oj.uz

Submission #373214

# Submission time Handle Problem Language Result Execution time Memory
373214 2021-03-03T18:47:28 Z ACmachine Cubeword (CEOI19_cubeword) C++17
84 / 100
 896 ms 19124 KB 
#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,avx,avx2")
template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename T, typename U> using ordered_map = tree<T, U, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

typedef long long ll;
typedef long double ld;

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

typedef vector<int> vi;
typedef vector<ll> vll;

#define FOR(i,j,k,in) for(int i=(j); i < (k);i+=in)
#define FORD(i,j,k,in) for(int i=(j); i >=(k);i-=in)
#define REP(i,b) FOR(i,0,b,1)
#define REPD(i,b) FORD(i,b,0,1)
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define all(x) begin(x), end(x)
#define MANY_TESTS int tcase; cin >> tcase; while(tcase--)

const double EPS = 1e-9;
const int MOD = 1e9+7;
const ll INFF = 1e18;
const int INF = 1e9;
const ld PI = acos((ld)-1);
const vi dy = {1, 0, -1, 0, -1, 1, 1, -1};
const vi dx = {0, 1, 0, -1, -1, 1, -1, 1};

void DBG(){cout << "]" << endl;}
template<typename T, typename ...U> void DBG(const T& head, const U... args){ cout << head << "; "; DBG(args...); }
#define dbg(...) cout << "Line(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__);
#define chk() cout << "Check at line(" << __LINE__ << ") hit." << endl;

template<class T, unsigned int U>
ostream& operator<<(ostream& out, const array<T, U> &v){out << "[";  REP(i, U) out << v[i] << ", ";  out << "]"; return out;}
template <class T, class U>
ostream& operator<<(ostream& out, const pair<T, U> &par) {out << "[" << par.first << ";" << par.second << "]"; return out;}
template <class T>
ostream& operator<<(ostream& out, const set<T> &cont) { out << "{"; for( const auto &x:cont) out << x << ", "; out << "}"; return out; }
template <class T, class U>
ostream& operator<<(ostream& out, const map<T, U> &cont) {out << "{"; for( const auto &x:cont) out << x << ", "; out << "}"; return out; }
template<class T>
ostream& operator<<(ostream& out, const vector<T> &v){ out << "[";  REP(i, v.size()) out << v[i] << ", ";  out << "]"; return out;}

template<class T>
istream& operator>>(istream& in, vector<T> &v){ for(auto &x : v) in >> x; return in; }

const int mod = 998244353;
int main(){
 	ios_base::sync_with_stdio(false);
 	cin.tie(NULL); cout.tie(NULL);
 	const int alpha = 52;
    vector<int> cnv(150);
    REP(i, 26) cnv['a' + i] = i;
    REP(i, 26) {
        cnv['A' + i] = 26 + i;
    }
    REP(i, 10){
        cnv['0' + i] = 52 + i;
    }
    int n; cin >> n;
    vector<string> strings(n);
    cin >> strings;
    REP(i, n){
        string ns = strings[i];
        reverse(all(ns));
        strings.pb(ns);
    }
    sort(all(strings));
    ll D[alpha][alpha][alpha];
    ll cn[alpha][alpha];
    auto solve = [&](vector<string> &a){
        int nn = a.size();
        memset(D, 0, sizeof(D));
        memset(cn, 0, sizeof(cn));
        string xprev = "";
        for(string x : a){
            if(x == xprev) continue;
            int f = cnv[x[0]]; int s = cnv[x.back()];
            cn[f][s]++;
            xprev = x;
        }
        REP(i, alpha){
            REP(j, alpha){
                REP(k, alpha){
                    REP(g, alpha){
                        D[j][k][g] += (cn[i][j] * cn[i][k] * cn[i][g]) % mod;
                        D[j][k][g] %= mod;
                    }
                }
            }
        }
        ll res = 0;
        REP(a, alpha){
            REP(b, alpha){
                REP(c, alpha){
                    REP(d, alpha){
                        res += (((((D[a][d][c] * D[a][d][b]) % mod) * D[a][c][b]) % mod) * D[d][c][b]) % mod;
                        res %= mod;
                    }
                }
            }
        }
        return res;
    };
    vector<vector<string>> todo(11);
    REP(i, strings.size()) todo[strings[i].length()].pb(strings[i]);
    ll ans = 0;
    FOR(i, 3, 11, 1){
        if(todo[i].size() > 0)
            ans += solve(todo[i]);
        ans %= mod;
    }
    cout << ans << "\n";
    return 0;
}

Compilation message

cubeword.cpp: In lambda function:
cubeword.cpp:84:13: warning: unused variable 'nn' [-Wunused-variable]
   84 |         int nn = a.size();
      |             ^~
cubeword.cpp: In function 'int main()':
cubeword.cpp:21:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 | #define FOR(i,j,k,in) for(int i=(j); i < (k);i+=in)
      |                                        ^
cubeword.cpp:23:18: note: in expansion of macro 'FOR'
   23 | #define REP(i,b) FOR(i,0,b,1)
      |                  ^~~
cubeword.cpp:118:5: note: in expansion of macro 'REP'
  118 |     REP(i, strings.size()) todo[strings[i].length()].pb(strings[i]);
      |     ^~~

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 872 ms 17972 KB Output is correct
2 Correct 863 ms 18356 KB Output is correct
3 Correct 880 ms 18996 KB Output is correct
4 Correct 864 ms 18228 KB Output is correct
5 Correct 880 ms 17716 KB Output is correct
6 Correct 867 ms 17972 KB Output is correct
7 Correct 863 ms 17588 KB Output is correct
8 Correct 867 ms 18228 KB Output is correct
9 Correct 861 ms 17936 KB Output is correct
10 Correct 868 ms 18192 KB Output is correct
11 Correct 865 ms 17676 KB Output is correct
12 Correct 868 ms 18740 KB Output is correct
13 Correct 871 ms 17972 KB Output is correct
14 Correct 866 ms 18100 KB Output is correct
15 Correct 870 ms 17864 KB Output is correct
16 Correct 871 ms 17552 KB Output is correct
17 Correct 872 ms 18120 KB Output is correct
18 Correct 888 ms 18100 KB Output is correct
19 Correct 858 ms 19124 KB Output is correct
20 Correct 865 ms 18100 KB Output is correct
21 Correct 878 ms 17972 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 872 ms 17972 KB Output is correct
2 Correct 863 ms 18356 KB Output is correct
3 Correct 880 ms 18996 KB Output is correct
4 Correct 864 ms 18228 KB Output is correct
5 Correct 880 ms 17716 KB Output is correct
6 Correct 867 ms 17972 KB Output is correct
7 Correct 863 ms 17588 KB Output is correct
8 Correct 867 ms 18228 KB Output is correct
9 Correct 861 ms 17936 KB Output is correct
10 Correct 868 ms 18192 KB Output is correct
11 Correct 865 ms 17676 KB Output is correct
12 Correct 868 ms 18740 KB Output is correct
13 Correct 871 ms 17972 KB Output is correct
14 Correct 866 ms 18100 KB Output is correct
15 Correct 870 ms 17864 KB Output is correct
16 Correct 871 ms 17552 KB Output is correct
17 Correct 872 ms 18120 KB Output is correct
18 Correct 888 ms 18100 KB Output is correct
19 Correct 858 ms 19124 KB Output is correct
20 Correct 865 ms 18100 KB Output is correct
21 Correct 878 ms 17972 KB Output is correct
22 Correct 874 ms 15640 KB Output is correct
23 Correct 887 ms 15412 KB Output is correct
24 Correct 884 ms 15540 KB Output is correct
25 Correct 892 ms 16180 KB Output is correct
26 Correct 878 ms 15796 KB Output is correct
27 Correct 863 ms 16436 KB Output is correct
28 Correct 862 ms 16180 KB Output is correct
29 Correct 863 ms 16408 KB Output is correct
30 Correct 862 ms 15796 KB Output is correct
31 Correct 865 ms 16544 KB Output is correct
32 Correct 853 ms 15412 KB Output is correct
33 Correct 872 ms 16520 KB Output is correct
34 Correct 869 ms 16528 KB Output is correct
35 Correct 864 ms 16268 KB Output is correct
36 Correct 861 ms 16180 KB Output is correct
37 Correct 854 ms 16392 KB Output is correct
38 Correct 852 ms 15924 KB Output is correct
39 Correct 861 ms 16656 KB Output is correct
40 Correct 859 ms 16436 KB Output is correct
41 Correct 896 ms 15668 KB Output is correct
42 Correct 853 ms 15532 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 872 ms 17972 KB Output is correct
2 Correct 863 ms 18356 KB Output is correct
3 Correct 880 ms 18996 KB Output is correct
4 Correct 864 ms 18228 KB Output is correct
5 Correct 880 ms 17716 KB Output is correct
6 Correct 867 ms 17972 KB Output is correct
7 Correct 863 ms 17588 KB Output is correct
8 Correct 867 ms 18228 KB Output is correct
9 Correct 861 ms 17936 KB Output is correct
10 Correct 868 ms 18192 KB Output is correct
11 Correct 865 ms 17676 KB Output is correct
12 Correct 868 ms 18740 KB Output is correct
13 Correct 871 ms 17972 KB Output is correct
14 Correct 866 ms 18100 KB Output is correct
15 Correct 870 ms 17864 KB Output is correct
16 Correct 871 ms 17552 KB Output is correct
17 Correct 872 ms 18120 KB Output is correct
18 Correct 888 ms 18100 KB Output is correct
19 Correct 858 ms 19124 KB Output is correct
20 Correct 865 ms 18100 KB Output is correct
21 Correct 878 ms 17972 KB Output is correct
22 Correct 874 ms 15640 KB Output is correct
23 Correct 887 ms 15412 KB Output is correct
24 Correct 884 ms 15540 KB Output is correct
25 Correct 892 ms 16180 KB Output is correct
26 Correct 878 ms 15796 KB Output is correct
27 Correct 863 ms 16436 KB Output is correct
28 Correct 862 ms 16180 KB Output is correct
29 Correct 863 ms 16408 KB Output is correct
30 Correct 862 ms 15796 KB Output is correct
31 Correct 865 ms 16544 KB Output is correct
32 Correct 853 ms 15412 KB Output is correct
33 Correct 872 ms 16520 KB Output is correct
34 Correct 869 ms 16528 KB Output is correct
35 Correct 864 ms 16268 KB Output is correct
36 Correct 861 ms 16180 KB Output is correct
37 Correct 854 ms 16392 KB Output is correct
38 Correct 852 ms 15924 KB Output is correct
39 Correct 861 ms 16656 KB Output is correct
40 Correct 859 ms 16436 KB Output is correct
41 Correct 896 ms 15668 KB Output is correct
42 Correct 853 ms 15532 KB Output is correct
43 Correct 867 ms 16564 KB Output is correct
44 Correct 852 ms 16564 KB Output is correct
45 Correct 855 ms 16436 KB Output is correct
46 Correct 861 ms 16912 KB Output is correct
47 Correct 854 ms 16436 KB Output is correct
48 Correct 862 ms 16684 KB Output is correct
49 Correct 878 ms 16436 KB Output is correct
50 Correct 852 ms 16948 KB Output is correct
51 Correct 853 ms 16820 KB Output is correct
52 Correct 861 ms 16976 KB Output is correct
53 Correct 852 ms 16820 KB Output is correct
54 Correct 873 ms 17204 KB Output is correct
55 Correct 884 ms 16912 KB Output is correct
56 Correct 852 ms 16180 KB Output is correct
57 Correct 854 ms 17204 KB Output is correct
58 Correct 883 ms 16436 KB Output is correct
59 Correct 867 ms 16820 KB Output is correct
60 Correct 854 ms 16052 KB Output is correct
61 Correct 853 ms 16692 KB Output is correct
62 Correct 851 ms 15924 KB Output is correct
63 Correct 865 ms 16144 KB Output is correct

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 872 ms 17972 KB Output is correct
2 Correct 863 ms 18356 KB Output is correct
3 Correct 880 ms 18996 KB Output is correct
4 Correct 864 ms 18228 KB Output is correct
5 Correct 880 ms 17716 KB Output is correct
6 Correct 867 ms 17972 KB Output is correct
7 Correct 863 ms 17588 KB Output is correct
8 Correct 867 ms 18228 KB Output is correct
9 Correct 861 ms 17936 KB Output is correct
10 Correct 868 ms 18192 KB Output is correct
11 Correct 865 ms 17676 KB Output is correct
12 Correct 868 ms 18740 KB Output is correct
13 Correct 871 ms 17972 KB Output is correct
14 Correct 866 ms 18100 KB Output is correct
15 Correct 870 ms 17864 KB Output is correct
16 Correct 871 ms 17552 KB Output is correct
17 Correct 872 ms 18120 KB Output is correct
18 Correct 888 ms 18100 KB Output is correct
19 Correct 858 ms 19124 KB Output is correct
20 Correct 865 ms 18100 KB Output is correct
21 Correct 878 ms 17972 KB Output is correct
22 Correct 874 ms 15640 KB Output is correct
23 Correct 887 ms 15412 KB Output is correct
24 Correct 884 ms 15540 KB Output is correct
25 Correct 892 ms 16180 KB Output is correct
26 Correct 878 ms 15796 KB Output is correct
27 Correct 863 ms 16436 KB Output is correct
28 Correct 862 ms 16180 KB Output is correct
29 Correct 863 ms 16408 KB Output is correct
30 Correct 862 ms 15796 KB Output is correct
31 Correct 865 ms 16544 KB Output is correct
32 Correct 853 ms 15412 KB Output is correct
33 Correct 872 ms 16520 KB Output is correct
34 Correct 869 ms 16528 KB Output is correct
35 Correct 864 ms 16268 KB Output is correct
36 Correct 861 ms 16180 KB Output is correct
37 Correct 854 ms 16392 KB Output is correct
38 Correct 852 ms 15924 KB Output is correct
39 Correct 861 ms 16656 KB Output is correct
40 Correct 859 ms 16436 KB Output is correct
41 Correct 896 ms 15668 KB Output is correct
42 Correct 853 ms 15532 KB Output is correct
43 Correct 867 ms 16564 KB Output is correct
44 Correct 852 ms 16564 KB Output is correct
45 Correct 855 ms 16436 KB Output is correct
46 Correct 861 ms 16912 KB Output is correct
47 Correct 854 ms 16436 KB Output is correct
48 Correct 862 ms 16684 KB Output is correct
49 Correct 878 ms 16436 KB Output is correct
50 Correct 852 ms 16948 KB Output is correct
51 Correct 853 ms 16820 KB Output is correct
52 Correct 861 ms 16976 KB Output is correct
53 Correct 852 ms 16820 KB Output is correct
54 Correct 873 ms 17204 KB Output is correct
55 Correct 884 ms 16912 KB Output is correct
56 Correct 852 ms 16180 KB Output is correct
57 Correct 854 ms 17204 KB Output is correct
58 Correct 883 ms 16436 KB Output is correct
59 Correct 867 ms 16820 KB Output is correct
60 Correct 854 ms 16052 KB Output is correct
61 Correct 853 ms 16692 KB Output is correct
62 Correct 851 ms 15924 KB Output is correct
63 Correct 865 ms 16144 KB Output is correct
64 Incorrect 855 ms 16356 KB Output isn't correct
65 Halted 0 ms 0 KB -