oj.uz

Submission #241632

# Submission time Handle Problem Language Result Execution time Memory
241632 2020-06-24T21:22:45 Z luciocf Cubeword (CEOI19_cubeword) C++14
100 / 100
 530 ms 22392 KB 
// CEOI 2019 - Cubeword
// Lúcio Cardoso

// Solution is the same as in editorial in CF

#include <bits/stdc++.h>

#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimization ("unroll-loops")

using namespace std;

const int maxn = 62;
const int mod = 998244353;

int cnt[8][maxn][maxn];
int qtd[8][maxn][maxn][maxn];

inline int get(char c)
{
	if (c >= 'a' && c <= 'z') return (int)(c-'a');
	if (c >= 'A' && c <= 'Z') return (int)(c-'A')+26;
	return (int)(c-'0')+52;
}

int main(void)
{
	int n;
	scanf("%d", &n);

	map<string, bool> mark;

	for (int i = 1; i <= n; i++)
	{
		string s;
		cin >> s;

		if (!mark[s])
			cnt[s.size()-3][get(s[0])][get(s.back())]++;

		mark[s] = true;

		reverse(s.begin(), s.end());

		if (!mark[s])
			cnt[s.size()-3][get(s[0])][get(s.back())]++;

		mark[s] = true;
	}

	for (int sz = 0; sz < 8; sz++)
		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++)
						qtd[sz][a][b][c] = (1ll*qtd[sz][a][b][c] + 1ll*cnt[sz][d][a]*cnt[sz][d][b]*cnt[sz][d][c])%mod;

	int ans = 0;

	for (int sz = 0; sz < 8; sz++)
	{
		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 p1 = (1ll*qtd[sz][a][c][d]*qtd[sz][b][c][d])%mod;
						int p2 = (1ll*qtd[sz][a][b][d]*qtd[sz][a][b][c])%mod;

						int k = (1ll*p1*p2)%mod, mult = 24;

						if (a == b && b == c && c == d) mult /= 24;
						else if (a == b && b == c) mult /= 6;
						else if (a == b)
						{
							mult /= 2;
							if (c == d) mult /= 2;
						}
						else
						{
							if (b == c && c == d) mult /= 6;
							else if (b == c) mult /= 2;
							else if (c == d) mult /= 2;
						}

						ans = (ans + (1ll*mult*k)%mod)%mod;
					}
				}
			}
		}
	}

	printf("%d\n", ans);
}

Compilation message

cubeword.cpp:10:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("unroll-loops")
 
cubeword.cpp: In function 'int main()':
cubeword.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 474 ms 21240 KB Output is correct
2 Correct 497 ms 21196 KB Output is correct
3 Correct 463 ms 21244 KB Output is correct
4 Correct 463 ms 21240 KB Output is correct
5 Correct 483 ms 21116 KB Output is correct
6 Correct 488 ms 21276 KB Output is correct
7 Correct 466 ms 21240 KB Output is correct
8 Correct 486 ms 21240 KB Output is correct
9 Correct 498 ms 21348 KB Output is correct
10 Correct 478 ms 21172 KB Output is correct
11 Correct 467 ms 21216 KB Output is correct
12 Correct 478 ms 21240 KB Output is correct
13 Correct 489 ms 21400 KB Output is correct
14 Correct 467 ms 21292 KB Output is correct
15 Correct 462 ms 21112 KB Output is correct
16 Correct 473 ms 21240 KB Output is correct
17 Correct 482 ms 21368 KB Output is correct
18 Correct 506 ms 21112 KB Output is correct
19 Correct 507 ms 21240 KB Output is correct
20 Correct 497 ms 21068 KB Output is correct
21 Correct 468 ms 21112 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 474 ms 21240 KB Output is correct
2 Correct 497 ms 21196 KB Output is correct
3 Correct 463 ms 21244 KB Output is correct
4 Correct 463 ms 21240 KB Output is correct
5 Correct 483 ms 21116 KB Output is correct
6 Correct 488 ms 21276 KB Output is correct
7 Correct 466 ms 21240 KB Output is correct
8 Correct 486 ms 21240 KB Output is correct
9 Correct 498 ms 21348 KB Output is correct
10 Correct 478 ms 21172 KB Output is correct
11 Correct 467 ms 21216 KB Output is correct
12 Correct 478 ms 21240 KB Output is correct
13 Correct 489 ms 21400 KB Output is correct
14 Correct 467 ms 21292 KB Output is correct
15 Correct 462 ms 21112 KB Output is correct
16 Correct 473 ms 21240 KB Output is correct
17 Correct 482 ms 21368 KB Output is correct
18 Correct 506 ms 21112 KB Output is correct
19 Correct 507 ms 21240 KB Output is correct
20 Correct 497 ms 21068 KB Output is correct
21 Correct 468 ms 21112 KB Output is correct
22 Correct 462 ms 21728 KB Output is correct
23 Correct 477 ms 21880 KB Output is correct
24 Correct 452 ms 21880 KB Output is correct
25 Correct 464 ms 21752 KB Output is correct
26 Correct 465 ms 21752 KB Output is correct
27 Correct 465 ms 21880 KB Output is correct
28 Correct 456 ms 21752 KB Output is correct
29 Correct 461 ms 21772 KB Output is correct
30 Correct 468 ms 22008 KB Output is correct
31 Correct 447 ms 21752 KB Output is correct
32 Correct 492 ms 21752 KB Output is correct
33 Correct 471 ms 21880 KB Output is correct
34 Correct 480 ms 21752 KB Output is correct
35 Correct 458 ms 21752 KB Output is correct
36 Correct 456 ms 21880 KB Output is correct
37 Correct 486 ms 21752 KB Output is correct
38 Correct 457 ms 21752 KB Output is correct
39 Correct 464 ms 21752 KB Output is correct
40 Correct 491 ms 21752 KB Output is correct
41 Correct 474 ms 21752 KB Output is correct
42 Correct 470 ms 21752 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 474 ms 21240 KB Output is correct
2 Correct 497 ms 21196 KB Output is correct
3 Correct 463 ms 21244 KB Output is correct
4 Correct 463 ms 21240 KB Output is correct
5 Correct 483 ms 21116 KB Output is correct
6 Correct 488 ms 21276 KB Output is correct
7 Correct 466 ms 21240 KB Output is correct
8 Correct 486 ms 21240 KB Output is correct
9 Correct 498 ms 21348 KB Output is correct
10 Correct 478 ms 21172 KB Output is correct
11 Correct 467 ms 21216 KB Output is correct
12 Correct 478 ms 21240 KB Output is correct
13 Correct 489 ms 21400 KB Output is correct
14 Correct 467 ms 21292 KB Output is correct
15 Correct 462 ms 21112 KB Output is correct
16 Correct 473 ms 21240 KB Output is correct
17 Correct 482 ms 21368 KB Output is correct
18 Correct 506 ms 21112 KB Output is correct
19 Correct 507 ms 21240 KB Output is correct
20 Correct 497 ms 21068 KB Output is correct
21 Correct 468 ms 21112 KB Output is correct
22 Correct 462 ms 21728 KB Output is correct
23 Correct 477 ms 21880 KB Output is correct
24 Correct 452 ms 21880 KB Output is correct
25 Correct 464 ms 21752 KB Output is correct
26 Correct 465 ms 21752 KB Output is correct
27 Correct 465 ms 21880 KB Output is correct
28 Correct 456 ms 21752 KB Output is correct
29 Correct 461 ms 21772 KB Output is correct
30 Correct 468 ms 22008 KB Output is correct
31 Correct 447 ms 21752 KB Output is correct
32 Correct 492 ms 21752 KB Output is correct
33 Correct 471 ms 21880 KB Output is correct
34 Correct 480 ms 21752 KB Output is correct
35 Correct 458 ms 21752 KB Output is correct
36 Correct 456 ms 21880 KB Output is correct
37 Correct 486 ms 21752 KB Output is correct
38 Correct 457 ms 21752 KB Output is correct
39 Correct 464 ms 21752 KB Output is correct
40 Correct 491 ms 21752 KB Output is correct
41 Correct 474 ms 21752 KB Output is correct
42 Correct 470 ms 21752 KB Output is correct
43 Correct 462 ms 22020 KB Output is correct
44 Correct 504 ms 22224 KB Output is correct
45 Correct 498 ms 22008 KB Output is correct
46 Correct 466 ms 21880 KB Output is correct
47 Correct 467 ms 22140 KB Output is correct
48 Correct 465 ms 22008 KB Output is correct
49 Correct 452 ms 21932 KB Output is correct
50 Correct 458 ms 22112 KB Output is correct
51 Correct 503 ms 22108 KB Output is correct
52 Correct 456 ms 22008 KB Output is correct
53 Correct 530 ms 22052 KB Output is correct
54 Correct 495 ms 22136 KB Output is correct
55 Correct 460 ms 22392 KB Output is correct
56 Correct 463 ms 22016 KB Output is correct
57 Correct 466 ms 21880 KB Output is correct
58 Correct 439 ms 21880 KB Output is correct
59 Correct 480 ms 21964 KB Output is correct
60 Correct 461 ms 22008 KB Output is correct
61 Correct 456 ms 22008 KB Output is correct
62 Correct 457 ms 22008 KB Output is correct
63 Correct 487 ms 21896 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 474 ms 21240 KB Output is correct
2 Correct 497 ms 21196 KB Output is correct
3 Correct 463 ms 21244 KB Output is correct
4 Correct 463 ms 21240 KB Output is correct
5 Correct 483 ms 21116 KB Output is correct
6 Correct 488 ms 21276 KB Output is correct
7 Correct 466 ms 21240 KB Output is correct
8 Correct 486 ms 21240 KB Output is correct
9 Correct 498 ms 21348 KB Output is correct
10 Correct 478 ms 21172 KB Output is correct
11 Correct 467 ms 21216 KB Output is correct
12 Correct 478 ms 21240 KB Output is correct
13 Correct 489 ms 21400 KB Output is correct
14 Correct 467 ms 21292 KB Output is correct
15 Correct 462 ms 21112 KB Output is correct
16 Correct 473 ms 21240 KB Output is correct
17 Correct 482 ms 21368 KB Output is correct
18 Correct 506 ms 21112 KB Output is correct
19 Correct 507 ms 21240 KB Output is correct
20 Correct 497 ms 21068 KB Output is correct
21 Correct 468 ms 21112 KB Output is correct
22 Correct 462 ms 21728 KB Output is correct
23 Correct 477 ms 21880 KB Output is correct
24 Correct 452 ms 21880 KB Output is correct
25 Correct 464 ms 21752 KB Output is correct
26 Correct 465 ms 21752 KB Output is correct
27 Correct 465 ms 21880 KB Output is correct
28 Correct 456 ms 21752 KB Output is correct
29 Correct 461 ms 21772 KB Output is correct
30 Correct 468 ms 22008 KB Output is correct
31 Correct 447 ms 21752 KB Output is correct
32 Correct 492 ms 21752 KB Output is correct
33 Correct 471 ms 21880 KB Output is correct
34 Correct 480 ms 21752 KB Output is correct
35 Correct 458 ms 21752 KB Output is correct
36 Correct 456 ms 21880 KB Output is correct
37 Correct 486 ms 21752 KB Output is correct
38 Correct 457 ms 21752 KB Output is correct
39 Correct 464 ms 21752 KB Output is correct
40 Correct 491 ms 21752 KB Output is correct
41 Correct 474 ms 21752 KB Output is correct
42 Correct 470 ms 21752 KB Output is correct
43 Correct 462 ms 22020 KB Output is correct
44 Correct 504 ms 22224 KB Output is correct
45 Correct 498 ms 22008 KB Output is correct
46 Correct 466 ms 21880 KB Output is correct
47 Correct 467 ms 22140 KB Output is correct
48 Correct 465 ms 22008 KB Output is correct
49 Correct 452 ms 21932 KB Output is correct
50 Correct 458 ms 22112 KB Output is correct
51 Correct 503 ms 22108 KB Output is correct
52 Correct 456 ms 22008 KB Output is correct
53 Correct 530 ms 22052 KB Output is correct
54 Correct 495 ms 22136 KB Output is correct
55 Correct 460 ms 22392 KB Output is correct
56 Correct 463 ms 22016 KB Output is correct
57 Correct 466 ms 21880 KB Output is correct
58 Correct 439 ms 21880 KB Output is correct
59 Correct 480 ms 21964 KB Output is correct
60 Correct 461 ms 22008 KB Output is correct
61 Correct 456 ms 22008 KB Output is correct
62 Correct 457 ms 22008 KB Output is correct
63 Correct 487 ms 21896 KB Output is correct
64 Correct 453 ms 22392 KB Output is correct
65 Correct 466 ms 22240 KB Output is correct
66 Correct 460 ms 22324 KB Output is correct
67 Correct 461 ms 22264 KB Output is correct
68 Correct 455 ms 22136 KB Output is correct
69 Correct 452 ms 22136 KB Output is correct
70 Correct 457 ms 22272 KB Output is correct
71 Correct 446 ms 22264 KB Output is correct
72 Correct 447 ms 22264 KB Output is correct
73 Correct 446 ms 22220 KB Output is correct
74 Correct 470 ms 22392 KB Output is correct
75 Correct 445 ms 22264 KB Output is correct
76 Correct 479 ms 22264 KB Output is correct
77 Correct 441 ms 22264 KB Output is correct
78 Correct 450 ms 22264 KB Output is correct
79 Correct 464 ms 22268 KB Output is correct
80 Correct 452 ms 22260 KB Output is correct
81 Correct 463 ms 22324 KB Output is correct
82 Correct 444 ms 22136 KB Output is correct
83 Correct 450 ms 22392 KB Output is correct
84 Correct 443 ms 22264 KB Output is correct