oj.uz

Submission #65793

# Submission time Handle Problem Language Result Execution time Memory
65793 2018-08-08T19:41:26 Z forestryks Savez (COCI15_savez) C++14
0 / 120
 94 ms 51772 KB 
///////////////////////////////////////////////////////////////////////////////////////////////
#include <bits/stdc++.h>
using namespace std;

// #define int long long

#define FAST_IO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define FILE_IO(x) freopen((string(x) + ".in").c_str(), "r", stdin); freopen((string(x) + ".out").c_str(), "w", stdout)
#define f first
#define s second
#define x1 x1qwer
#define y1 y1qwer
#define right right123
#define left left123
#define foreach(it, v) for (auto it : v)
#define rep(it, n) for (int it = 0; it < n; ++it)
#define forin(it, l, r) for (int it = l; it < r; ++it)
#define all(x) x.begin(), x.end()

typedef long long ll;
typedef unsigned long long ull;
typedef double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const double DINF = numeric_limits<double>::infinity();
const ll MOD = 1e9 + 7;
const double EPS = 1e-7;
ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
mt19937 mmtw_(MOD);
uniform_int_distribution<ll> rd_;
ll randomll() { return rd_(mmtw_);}
ll rnd(ll x, ll y) { return rd_(mmtw_) % (y - x + 1) + x; }
template <class T> T fact(T n) { if (n == 1) return 1; return n * fact(n - 1); }
////////////////////////////////////////////////////////////////////////////////////////////////

struct MyMap : vector<pair<int, int>> {
    int& operator[](const int v) {
        auto it = lower_bound(this->begin(), this->end(), make_pair(v, -1));
        if (it != this->end() && it->first == v) {
            return it->second;
        }
        return this->insert(it, {v, 0})->second;
    }
};

const int MAXN = 1e6 + 5;

int n;
int last = 1;
map<int, int> to[MAXN];
// MyMap to[MAXN];
int res[MAXN];
int term[MAXN];

inline int get(const string &s, int i) {
    return (s[i] - 'A') + (s[s.size() - 1 - i] - 'A') * 32;
}

void trie_add(const string &s) {
    int n = s.size();
    int v = 0;
    for (int i = 0; i < n; ++i) {
        int ch = get(s, i);

        if (to[v][ch] == 0) {
            to[v][ch] = last++;
            v = last - 1;
        } else {
            v = to[v][ch];
        }
    }

    term[v]++;
}

int dfs(int v) {
    res[v] = term[v];
    for (auto it : to[v]) {
        res[v] = max(res[v], dfs(it.s) + term[v]);
    }
    return res[v];
}

int main() {
    FAST_IO;
    cin >> n;
    rep(i, n) {
        string s;
        cin >> s;
        trie_add(s);
    }

    cout << dfs(0) << endl;
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 47356 KB Output is correct
2 Incorrect 41 ms 47464 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 47464 KB Output is correct
2 Correct 41 ms 47464 KB Output is correct
3 Incorrect 49 ms 51772 KB Output isn't correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 51772 KB Output is correct
2 Incorrect 51 ms 51772 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 51772 KB Output is correct
2 Correct 57 ms 51772 KB Output is correct
3 Incorrect 53 ms 51772 KB Output isn't correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 53 ms 51772 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 58 ms 51772 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 61 ms 51772 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 61 ms 51772 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 75 ms 51772 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 94 ms 51772 KB Output isn't correct
2 Halted 0 ms 0 KB -