oj.uz

답안 #748719

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
748719 2023-05-26T19:01:43 Z PixelCat Selling RNA Strands (JOI16_selling_rna) C++14
60 / 100
 332 ms 272172 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 = 3000010;  // 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++;
        if(cur_node >= MAXS) exit(0);
        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 >/////<
    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

# 결과 실행 시간 메모리 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

# 결과 실행 시간 메모리 Grader output
1 Correct 262 ms 217620 KB Output is correct
2 Correct 250 ms 206004 KB Output is correct
3 Correct 257 ms 214592 KB Output is correct
4 Correct 248 ms 204232 KB Output is correct
5 Correct 321 ms 268064 KB Output is correct
6 Correct 332 ms 272172 KB Output is correct
7 Correct 40 ms 1976 KB Output is correct
8 Correct 231 ms 158044 KB Output is correct
9 Correct 195 ms 132692 KB Output is correct
10 Correct 157 ms 128884 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 301 ms 5956 KB Output is correct
2 Correct 45 ms 3912 KB Output is correct
3 Correct 82 ms 4412 KB Output is correct
4 Correct 81 ms 3648 KB Output is correct
5 Correct 45 ms 3912 KB Output is correct
6 Correct 82 ms 4372 KB Output is correct

Subtask #4
0 / 40.0

# 결과 실행 시간 메모리 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 262 ms 217620 KB Output is correct
9 Correct 250 ms 206004 KB Output is correct
10 Correct 257 ms 214592 KB Output is correct
11 Correct 248 ms 204232 KB Output is correct
12 Correct 321 ms 268064 KB Output is correct
13 Correct 332 ms 272172 KB Output is correct
14 Correct 40 ms 1976 KB Output is correct
15 Correct 231 ms 158044 KB Output is correct
16 Correct 195 ms 132692 KB Output is correct
17 Correct 157 ms 128884 KB Output is correct
18 Correct 301 ms 5956 KB Output is correct
19 Correct 45 ms 3912 KB Output is correct
20 Correct 82 ms 4412 KB Output is correct
21 Correct 81 ms 3648 KB Output is correct
22 Correct 45 ms 3912 KB Output is correct
23 Correct 82 ms 4372 KB Output is correct
24 Correct 246 ms 178444 KB Output is correct
25 Correct 241 ms 179496 KB Output is correct
26 Correct 226 ms 176124 KB Output is correct
27 Correct 233 ms 176160 KB Output is correct
28 Runtime error 128 ms 54704 KB Execution killed with signal 11
29 Halted 0 ms 0 KB -