oj.uz

Submission #748721

# Submission time Handle Problem Language Result Execution time Memory
748721 2023-05-26T19:08:20 Z PixelCat Selling RNA Strands (JOI16_selling_rna) C++14
35 / 100
 290 ms 59624 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][4];
    int l[MAXS];
    int r[MAXS];
    vector<nodeid> end_node;

    int ord(const char &ch) {
        switch(ch) {
            case 'A':
                return 0;
            case 'U':
                return 1;
            case 'C':
                return 2;
            default:
                return 3;
        }
    }
    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][ord(ch)];
            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, 3) {
            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][ord(ch)];
            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 >/////<
    cerr << (sizeof(tt) * 2 + sizeof(bit) + sizeof(swp) + sizeof(posx) * 2) << "\n";

    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 90 ms 47788 KB Output is correct
2 Correct 90 ms 45524 KB Output is correct
3 Correct 91 ms 47288 KB Output is correct
4 Correct 85 ms 45080 KB Output is correct
5 Correct 110 ms 58668 KB Output is correct
6 Correct 115 ms 59624 KB Output is correct
7 Correct 28 ms 1628 KB Output is correct
8 Correct 71 ms 35092 KB Output is correct
9 Correct 65 ms 29664 KB Output is correct
10 Correct 53 ms 28844 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 290 ms 5956 KB Output is correct
2 Correct 41 ms 3528 KB Output is correct
3 Runtime error 18 ms 7152 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -

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 90 ms 47788 KB Output is correct
9 Correct 90 ms 45524 KB Output is correct
10 Correct 91 ms 47288 KB Output is correct
11 Correct 85 ms 45080 KB Output is correct
12 Correct 110 ms 58668 KB Output is correct
13 Correct 115 ms 59624 KB Output is correct
14 Correct 28 ms 1628 KB Output is correct
15 Correct 71 ms 35092 KB Output is correct
16 Correct 65 ms 29664 KB Output is correct
17 Correct 53 ms 28844 KB Output is correct
18 Correct 290 ms 5956 KB Output is correct
19 Correct 41 ms 3528 KB Output is correct
20 Runtime error 18 ms 7152 KB Execution killed with signal 11
21 Halted 0 ms 0 KB -