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Submission #198643

# Submission time Handle Problem Language Result Execution time Memory
198643 2020-01-27T06:06:55 Z arnold518 Cubeword (CEOI19_cubeword) C++14
100 / 100
 349 ms 19156 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 330 ms 18516 KB Output is correct
2 Correct 337 ms 17336 KB Output is correct
3 Correct 330 ms 18568 KB Output is correct
4 Correct 326 ms 19156 KB Output is correct
5 Correct 315 ms 18520 KB Output is correct
6 Correct 327 ms 18260 KB Output is correct
7 Correct 310 ms 18260 KB Output is correct
8 Correct 326 ms 18132 KB Output is correct
9 Correct 332 ms 19156 KB Output is correct
10 Correct 311 ms 18516 KB Output is correct
11 Correct 326 ms 18132 KB Output is correct
12 Correct 310 ms 17876 KB Output is correct
13 Correct 308 ms 17752 KB Output is correct
14 Correct 320 ms 18772 KB Output is correct
15 Correct 327 ms 18132 KB Output is correct
16 Correct 329 ms 18792 KB Output is correct
17 Correct 317 ms 18108 KB Output is correct
18 Correct 333 ms 18108 KB Output is correct
19 Correct 324 ms 17492 KB Output is correct
20 Correct 326 ms 18880 KB Output is correct
21 Correct 314 ms 17852 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 330 ms 18516 KB Output is correct
2 Correct 337 ms 17336 KB Output is correct
3 Correct 330 ms 18568 KB Output is correct
4 Correct 326 ms 19156 KB Output is correct
5 Correct 315 ms 18520 KB Output is correct
6 Correct 327 ms 18260 KB Output is correct
7 Correct 310 ms 18260 KB Output is correct
8 Correct 326 ms 18132 KB Output is correct
9 Correct 332 ms 19156 KB Output is correct
10 Correct 311 ms 18516 KB Output is correct
11 Correct 326 ms 18132 KB Output is correct
12 Correct 310 ms 17876 KB Output is correct
13 Correct 308 ms 17752 KB Output is correct
14 Correct 320 ms 18772 KB Output is correct
15 Correct 327 ms 18132 KB Output is correct
16 Correct 329 ms 18792 KB Output is correct
17 Correct 317 ms 18108 KB Output is correct
18 Correct 333 ms 18108 KB Output is correct
19 Correct 324 ms 17492 KB Output is correct
20 Correct 326 ms 18880 KB Output is correct
21 Correct 314 ms 17852 KB Output is correct
22 Correct 335 ms 15572 KB Output is correct
23 Correct 309 ms 16592 KB Output is correct
24 Correct 326 ms 16596 KB Output is correct
25 Correct 331 ms 17076 KB Output is correct
26 Correct 322 ms 16904 KB Output is correct
27 Correct 318 ms 17260 KB Output is correct
28 Correct 312 ms 17624 KB Output is correct
29 Correct 331 ms 17664 KB Output is correct
30 Correct 320 ms 16980 KB Output is correct
31 Correct 330 ms 16932 KB Output is correct
32 Correct 316 ms 15700 KB Output is correct
33 Correct 323 ms 16724 KB Output is correct
34 Correct 315 ms 16852 KB Output is correct
35 Correct 314 ms 16852 KB Output is correct
36 Correct 319 ms 15572 KB Output is correct
37 Correct 324 ms 16596 KB Output is correct
38 Correct 349 ms 16852 KB Output is correct
39 Correct 316 ms 16908 KB Output is correct
40 Correct 310 ms 15956 KB Output is correct
41 Correct 315 ms 16468 KB Output is correct
42 Correct 318 ms 16512 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 330 ms 18516 KB Output is correct
2 Correct 337 ms 17336 KB Output is correct
3 Correct 330 ms 18568 KB Output is correct
4 Correct 326 ms 19156 KB Output is correct
5 Correct 315 ms 18520 KB Output is correct
6 Correct 327 ms 18260 KB Output is correct
7 Correct 310 ms 18260 KB Output is correct
8 Correct 326 ms 18132 KB Output is correct
9 Correct 332 ms 19156 KB Output is correct
10 Correct 311 ms 18516 KB Output is correct
11 Correct 326 ms 18132 KB Output is correct
12 Correct 310 ms 17876 KB Output is correct
13 Correct 308 ms 17752 KB Output is correct
14 Correct 320 ms 18772 KB Output is correct
15 Correct 327 ms 18132 KB Output is correct
16 Correct 329 ms 18792 KB Output is correct
17 Correct 317 ms 18108 KB Output is correct
18 Correct 333 ms 18108 KB Output is correct
19 Correct 324 ms 17492 KB Output is correct
20 Correct 326 ms 18880 KB Output is correct
21 Correct 314 ms 17852 KB Output is correct
22 Correct 335 ms 15572 KB Output is correct
23 Correct 309 ms 16592 KB Output is correct
24 Correct 326 ms 16596 KB Output is correct
25 Correct 331 ms 17076 KB Output is correct
26 Correct 322 ms 16904 KB Output is correct
27 Correct 318 ms 17260 KB Output is correct
28 Correct 312 ms 17624 KB Output is correct
29 Correct 331 ms 17664 KB Output is correct
30 Correct 320 ms 16980 KB Output is correct
31 Correct 330 ms 16932 KB Output is correct
32 Correct 316 ms 15700 KB Output is correct
33 Correct 323 ms 16724 KB Output is correct
34 Correct 315 ms 16852 KB Output is correct
35 Correct 314 ms 16852 KB Output is correct
36 Correct 319 ms 15572 KB Output is correct
37 Correct 324 ms 16596 KB Output is correct
38 Correct 349 ms 16852 KB Output is correct
39 Correct 316 ms 16908 KB Output is correct
40 Correct 310 ms 15956 KB Output is correct
41 Correct 315 ms 16468 KB Output is correct
42 Correct 318 ms 16512 KB Output is correct
43 Correct 319 ms 17492 KB Output is correct
44 Correct 316 ms 17292 KB Output is correct
45 Correct 317 ms 17620 KB Output is correct
46 Correct 326 ms 16912 KB Output is correct
47 Correct 313 ms 17364 KB Output is correct
48 Correct 326 ms 17492 KB Output is correct
49 Correct 309 ms 16980 KB Output is correct
50 Correct 316 ms 16724 KB Output is correct
51 Correct 314 ms 16600 KB Output is correct
52 Correct 323 ms 16848 KB Output is correct
53 Correct 312 ms 17084 KB Output is correct
54 Correct 318 ms 17108 KB Output is correct
55 Correct 319 ms 16340 KB Output is correct
56 Correct 304 ms 17108 KB Output is correct
57 Correct 328 ms 17236 KB Output is correct
58 Correct 331 ms 17040 KB Output is correct
59 Correct 318 ms 16212 KB Output is correct
60 Correct 320 ms 17620 KB Output is correct
61 Correct 318 ms 16216 KB Output is correct
62 Correct 322 ms 17108 KB Output is correct
63 Correct 314 ms 16848 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 330 ms 18516 KB Output is correct
2 Correct 337 ms 17336 KB Output is correct
3 Correct 330 ms 18568 KB Output is correct
4 Correct 326 ms 19156 KB Output is correct
5 Correct 315 ms 18520 KB Output is correct
6 Correct 327 ms 18260 KB Output is correct
7 Correct 310 ms 18260 KB Output is correct
8 Correct 326 ms 18132 KB Output is correct
9 Correct 332 ms 19156 KB Output is correct
10 Correct 311 ms 18516 KB Output is correct
11 Correct 326 ms 18132 KB Output is correct
12 Correct 310 ms 17876 KB Output is correct
13 Correct 308 ms 17752 KB Output is correct
14 Correct 320 ms 18772 KB Output is correct
15 Correct 327 ms 18132 KB Output is correct
16 Correct 329 ms 18792 KB Output is correct
17 Correct 317 ms 18108 KB Output is correct
18 Correct 333 ms 18108 KB Output is correct
19 Correct 324 ms 17492 KB Output is correct
20 Correct 326 ms 18880 KB Output is correct
21 Correct 314 ms 17852 KB Output is correct
22 Correct 335 ms 15572 KB Output is correct
23 Correct 309 ms 16592 KB Output is correct
24 Correct 326 ms 16596 KB Output is correct
25 Correct 331 ms 17076 KB Output is correct
26 Correct 322 ms 16904 KB Output is correct
27 Correct 318 ms 17260 KB Output is correct
28 Correct 312 ms 17624 KB Output is correct
29 Correct 331 ms 17664 KB Output is correct
30 Correct 320 ms 16980 KB Output is correct
31 Correct 330 ms 16932 KB Output is correct
32 Correct 316 ms 15700 KB Output is correct
33 Correct 323 ms 16724 KB Output is correct
34 Correct 315 ms 16852 KB Output is correct
35 Correct 314 ms 16852 KB Output is correct
36 Correct 319 ms 15572 KB Output is correct
37 Correct 324 ms 16596 KB Output is correct
38 Correct 349 ms 16852 KB Output is correct
39 Correct 316 ms 16908 KB Output is correct
40 Correct 310 ms 15956 KB Output is correct
41 Correct 315 ms 16468 KB Output is correct
42 Correct 318 ms 16512 KB Output is correct
43 Correct 319 ms 17492 KB Output is correct
44 Correct 316 ms 17292 KB Output is correct
45 Correct 317 ms 17620 KB Output is correct
46 Correct 326 ms 16912 KB Output is correct
47 Correct 313 ms 17364 KB Output is correct
48 Correct 326 ms 17492 KB Output is correct
49 Correct 309 ms 16980 KB Output is correct
50 Correct 316 ms 16724 KB Output is correct
51 Correct 314 ms 16600 KB Output is correct
52 Correct 323 ms 16848 KB Output is correct
53 Correct 312 ms 17084 KB Output is correct
54 Correct 318 ms 17108 KB Output is correct
55 Correct 319 ms 16340 KB Output is correct
56 Correct 304 ms 17108 KB Output is correct
57 Correct 328 ms 17236 KB Output is correct
58 Correct 331 ms 17040 KB Output is correct
59 Correct 318 ms 16212 KB Output is correct
60 Correct 320 ms 17620 KB Output is correct
61 Correct 318 ms 16216 KB Output is correct
62 Correct 322 ms 17108 KB Output is correct
63 Correct 314 ms 16848 KB Output is correct
64 Correct 314 ms 17112 KB Output is correct
65 Correct 314 ms 17344 KB Output is correct
66 Correct 317 ms 17108 KB Output is correct
67 Correct 307 ms 17368 KB Output is correct
68 Correct 320 ms 17112 KB Output is correct
69 Correct 313 ms 16724 KB Output is correct
70 Correct 315 ms 16976 KB Output is correct
71 Correct 314 ms 17112 KB Output is correct
72 Correct 308 ms 16980 KB Output is correct
73 Correct 316 ms 17108 KB Output is correct
74 Correct 323 ms 16468 KB Output is correct
75 Correct 320 ms 17108 KB Output is correct
76 Correct 318 ms 16852 KB Output is correct
77 Correct 318 ms 16980 KB Output is correct
78 Correct 316 ms 17360 KB Output is correct
79 Correct 322 ms 17164 KB Output is correct
80 Correct 315 ms 16984 KB Output is correct
81 Correct 315 ms 17620 KB Output is correct
82 Correct 308 ms 16468 KB Output is correct
83 Correct 316 ms 17236 KB Output is correct
84 Correct 324 ms 16852 KB Output is correct