500 KB Output is correct
49 Correct 506 ms 8172 KB Output is correct
50 Correct 487 ms 8276 KB Output is correct
51 Correct 471 ms 8228 KB Output is correct
52 Correct 494 ms 8232 KB Output is correct
53 Correct 490 ms 8268 KB Output is correct
54 Correct 504 ms 8292 KB Output is correct
55 Correct 496 ms 8364 KB Output is correct
56 Correct 489 ms 8452 KB Output is correct
57 Correct 496 ms 8500 KB Output is correct
58 Correct 509 ms 8220 KB Output is correct
59 Correct 496 ms 8292 KB Output is correct
60 Correct 504 ms 8484 KB Output is correct
61 Correct 483 ms 8352 KB Output is correct
62 Correct 477 ms 8312 KB Output is correct
63 Correct 480 ms 8436 KB Output is correct
64 Correct 492 ms 8492 KB Output is correct
65 Correct 484 ms 8604 KB Output is correct
66 Correct 482 ms 8312 KB Output is correct
67 Correct 495 ms 8424 KB Output is correct
68 Correct 503 ms 8244 KB Output is correct
69 Correct 494 ms 8240 KB Output is correct
70 Correct 490 ms 8420 KB Output is correct
71 Correct 483 ms 8224 KB Output is correct
72 Correct 509 ms 8308 KB Output is correct
73 Correct 493 ms 8256 KB Output is correct
74 Correct 501 ms 8460 KB Output is correct
75 Correct 492 ms 8364 KB Output is correct
76 Correct 505 ms 8236 KB Output is correct
77 Correct 477 ms 8536 KB Output is correct
78 Correct 482 ms 8248 KB Output is correct
79 Correct 496 ms 8192 KB Output is correct
80 Correct 482 ms 8172 KB Output is correct
81 Correct 466 ms 8108 KB Output is correct
82 Correct 485 ms 8624 KB Output is correct
83 Correct 475 ms 8356 KB Output is correct
84 Correct 505 ms 8168 KB Output is correct