oj.uz

Submission #748717

# Submission time Handle Problem Language Result Execution time Memory
748717 2023-05-26T18:57:01 Z PixelCat Selling RNA Strands (JOI16_selling_rna) C++14
60 / 100
 335 ms 272072 KB 
/*     code by PixelCat     */
/*         meow owo         */

#include <bits/stdc++.h>
// #define int LL  //__int128
#define double long double
using namespace std;
using LL = long long;
// using i128 = __int128_t;
using ull = unsigned long long;
using pii = pair<int, int>;

#define For(i, a, b) for (int i = a; i <= b; i++)
#define Fors(i, a, b, s) for (int i = a; i <= b; i += s)
#define Forr(i, a, b) for (int i = a; i >= b; i--)
#define F first
#define S second

#define eb emplace_back
#define all(x) x.begin(), x.end()
#define sz(x) ((int)x.size())
#define mkp make_pair

#define MOD (int)(998244353)
// #define MOD (int)((LL)1'000'000'007)
#define INF (int)(4e18)
#define EPS (1e-6)

namespace PixelCat {

#ifdef NYAOWO
#include "/home/pixelcat/yodayo/meow/library/debug.hpp"
inline void USACO(const string &s) {
    cerr << "USACO: " << s << "\n";
}

#else
#define debug(...)
inline void timer() {}
inline void USACO(const string &s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}

#endif

inline void NYA() {
    ios::sync_with_stdio(false);
    cin.tie(0);
}
inline int gcd(int a, int b) {
    return __gcd(a, b);
}
inline int lcm(int a, int b) {
    return a / gcd(a, b) * b;
}
int fpow(int b, int p, const int &mod = MOD) {
    int ans = 1;
    for (; p; p >>= 1, b = b * b % mod)
        if (p & 1) ans = ans * b % mod;
    return ans;
}
template <typename T>
inline void chmin(T &_a, const T &_b) {
    if (_b < _a) _a = _b;
}
template <typename T>
inline void chmax(T &_a, const T &_b) {
    if (_b > _a) _a = _b;
}
mt19937_64 rng(
    chrono::steady_clock::now().time_since_epoch().count());

} // namespace PixelCat
using namespace PixelCat;

const int MAXN = 100010;   // N, Q
const int MAXS = 2000010;  // total # of characters

using nodeid = int;
struct Trie {
    nodeid cur_node, rt;
    int dfs_time;
    nodeid nxt[MAXS][26];
    int l[MAXS];
    int r[MAXS];
    vector<nodeid> end_node;

    nodeid new_node() {
        cur_node++;
        memset(nxt[cur_node], 0, sizeof(nxt[cur_node]));
        l[cur_node] = 0;
        r[cur_node] = -1;
        return cur_node;
    }
    void init() {
        cur_node = 0;
        rt = new_node();
    }
    void insert(const string &s) {
        int nd = rt;
        for(const char &ch:s) {
            nodeid &nnd = nxt[nd][ch - 'A'];
            if(!nnd) nnd = new_node();
            nd = nnd;
        }
        end_node.eb(nd);
        r[nd]++;
    }
    void _dfs(int nd) {
        l[nd] += dfs_time;
        r[nd] += dfs_time;
        dfs_time = r[nd] + 1;
        For(ch, 0, 25) {
            nodeid nnd = nxt[nd][ch];
            if(nnd) {
                _dfs(nnd);
                r[nd] = r[nnd];
            }
        }
    }
    void build(int* pos) {
        dfs_time = 1;
        _dfs(rt);
        For(i, 0, sz(end_node) - 1) {
            nodeid nd = end_node[i];
            pos[i + 1] = l[nd];
        }
    }
    pii find(const string &s) {
        int nd = rt;
        for(const char &ch:s) {
            nodeid &nnd = nxt[nd][ch - 'A'];
            if(!nnd) return pii(-1, -1);
            nd = nnd;
        }
        return pii(l[nd], r[nd]);
    }
} tt, tr;

#define LO(x) ((x) & (-(x)))
struct BIT {
    int n;
    int a[MAXN];
    void init(int _n) {
        n = _n;
        memset(a, 0, sizeof(a));
    }
    void add(int i, int x) {
        while(i <= n) {
            a[i] += x;
            i += LO(i);
        }
    }
    int ask(int i) {
        int res = 0;
        while(i) {
            res += a[i];
            i -= LO(i);
        }
        return res;
    }
    int ask(int l, int r) {
        return ask(r) - ask(l - 1);
    }
} bit;

struct SweepingLine {
    struct Event {
        int x, yl, yr, id;
    }; vector<Event> ev;
    int ans[MAXN];
    void init() {
        memset(ans, 0, sizeof(ans));
    }
    void add_pt(int x, int y) {
        ev.eb((Event){x, y, 0, 0});
    }
    void add_qry(int id, pii x, pii y) {
        ev.eb((Event){x.F - 1, y.F, y.S, -id});
        ev.eb((Event){x.S, y.F, y.S, id});
    }
    int* solve(int n) {
        sort(all(ev), [&](const Event &ea, const Event &eb) {
            if(ea.x != eb.x) return ea.x < eb.x;
            return ea.id == 0;
        });
        reverse(all(ev));
        bit.init(n);
        while(!ev.empty()) {
            Event e = ev.back();
            ev.pop_back();
            if(e.id == 0) {
                bit.add(e.yl, 1);
            } else if(e.id > 0) {
                ans[e.id] += bit.ask(e.yl, e.yr);
            } else {
                ans[-e.id] -= bit.ask(e.yl, e.yr);
            }
        }
        return ans;
    }
} swp;

int posx[MAXN];
int posy[MAXN];

int32_t main() {
    NYA();
    // nyaacho >/////<
    int n, q; cin >> n >> q;

    tt.init();
    tr.init();
    For(i, 1, n) {
        string s; cin >> s;
        tt.insert(s);
        reverse(all(s));
        tr.insert(s);
    }

    tt.build(posx);
    tr.build(posy);
    swp.init();
    For(i, 1, n) {
        swp.add_pt(posx[i], posy[i]);
    }
    
    For(i, 1, q) {
        string sx, sy;
        cin >> sx >> sy;
        pii px = tt.find(sx);
        reverse(all(sy));
        pii py = tr.find(sy);

        if(px.F >= 0 && py.F >= 0) {
            swp.add_qry(i, px, py);
        }
    }

    int* ans = swp.solve(n);
    For(i, 1, q) {
        cout << ans[i] << "\n";
    }
    return 0;
}

/*

2 3
AUGC
AGC
G C
AU C
A C

=> 0 1 2


3 3
AA
AA
AGA
AA AA
AG GA
AG GA

=> 2 1 1


8 7
GCGCUACCCCAACACAAGGCAAGAUAUA
G
GGAC
GCGG
U
GCGCUACCCCAACACAAGGCAAGAUGGUC
GCCG
GCGCUGA
GCGCUACCC A
GCGCUACCCC AC
GCG C
GCGC A
G G
G C
G GGA

=> 1 0 1 2 3 2 0

*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1108 KB Output is correct
2 Correct 1 ms 1108 KB Output is correct
3 Correct 1 ms 1108 KB Output is correct
4 Correct 1 ms 1108 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 274 ms 217512 KB Output is correct
2 Correct 260 ms 206108 KB Output is correct
3 Correct 268 ms 214472 KB Output is correct
4 Correct 256 ms 204204 KB Output is correct
5 Correct 334 ms 268180 KB Output is correct
6 Correct 335 ms 272072 KB Output is correct
7 Correct 39 ms 1992 KB Output is correct
8 Correct 236 ms 157992 KB Output is correct
9 Correct 199 ms 132636 KB Output is correct
10 Correct 168 ms 128884 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 293 ms 5920 KB Output is correct
2 Correct 45 ms 3912 KB Output is correct
3 Correct 84 ms 4364 KB Output is correct
4 Correct 83 ms 3684 KB Output is correct
5 Correct 45 ms 3912 KB Output is correct
6 Correct 84 ms 4368 KB Output is correct

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1108 KB Output is correct
2 Correct 1 ms 1108 KB Output is correct
3 Correct 1 ms 1108 KB Output is correct
4 Correct 1 ms 1108 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct
8 Correct 274 ms 217512 KB Output is correct
9 Correct 260 ms 206108 KB Output is correct
10 Correct 268 ms 214472 KB Output is correct
11 Correct 256 ms 204204 KB Output is correct
12 Correct 334 ms 268180 KB Output is correct
13 Correct 335 ms 272072 KB Output is correct
14 Correct 39 ms 1992 KB Output is correct
15 Correct 236 ms 157992 KB Output is correct
16 Correct 199 ms 132636 KB Output is correct
17 Correct 168 ms 128884 KB Output is correct
18 Correct 293 ms 5920 KB Output is correct
19 Correct 45 ms 3912 KB Output is correct
20 Correct 84 ms 4364 KB Output is correct
21 Correct 83 ms 3684 KB Output is correct
22 Correct 45 ms 3912 KB Output is correct
23 Correct 84 ms 4368 KB Output is correct
24 Correct 236 ms 178532 KB Output is correct
25 Correct 257 ms 179464 KB Output is correct
26 Correct 243 ms 176216 KB Output is correct
27 Correct 245 ms 176192 KB Output is correct
28 Runtime error 137 ms 60684 KB Execution killed with signal 11
29 Halted 0 ms 0 KB -