oj.uz

Submission #651762

# Submission time Handle Problem Language Result Execution time Memory
651762 2022-10-20T01:41:52 Z ghostwriter Tropical Garden (IOI11_garden) C++14
69 / 100
 5000 ms 19000 KB 
#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx2")
#include "garden.h"
#include "gardenlib.h"
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include <debug.h>
#include "grader.cpp"
#else
#define debug(...)
#endif
#define ft front
#define bk back
#define st first
#define nd second
#define ins insert
#define ers erase
#define pb push_back
#define pf push_front
#define _pb pop_back
#define _pf pop_front
#define lb lower_bound
#define ub upper_bound
#define mtp make_tuple
#define bg begin
#define ed end
#define all(x) x.bg(), x.ed()
#define sz(x) (int)x.size()
typedef long long ll; typedef unsigned long long ull;
typedef double db; typedef long double ldb;
typedef pair<int, int> pi; typedef pair<ll, ll> pll;
typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pi> vpi; typedef vector<pll> vpll;
typedef string str;
template<typename T> T gcd(T a, T b) { return (b == 0? a : gcd(b, a % b)); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }
#define FOR(i, l, r) for (int i = l; i <= r; ++i)
#define FOS(i, r, l) for (int i = r; i >= l; --i)
#define FRN(i, n) for (int i = 0; i < n; ++i)
#define FSN(i, n) for (int i = n - 1; i >= 0; --i)
#define EACH(i, x) for (auto &i : x)
#define WHILE while
#define file "TEST"
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
ll rand(ll l, ll r) { return uniform_int_distribution<ll>(l, r)(rd); }
/*
----------------------------------------------------------------
    END OF TEMPLATE
----------------------------------------------------------------
    Tran The Bao - ghostwriter
    Training for VOI23 gold medal
----------------------------------------------------------------
    GOAT
----------------------------------------------------------------
*/
const int MAXN = 15e4;
int ind[MAXN][2], c[MAXN][2], c1[MAXN][2], s[MAXN][2], d[MAXN][2];
vi adj[MAXN];
vpi e;
pi nxt(pi x) {
    int u = x.st;
    bool stt = x.nd;
    int id = (!stt? 0 : sz(adj[u]) == 1? 0 : 1);
    int nxtv = e[adj[u][id]].st == u? e[adj[u][id]].nd : e[adj[u][id]].st;
    return {nxtv, adj[u][id] == adj[nxtv][0]? 1 : 0};
}
int cal(int &N, int &P, int &x) {
    memset(c, 0, sizeof c);
    int ans = 0;
    FRN(i, N)
    FRN(j, 2) {
        if (ind[i][j]) continue;
        int x1 = x;
        if (x1 > d[i][j]) {
            x1 -= d[i][j];
            x1 %= s[i][j];
            x1 += d[i][j];
        }
        pi cur = {i, j};
        FOR(z, 1, x1) cur = nxt(cur);
        if (!j && cur.st == P) ++ans;
        c[i][j] = 1;
        pi cur1 = nxt({i, j});
        WHILE(!c[cur1.st][cur1.nd]) {
            cur = nxt(cur);
            if (!cur1.nd && cur.st == P) ++ans;
            c[cur1.st][cur1.nd] = 1;
            cur1 = nxt(cur1);
        }
    }
    FRN(i, N)
    FRN(j, 2) {
        if (c[i][j]) continue;
        int x1 = x % s[i][j];
        pi cur = {i, j};
        FOR(z, 1, x1) cur = nxt(cur);
        if (!j && cur.st == P) ++ans;
        c[i][j] = 1;
        pi cur1 = nxt({i, j});
        WHILE(!c[cur1.st][cur1.nd]) {
            cur = nxt(cur);
            if (!cur1.nd && cur.st == P) ++ans;
            c[cur1.st][cur1.nd] = 1;
            cur1 = nxt(cur1);
        }   
    }
    return ans;
}
void count_routes(int N, int M, int P, int R[][2], int Q, int G[]) {
    FRN(i, M) {
        int u = R[i][0], v = R[i][1];
        e.pb({u, v});
        if (sz(adj[u]) < 2) adj[u].pb(i);
        if (sz(adj[v]) < 2) adj[v].pb(i);
    }
    vpi ver;
    ver.resize(2 * N);
    ver.clear();
    FRN(i, N)
    FRN(j, 2) {
        pi tmp1 = nxt({i, j});
        ind[tmp1.st][tmp1.nd] = 1;
        if (c1[i][j]) continue;
        pi cur = {i, j};
        ver.clear();
        WHILE(1) {
            if (!c[cur.st][cur.nd]) ver.pb(cur);
            ++c[cur.st][cur.nd];
            cur = nxt(cur);
            if (c1[cur.st][cur.nd] || c[cur.st][cur.nd] == 2) break;
        }
        reverse(all(ver));
        if (c[ver.ft().st][ver.ft().nd] == 2) {
            int cnt = 0, h = 0;
            EACH(z, ver) if (c[z.st][z.nd] == 2) ++cnt;
            EACH(z, ver) {
                if (c[z.st][z.nd] == 1) ++h;
                s[z.st][z.nd] = cnt;
                d[z.st][z.nd] = h;
            }
        }
        else {
            pi tmp = nxt(ver.ft());
            int cnt = s[tmp.st][tmp.nd], h = d[tmp.st][tmp.nd];
            EACH(z, ver) {
                ++h;
                s[z.st][z.nd] = cnt;
                d[z.st][z.nd] = h;
            }
        }
        EACH(z, ver) c1[z.st][z.nd] = 1;
    }
    FRN(q, Q) answer(cal(N, P, G[q]));
}
/*
5 5 2
1 0
1 2
3 2
1 3
4 2
2
3 1
1 2

0 0 1 1
0 1 1 1
1 0 0 1
1 1 2 1
2 0 1 0
2 1 3 1
3 0 2 0
3 1 1 0
4 0 2 0
4 1 2 0
----------------------------------------------------------------
From Benq:
    stuff you should look for
        * int overflow, array bounds
        * special cases (n=1?)
        * do smth instead of nothing and stay organized
        * WRITE STUFF DOWN
        * DON'T GET STUCK ON ONE APPROACH
----------------------------------------------------------------
*/

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 4 ms 5076 KB Output is correct
3 Correct 3 ms 5116 KB Output is correct
4 Correct 3 ms 4928 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 4 ms 5080 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 5 ms 5204 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 4 ms 5076 KB Output is correct
3 Correct 3 ms 5116 KB Output is correct
4 Correct 3 ms 4928 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 4 ms 5080 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 5 ms 5204 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 289 ms 7116 KB Output is correct
12 Correct 374 ms 8792 KB Output is correct
13 Correct 41 ms 12948 KB Output is correct
14 Correct 168 ms 17820 KB Output is correct
15 Correct 188 ms 18004 KB Output is correct
16 Correct 1612 ms 14328 KB Output is correct
17 Correct 130 ms 13112 KB Output is correct
18 Correct 100 ms 8788 KB Output is correct
19 Correct 223 ms 17792 KB Output is correct
20 Correct 190 ms 17976 KB Output is correct
21 Correct 673 ms 14216 KB Output is correct
22 Correct 128 ms 13104 KB Output is correct
23 Correct 629 ms 19000 KB Output is correct

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 4 ms 5076 KB Output is correct
3 Correct 3 ms 5116 KB Output is correct
4 Correct 3 ms 4928 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 4 ms 5080 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 5 ms 5204 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 289 ms 7116 KB Output is correct
12 Correct 374 ms 8792 KB Output is correct
13 Correct 41 ms 12948 KB Output is correct
14 Correct 168 ms 17820 KB Output is correct
15 Correct 188 ms 18004 KB Output is correct
16 Correct 1612 ms 14328 KB Output is correct
17 Correct 130 ms 13112 KB Output is correct
18 Correct 100 ms 8788 KB Output is correct
19 Correct 223 ms 17792 KB Output is correct
20 Correct 190 ms 17976 KB Output is correct
21 Correct 673 ms 14216 KB Output is correct
22 Correct 128 ms 13104 KB Output is correct
23 Correct 629 ms 19000 KB Output is correct
24 Correct 72 ms 5060 KB Output is correct
25 Execution timed out 5072 ms 7120 KB Time limit exceeded
26 Halted 0 ms 0 KB -