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Submission #198639

# Submission time Handle Problem Language Result Execution time Memory
198639 2020-01-27T06:03:20 Z arnold518 Cubeword (CEOI19_cubeword) C++14
100 / 100
 378 ms 19024 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1e5;
const int MAXS = 62;
const ll MOD = 998244353;

int N;
ll ans, cnt[70][70], D[70][70][70];
vector<string> S, T[15];

int convert(char s)
{
	if('a'<=s && s<='z') return s-'a';
	if('A'<=s && s<='Z') return s-'A'+26;
	if('0'<=s && s<='9') return s-'0'+52;
}

int main()
{
	int i, j, p, q, k;

	//ios_base::sync_with_stdio(false);
	//cin.tie(NULL); cout.tie(NULL);
	cin>>N;
	for(i=1; i<=N; i++)
	{
		string s, t;
		cin>>s; t=s;
		reverse(t.begin(), t.end());
		S.push_back(s);
		S.push_back(t);
	}

	sort(S.begin(), S.end());
	S.erase(unique(S.begin(), S.end()), S.end());

	for(i=0; i<S.size(); i++) T[S[i].size()].push_back(S[i]);

	for(k=3; k<=10; k++)
	{
		vector<string> V=T[k];
		if(V.empty()) continue;

		for(i=0; i<MAXS; i++) for(j=0; j<MAXS; j++) cnt[i][j]=0;
		for(i=0; i<V.size(); i++) cnt[convert(V[i][0])][convert(V[i][V[i].size()-1])]++;

		for(i=0; i<MAXS; i++) for(j=i; j<MAXS; j++) for(p=j; p<MAXS; p++)
		{
			D[i][j][p]=0;
			for(q=0; q<MAXS; q++)
			{
				D[i][j][p]+=cnt[i][q]*cnt[j][q]%MOD*cnt[p][q]%MOD;
				D[i][j][p]%=MOD;
			}
		}

		for(i=0; i<MAXS; i++) for(j=i+1; j<MAXS; j++) for(p=j+1; p<MAXS; p++) for(q=p+1; q<MAXS; q++)
		{
			ans+=24*D[i][j][p]%MOD*D[i][j][q]%MOD*D[i][p][q]%MOD*D[j][p][q]%MOD;
			ans%=MOD;
		}

		for(i=0; i<MAXS; i++) for(j=i, p=j+1; p<MAXS; p++) for(q=p+1; q<MAXS; q++)
		{
			ans+=12*D[i][j][p]%MOD*D[i][j][q]%MOD*D[i][p][q]%MOD*D[j][p][q]%MOD;
			ans%=MOD;
		}

		for(i=0; i<MAXS; i++) for(j=i+1; j<MAXS; j++) for(p=j, q=p+1; q<MAXS; q++)
		{
			ans+=12*D[i][j][p]%MOD*D[i][j][q]%MOD*D[i][p][q]%MOD*D[j][p][q]%MOD;
			ans%=MOD;
		}

		for(i=0; i<MAXS; i++) for(j=i+1; j<MAXS; j++) for(p=j+1; p<MAXS; p++)
		{
			q=p;
			ans+=12*D[i][j][p]%MOD*D[i][j][q]%MOD*D[i][p][q]%MOD*D[j][p][q]%MOD;
			ans%=MOD;
		}

		for(i=0; i<MAXS; i++) for(j=i, p=j+1; p<MAXS; p++)
		{
			q=p;
			ans+=6*D[i][j][p]%MOD*D[i][j][q]%MOD*D[i][p][q]%MOD*D[j][p][q]%MOD;
			ans%=MOD;
		}

		for(i=0; i<MAXS; i++) for(j=i+1; j<MAXS; j++)
		{
			p=q=j;
			ans+=4*D[i][j][p]%MOD*D[i][j][q]%MOD*D[i][p][q]%MOD*D[j][p][q]%MOD;
			ans%=MOD;
		}

		for(i=0; i<MAXS; i++) for(j=p=i, q=p+1; q<MAXS; q++)
		{
			ans+=4*D[i][j][p]%MOD*D[i][j][q]%MOD*D[i][p][q]%MOD*D[j][p][q]%MOD;
			ans%=MOD;
		}

		for(i=0; i<MAXS; i++)
		{
			j=p=q=i;
			ans+=D[i][j][p]%MOD*D[i][j][q]%MOD*D[i][p][q]%MOD*D[j][p][q]%MOD;
			ans%=MOD;
		}
	}
	cout<<ans;
}

Compilation message

cubeword.cpp: In function 'int main()':
cubeword.cpp:42:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(i=0; i<S.size(); i++) T[S[i].size()].push_back(S[i]);
           ~^~~~~~~~~
cubeword.cpp:50:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(i=0; i<V.size(); i++) cnt[convert(V[i][0])][convert(V[i][V[i].size()-1])]++;
            ~^~~~~~~~~
cubeword.cpp: In function 'int convert(char)':
cubeword.cpp:21:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 357 ms 18384 KB Output is correct
2 Correct 375 ms 17204 KB Output is correct
3 Correct 369 ms 18768 KB Output is correct
4 Correct 361 ms 19024 KB Output is correct
5 Correct 360 ms 18640 KB Output is correct
6 Correct 365 ms 18000 KB Output is correct
7 Correct 356 ms 18384 KB Output is correct
8 Correct 357 ms 18256 KB Output is correct
9 Correct 371 ms 19024 KB Output is correct
10 Correct 362 ms 18384 KB Output is correct
11 Correct 363 ms 18000 KB Output is correct
12 Correct 356 ms 17976 KB Output is correct
13 Correct 366 ms 17756 KB Output is correct
14 Correct 354 ms 18768 KB Output is correct
15 Correct 356 ms 18128 KB Output is correct
16 Correct 358 ms 18640 KB Output is correct
17 Correct 360 ms 18128 KB Output is correct
18 Correct 370 ms 18000 KB Output is correct
19 Correct 356 ms 17488 KB Output is correct
20 Correct 360 ms 18768 KB Output is correct
21 Correct 365 ms 17876 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 357 ms 18384 KB Output is correct
2 Correct 375 ms 17204 KB Output is correct
3 Correct 369 ms 18768 KB Output is correct
4 Correct 361 ms 19024 KB Output is correct
5 Correct 360 ms 18640 KB Output is correct
6 Correct 365 ms 18000 KB Output is correct
7 Correct 356 ms 18384 KB Output is correct
8 Correct 357 ms 18256 KB Output is correct
9 Correct 371 ms 19024 KB Output is correct
10 Correct 362 ms 18384 KB Output is correct
11 Correct 363 ms 18000 KB Output is correct
12 Correct 356 ms 17976 KB Output is correct
13 Correct 366 ms 17756 KB Output is correct
14 Correct 354 ms 18768 KB Output is correct
15 Correct 356 ms 18128 KB Output is correct
16 Correct 358 ms 18640 KB Output is correct
17 Correct 360 ms 18128 KB Output is correct
18 Correct 370 ms 18000 KB Output is correct
19 Correct 356 ms 17488 KB Output is correct
20 Correct 360 ms 18768 KB Output is correct
21 Correct 365 ms 17876 KB Output is correct
22 Correct 357 ms 15568 KB Output is correct
23 Correct 359 ms 16464 KB Output is correct
24 Correct 353 ms 16464 KB Output is correct
25 Correct 364 ms 17104 KB Output is correct
26 Correct 355 ms 16720 KB Output is correct
27 Correct 350 ms 17232 KB Output is correct
28 Correct 347 ms 17360 KB Output is correct
29 Correct 374 ms 17616 KB Output is correct
30 Correct 350 ms 16824 KB Output is correct
31 Correct 359 ms 16652 KB Output is correct
32 Correct 347 ms 15696 KB Output is correct
33 Correct 368 ms 16592 KB Output is correct
34 Correct 355 ms 16868 KB Output is correct
35 Correct 354 ms 16720 KB Output is correct
36 Correct 353 ms 15544 KB Output is correct
37 Correct 348 ms 16500 KB Output is correct
38 Correct 356 ms 16720 KB Output is correct
39 Correct 346 ms 16848 KB Output is correct
40 Correct 376 ms 15952 KB Output is correct
41 Correct 362 ms 16592 KB Output is correct
42 Correct 353 ms 16596 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 357 ms 18384 KB Output is correct
2 Correct 375 ms 17204 KB Output is correct
3 Correct 369 ms 18768 KB Output is correct
4 Correct 361 ms 19024 KB Output is correct
5 Correct 360 ms 18640 KB Output is correct
6 Correct 365 ms 18000 KB Output is correct
7 Correct 356 ms 18384 KB Output is correct
8 Correct 357 ms 18256 KB Output is correct
9 Correct 371 ms 19024 KB Output is correct
10 Correct 362 ms 18384 KB Output is correct
11 Correct 363 ms 18000 KB Output is correct
12 Correct 356 ms 17976 KB Output is correct
13 Correct 366 ms 17756 KB Output is correct
14 Correct 354 ms 18768 KB Output is correct
15 Correct 356 ms 18128 KB Output is correct
16 Correct 358 ms 18640 KB Output is correct
17 Correct 360 ms 18128 KB Output is correct
18 Correct 370 ms 18000 KB Output is correct
19 Correct 356 ms 17488 KB Output is correct
20 Correct 360 ms 18768 KB Output is correct
21 Correct 365 ms 17876 KB Output is correct
22 Correct 357 ms 15568 KB Output is correct
23 Correct 359 ms 16464 KB Output is correct
24 Correct 353 ms 16464 KB Output is correct
25 Correct 364 ms 17104 KB Output is correct
26 Correct 355 ms 16720 KB Output is correct
27 Correct 350 ms 17232 KB Output is correct
28 Correct 347 ms 17360 KB Output is correct
29 Correct 374 ms 17616 KB Output is correct
30 Correct 350 ms 16824 KB Output is correct
31 Correct 359 ms 16652 KB Output is correct
32 Correct 347 ms 15696 KB Output is correct
33 Correct 368 ms 16592 KB Output is correct
34 Correct 355 ms 16868 KB Output is correct
35 Correct 354 ms 16720 KB Output is correct
36 Correct 353 ms 15544 KB Output is correct
37 Correct 348 ms 16500 KB Output is correct
38 Correct 356 ms 16720 KB Output is correct
39 Correct 346 ms 16848 KB Output is correct
40 Correct 376 ms 15952 KB Output is correct
41 Correct 362 ms 16592 KB Output is correct
42 Correct 353 ms 16596 KB Output is correct
43 Correct 354 ms 17488 KB Output is correct
44 Correct 353 ms 18000 KB Output is correct
45 Correct 359 ms 18388 KB Output is correct
46 Correct 349 ms 17616 KB Output is correct
47 Correct 352 ms 18352 KB Output is correct
48 Correct 357 ms 18384 KB Output is correct
49 Correct 348 ms 17744 KB Output is correct
50 Correct 355 ms 17528 KB Output is correct
51 Correct 349 ms 17336 KB Output is correct
52 Correct 348 ms 17616 KB Output is correct
53 Correct 347 ms 17824 KB Output is correct
54 Correct 361 ms 17872 KB Output is correct
55 Correct 352 ms 17104 KB Output is correct
56 Correct 375 ms 18000 KB Output is correct
57 Correct 353 ms 17744 KB Output is correct
58 Correct 359 ms 17872 KB Output is correct
59 Correct 353 ms 16872 KB Output is correct
60 Correct 366 ms 18384 KB Output is correct
61 Correct 356 ms 16976 KB Output is correct
62 Correct 354 ms 17744 KB Output is correct
63 Correct 355 ms 17744 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 357 ms 18384 KB Output is correct
2 Correct 375 ms 17204 KB Output is correct
3 Correct 369 ms 18768 KB Output is correct
4 Correct 361 ms 19024 KB Output is correct
5 Correct 360 ms 18640 KB Output is correct
6 Correct 365 ms 18000 KB Output is correct
7 Correct 356 ms 18384 KB Output is correct
8 Correct 357 ms 18256 KB Output is correct
9 Correct 371 ms 19024 KB Output is correct
10 Correct 362 ms 18384 KB Output is correct
11 Correct 363 ms 18000 KB Output is correct
12 Correct 356 ms 17976 KB Output is correct
13 Correct 366 ms 17756 KB Output is correct
14 Correct 354 ms 18768 KB Output is correct
15 Correct 356 ms 18128 KB Output is correct
16 Correct 358 ms 18640 KB Output is correct
17 Correct 360 ms 18128 KB Output is correct
18 Correct 370 ms 18000 KB Output is correct
19 Correct 356 ms 17488 KB Output is correct
20 Correct 360 ms 18768 KB Output is correct
21 Correct 365 ms 17876 KB Output is correct
22 Correct 357 ms 15568 KB Output is correct
23 Correct 359 ms 16464 KB Output is correct
24 Correct 353 ms 16464 KB Output is correct
25 Correct 364 ms 17104 KB Output is correct
26 Correct 355 ms 16720 KB Output is correct
27 Correct 350 ms 17232 KB Output is correct
28 Correct 347 ms 17360 KB Output is correct
29 Correct 374 ms 17616 KB Output is correct
30 Correct 350 ms 16824 KB Output is correct
31 Correct 359 ms 16652 KB Output is correct
32 Correct 347 ms 15696 KB Output is correct
33 Correct 368 ms 16592 KB Output is correct
34 Correct 355 ms 16868 KB Output is correct
35 Correct 354 ms 16720 KB Output is correct
36 Correct 353 ms 15544 KB Output is correct
37 Correct 348 ms 16500 KB Output is correct
38 Correct 356 ms 16720 KB Output is correct
39 Correct 346 ms 16848 KB Output is correct
40 Correct 376 ms 15952 KB Output is correct
41 Correct 362 ms 16592 KB Output is correct
42 Correct 353 ms 16596 KB Output is correct
43 Correct 354 ms 17488 KB Output is correct
44 Correct 353 ms 18000 KB Output is correct
45 Correct 359 ms 18388 KB Output is correct
46 Correct 349 ms 17616 KB Output is correct
47 Correct 352 ms 18352 KB Output is correct
48 Correct 357 ms 18384 KB Output is correct
49 Correct 348 ms 17744 KB Output is correct
50 Correct 355 ms 17528 KB Output is correct
51 Correct 349 ms 17336 KB Output is correct
52 Correct 348 ms 17616 KB Output is correct
53 Correct 347 ms 17824 KB Output is correct
54 Correct 361 ms 17872 KB Output is correct
55 Correct 352 ms 17104 KB Output is correct
56 Correct 375 ms 18000 KB Output is correct
57 Correct 353 ms 17744 KB Output is correct
58 Correct 359 ms 17872 KB Output is correct
59 Correct 353 ms 16872 KB Output is correct
60 Correct 366 ms 18384 KB Output is correct
61 Correct 356 ms 16976 KB Output is correct
62 Correct 354 ms 17744 KB Output is correct
63 Correct 355 ms 17744 KB Output is correct
64 Correct 372 ms 17732 KB Output is correct
65 Correct 357 ms 17872 KB Output is correct
66 Correct 354 ms 17884 KB Output is correct
67 Correct 363 ms 18000 KB Output is correct
68 Correct 358 ms 17864 KB Output is correct
69 Correct 351 ms 17588 KB Output is correct
70 Correct 352 ms 17744 KB Output is correct
71 Correct 355 ms 17868 KB Output is correct
72 Correct 356 ms 17616 KB Output is correct
73 Correct 351 ms 17616 KB Output is correct
74 Correct 378 ms 17108 KB Output is correct
75 Correct 348 ms 17744 KB Output is correct
76 Correct 351 ms 17616 KB Output is correct
77 Correct 346 ms 17744 KB Output is correct
78 Correct 356 ms 17964 KB Output is correct
79 Correct 358 ms 17744 KB Output is correct
80 Correct 355 ms 17616 KB Output is correct
81 Correct 357 ms 18256 KB Output is correct
82 Correct 365 ms 17232 KB Output is correct
83 Correct 358 ms 18000 KB Output is correct
84 Correct 359 ms 17744 KB Output is correct