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Submission #466717

# Submission time Handle Problem Language Result Execution time Memory
466717 2021-08-20T13:52:23 Z ivan_tudor Cubeword (CEOI19_cubeword) C++14
100 / 100
 289 ms 8816 KB 
#include<bits/stdc++.h>
using namespace std;
vector<string> v[11];
const int MOD = 998244353;
void add(int &x, long long y){
  y%=MOD;
  x+=y;
  if(x>=MOD)
    x-=MOD;
  if(x<0)
    x+=MOD;
}
int codes(char c){
  if(c >= 'a' && c <= 'z')
    return c - 'a';
  else if( c >= 'A' && c<= 'Z')
    return c - 'A' + 'z' - 'a' + 1;
  else if(c >= '0' && c <= '9'){
    return c - '0' + 'Z' - 'A' + 1 + 'z' - 'a' + 1;
  }
  assert(0);
  return -1;
}
const int SIGMA = 'Z' - 'A' + 1 + 'z' - 'a' + 1 + '9' - '0' + 1 + 1;
int nw[SIGMA][SIGMA];
int nr[SIGMA][SIGMA][SIGMA];
int coef(int l1, int l2, int l3, int l4){
  if(l1 == l4)
    return 1;
  if(l1 == l3 || l2 == l4)
    return 4;
  if(l1 == l2 && l3 == l4)
    return 6;
  if(l1 == l2 || l2 == l3 || l3 == l4)
    return 12;
  return 24;
}
int main()
{
  //freopen(".in","r",stdin);
  ios::sync_with_stdio(false);
  cin.tie(0),cout.tie(0);
  int n;
  cin>>n;
  for(int i = 1; i <=n; i++){
    string s;
    cin>>s;
    int len = s.size();
    v[len].push_back(s);
    reverse(s.begin(), s.end());
    v[len].push_back(s);
  }
  int ans = 0;
  for(int len = 3; len<=10; len++){
    // doar ce e unic
    sort(v[len].begin(), v[len].end());
    auto last = unique(v[len].begin(), v[len].end());
    v[len].erase(last, v[len].end());
    for(string x:v[len]){
      nw[codes(x[0])][codes(x[x.size() - 1])]++;
    }
    for(int l1 = 0; l1 < SIGMA; l1++){
      for(int l2 = l1; l2 < SIGMA; l2++){
        for(int l3 = l2; l3 < SIGMA; l3++){
          for(int l4 = 0; l4 < SIGMA; l4++){
            long long ad = 1LL * nw[l4][l1] * nw[l4][l2] % MOD * nw[l4][l3] % MOD;
            if(add)
              add(nr[l1][l2][l3], ad);
          }
        }
      }
    }
    for(int l1 = 0; l1 < SIGMA; l1++){
      for(int l2 = l1; l2 < SIGMA; l2++){
        for(int l3 = l2; l3 < SIGMA; l3++){
          for(int l4 = l3; l4 < SIGMA; l4++){
            long long nwc = 1LL *nr[l1][l2][l3] * nr[l1][l2][l4] % MOD * nr[l1][l3][l4] % MOD * nr[l2][l3][l4] % MOD;
            if(nwc)
              add(ans, 1LL *nwc * coef(l1, l2, l3, l4));
          }
        }
      }
    }
    memset(nr, 0, sizeof(nr));
    memset(nw, 0, sizeof(nw));
  }
  cout<<ans;
  return 0;
}

Compilation message

cubeword.cpp: In function 'int main()':
cubeword.cpp:67:16: warning: the address of 'void add(int&, long long int)' will never be NULL [-Waddress]
   67 |             if(add)
      |                ^~~

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 223 ms 8168 KB Output is correct
2 Correct 226 ms 8212 KB Output is correct
3 Correct 216 ms 8128 KB Output is correct
4 Correct 220 ms 8232 KB Output is correct
5 Correct 226 ms 8300 KB Output is correct
6 Correct 227 ms 8380 KB Output is correct
7 Correct 220 ms 8296 KB Output is correct
8 Correct 223 ms 7836 KB Output is correct
9 Correct 219 ms 7880 KB Output is correct
10 Correct 220 ms 8080 KB Output is correct
11 Correct 220 ms 8096 KB Output is correct
12 Correct 217 ms 7972 KB Output is correct
13 Correct 216 ms 7980 KB Output is correct
14 Correct 223 ms 7936 KB Output is correct
15 Correct 218 ms 7916 KB Output is correct
16 Correct 222 ms 7916 KB Output is correct
17 Correct 220 ms 8020 KB Output is correct
18 Correct 226 ms 7932 KB Output is correct
19 Correct 218 ms 7892 KB Output is correct
20 Correct 223 ms 7944 KB Output is correct
21 Correct 237 ms 7968 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 223 ms 8168 KB Output is correct
2 Correct 226 ms 8212 KB Output is correct
3 Correct 216 ms 8128 KB Output is correct
4 Correct 220 ms 8232 KB Output is correct
5 Correct 226 ms 8300 KB Output is correct
6 Correct 227 ms 8380 KB Output is correct
7 Correct 220 ms 8296 KB Output is correct
8 Correct 223 ms 7836 KB Output is correct
9 Correct 219 ms 7880 KB Output is correct
10 Correct 220 ms 8080 KB Output is correct
11 Correct 220 ms 8096 KB Output is correct
12 Correct 217 ms 7972 KB Output is correct
13 Correct 216 ms 7980 KB Output is correct
14 Correct 223 ms 7936 KB Output is correct
15 Correct 218 ms 7916 KB Output is correct
16 Correct 222 ms 7916 KB Output is correct
17 Correct 220 ms 8020 KB Output is correct
18 Correct 226 ms 7932 KB Output is correct
19 Correct 218 ms 7892 KB Output is correct
20 Correct 223 ms 7944 KB Output is correct
21 Correct 237 ms 7968 KB Output is correct
22 Correct 219 ms 7676 KB Output is correct
23 Correct 220 ms 7628 KB Output is correct
24 Correct 212 ms 7884 KB Output is correct
25 Correct 222 ms 7876 KB Output is correct
26 Correct 224 ms 7684 KB Output is correct
27 Correct 217 ms 7952 KB Output is correct
28 Correct 220 ms 7752 KB Output is correct
29 Correct 215 ms 7796 KB Output is correct
30 Correct 251 ms 7704 KB Output is correct
31 Correct 219 ms 7760 KB Output is correct
32 Correct 216 ms 7620 KB Output is correct
33 Correct 220 ms 7600 KB Output is correct
34 Correct 217 ms 7904 KB Output is correct
35 Correct 219 ms 8000 KB Output is correct
36 Correct 218 ms 7816 KB Output is correct
37 Correct 215 ms 7764 KB Output is correct
38 Correct 219 ms 7864 KB Output is correct
39 Correct 218 ms 7836 KB Output is correct
40 Correct 220 ms 7896 KB Output is correct
41 Correct 222 ms 7892 KB Output is correct
42 Correct 217 ms 7716 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 223 ms 8168 KB Output is correct
2 Correct 226 ms 8212 KB Output is correct
3 Correct 216 ms 8128 KB Output is correct
4 Correct 220 ms 8232 KB Output is correct
5 Correct 226 ms 8300 KB Output is correct
6 Correct 227 ms 8380 KB Output is correct
7 Correct 220 ms 8296 KB Output is correct
8 Correct 223 ms 7836 KB Output is correct
9 Correct 219 ms 7880 KB Output is correct
10 Correct 220 ms 8080 KB Output is correct
11 Correct 220 ms 8096 KB Output is correct
12 Correct 217 ms 7972 KB Output is correct
13 Correct 216 ms 7980 KB Output is correct
14 Correct 223 ms 7936 KB Output is correct
15 Correct 218 ms 7916 KB Output is correct
16 Correct 222 ms 7916 KB Output is correct
17 Correct 220 ms 8020 KB Output is correct
18 Correct 226 ms 7932 KB Output is correct
19 Correct 218 ms 7892 KB Output is correct
20 Correct 223 ms 7944 KB Output is correct
21 Correct 237 ms 7968 KB Output is correct
22 Correct 219 ms 7676 KB Output is correct
23 Correct 220 ms 7628 KB Output is correct
24 Correct 212 ms 7884 KB Output is correct
25 Correct 222 ms 7876 KB Output is correct
26 Correct 224 ms 7684 KB Output is correct
27 Correct 217 ms 7952 KB Output is correct
28 Correct 220 ms 7752 KB Output is correct
29 Correct 215 ms 7796 KB Output is correct
30 Correct 251 ms 7704 KB Output is correct
31 Correct 219 ms 7760 KB Output is correct
32 Correct 216 ms 7620 KB Output is correct
33 Correct 220 ms 7600 KB Output is correct
34 Correct 217 ms 7904 KB Output is correct
35 Correct 219 ms 8000 KB Output is correct
36 Correct 218 ms 7816 KB Output is correct
37 Correct 215 ms 7764 KB Output is correct
38 Correct 219 ms 7864 KB Output is correct
39 Correct 218 ms 7836 KB Output is correct
40 Correct 220 ms 7896 KB Output is correct
41 Correct 222 ms 7892 KB Output is correct
42 Correct 217 ms 7716 KB Output is correct
43 Correct 221 ms 7648 KB Output is correct
44 Correct 236 ms 7792 KB Output is correct
45 Correct 225 ms 7712 KB Output is correct
46 Correct 223 ms 7672 KB Output is correct
47 Correct 229 ms 7736 KB Output is correct
48 Correct 223 ms 8028 KB Output is correct
49 Correct 223 ms 8096 KB Output is correct
50 Correct 222 ms 8116 KB Output is correct
51 Correct 224 ms 7984 KB Output is correct
52 Correct 224 ms 7856 KB Output is correct
53 Correct 222 ms 7664 KB Output is correct
54 Correct 224 ms 7992 KB Output is correct
55 Correct 222 ms 8064 KB Output is correct
56 Correct 224 ms 7684 KB Output is correct
57 Correct 222 ms 7932 KB Output is correct
58 Correct 221 ms 8104 KB Output is correct
59 Correct 218 ms 7988 KB Output is correct
60 Correct 224 ms 8024 KB Output is correct
61 Correct 225 ms 7740 KB Output is correct
62 Correct 219 ms 7988 KB Output is correct
63 Correct 222 ms 7968 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 223 ms 8168 KB Output is correct
2 Correct 226 ms 8212 KB Output is correct
3 Correct 216 ms 8128 KB Output is correct
4 Correct 220 ms 8232 KB Output is correct
5 Correct 226 ms 8300 KB Output is correct
6 Correct 227 ms 8380 KB Output is correct
7 Correct 220 ms 8296 KB Output is correct
8 Correct 223 ms 7836 KB Output is correct
9 Correct 219 ms 7880 KB Output is correct
10 Correct 220 ms 8080 KB Output is correct
11 Correct 220 ms 8096 KB Output is correct
12 Correct 217 ms 7972 KB Output is correct
13 Correct 216 ms 7980 KB Output is correct
14 Correct 223 ms 7936 KB Output is correct
15 Correct 218 ms 7916 KB Output is correct
16 Correct 222 ms 7916 KB Output is correct
17 Correct 220 ms 8020 KB Output is correct
18 Correct 226 ms 7932 KB Output is correct
19 Correct 218 ms 7892 KB Output is correct
20 Correct 223 ms 7944 KB Output is correct
21 Correct 237 ms 7968 KB Output is correct
22 Correct 219 ms 7676 KB Output is correct
23 Correct 220 ms 7628 KB Output is correct
24 Correct 212 ms 7884 KB Output is correct
25 Correct 222 ms 7876 KB Output is correct
26 Correct 224 ms 7684 KB Output is correct
27 Correct 217 ms 7952 KB Output is correct
28 Correct 220 ms 7752 KB Output is correct
29 Correct 215 ms 7796 KB Output is correct
30 Correct 251 ms 7704 KB Output is correct
31 Correct 219 ms 7760 KB Output is correct
32 Correct 216 ms 7620 KB Output is correct
33 Correct 220 ms 7600 KB Output is correct
34 Correct 217 ms 7904 KB Output is correct
35 Correct 219 ms 8000 KB Output is correct
36 Correct 218 ms 7816 KB Output is correct
37 Correct 215 ms 7764 KB Output is correct
38 Correct 219 ms 7864 KB Output is correct
39 Correct 218 ms 7836 KB Output is correct
40 Correct 220 ms 7896 KB Output is correct
41 Correct 222 ms 7892 KB Output is correct
42 Correct 217 ms 7716 KB Output is correct
43 Correct 221 ms 7648 KB Output is correct
44 Correct 236 ms 7792 KB Output is correct
45 Correct 225 ms 7712 KB Output is correct
46 Correct 223 ms 7672 KB Output is correct
47 Correct 229 ms 7736 KB Output is correct
48 Correct 223 ms 8028 KB Output is correct
49 Correct 223 ms 8096 KB Output is correct
50 Correct 222 ms 8116 KB Output is correct
51 Correct 224 ms 7984 KB Output is correct
52 Correct 224 ms 7856 KB Output is correct
53 Correct 222 ms 7664 KB Output is correct
54 Correct 224 ms 7992 KB Output is correct
55 Correct 222 ms 8064 KB Output is correct
56 Correct 224 ms 7684 KB Output is correct
57 Correct 222 ms 7932 KB Output is correct
58 Correct 221 ms 8104 KB Output is correct
59 Correct 218 ms 7988 KB Output is correct
60 Correct 224 ms 8024 KB Output is correct
61 Correct 225 ms 7740 KB Output is correct
62 Correct 219 ms 7988 KB Output is correct
63 Correct 222 ms 7968 KB Output is correct
64 Correct 284 ms 8016 KB Output is correct
65 Correct 283 ms 8712 KB Output is correct
66 Correct 286 ms 8396 KB Output is correct
67 Correct 281 ms 8436 KB Output is correct
68 Correct 283 ms 8456 KB Output is correct
69 Correct 285 ms 8596 KB Output is correct
70 Correct 286 ms 8636 KB Output is correct
71 Correct 287 ms 8376 KB Output is correct
72 Correct 281 ms 8672 KB Output is correct
73 Correct 282 ms 8512 KB Output is correct
74 Correct 287 ms 8704 KB Output is correct
75 Correct 282 ms 8696 KB Output is correct
76 Correct 282 ms 8548 KB Output is correct
77 Correct 281 ms 8456 KB Output is correct
78 Correct 289 ms 8356 KB Output is correct
79 Correct 286 ms 8436 KB Output is correct
80 Correct 284 ms 8724 KB Output is correct
81 Correct 285 ms 8772 KB Output is correct
82 Correct 283 ms 8816 KB Output is correct
83 Correct 284 ms 8600 KB Output is correct
84 Correct 289 ms 8812 KB Output is correct