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답안 #1084479

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1084479 2024-09-06T09:52:14 Z SamueleVid 디지털 회로 (IOI22_circuit) C++17
34 / 100
 3000 ms 13580 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long

constexpr ll MOD = 1000002022;
constexpr int MAXN = 2e5 + 5;
vector<int> adj[MAXN];
pair<ll, ll> dp[MAXN]; // attivo, spento
bool lazy[MAXN]; // attivo, spento
int N, M;
vector<int> A;
vector<int> P;
int PW;
bool is_seg = 0;

vector<ll> mult(vector<ll> &a, vector<ll> &b) { // b size è il minore ed è sempre 2
    int dim = (a.size() - 1) + (b.size() - 1) + 1;
    vector<ll> res(dim);

    for (int i = 0; i < a.size(); i ++) {
        for (int j = 0; j < b.size(); j ++) {
            int sum = (i + j < dim) ? i + j : i + j - dim;
            res[sum] += (a[i] * b[j]) % MOD;
            res[sum] %= MOD;
        }
    }

    return res;
}

void dfs(int u) {
    if (u >= N) return;

    vector<ll> poly;
    poly.push_back(1);

    for (auto x : adj[u]) {
        dfs(x);
        auto [acceso, spento] = dp[x];
        vector<ll> curr_poly = {spento, acceso};
        poly = mult(poly, curr_poly); 
    }

    ll acceso = 0;
    ll spento = 0;
    for (int i = 0; i < poly.size(); i ++) {
        acceso += (poly[i] * i) % MOD;
        acceso %= MOD;
        spento += (poly[i] * (poly.size() - 1 - i)) % MOD;
        spento %= MOD;
    }

    dp[u] = {acceso, spento};
}

pair<ll, ll> merge(int a, int b) {
    vector<ll> poly_a = {dp[a].second, dp[a].first};
    vector<ll> poly_b = {dp[b].second, dp[b].first};

    vector<ll> poly = mult(poly_a, poly_b);

    ll acceso = 0;
    ll spento = 0;
    for (int i = 0; i < poly.size(); i ++) {
        acceso += (poly[i] * i) % MOD;
        acceso %= MOD;
        spento += (poly[i] * (poly.size() - 1 - i)) % MOD;
        spento %= MOD;
    }

    return {acceso, spento};
}

void init(int N, int M, vector<int> P, vector<int> A) {
    :: N = N;
    :: M = M;
    :: A = A;
    :: P = P;
    :: PW = M;
    for (int i = 1; i < N + M; i ++) {
        adj[P[i]].push_back(i);
    }

    if (M == N + 1 && (M & (M - 1)) == 0) is_seg = 1;
    
    if (is_seg) {
        for (int i = 0; i < PW; i ++) dp[PW + i] = {A[i], A[i] ^ 1};
        for (int i = PW - 1; i >= 1; i --) dp[i] = merge(2 * i, 2 * i + 1);
        fill(lazy, lazy + MAXN, 0);
    }
}

void push_lazy(int idx) {
    if (lazy[idx] == 0) return;
    lazy[idx] = 0;
    auto [acceso, spento] = dp[idx];
    dp[idx] = {spento, acceso};

    if (idx >= PW) return;
    lazy[2 * idx] ^= 1;
    lazy[2 * idx + 1] ^= 1;
}

void update(int idx, int l, int r, int ql, int qr) {
    // cout << "idx, l, r, ql, qr : " << idx << " " << l << " " << r << " " << ql << " " << qr << '\n';
    push_lazy(idx);
    if (ql <= l && r <= qr) {
        lazy[idx] = 1;
        push_lazy(idx);
        return;
    }
    if (r <= ql || qr <= l) return;
    push_lazy(idx);

    update(2 * idx    , l, (l + r) / 2, ql, qr);
    update(2 * idx + 1, (l + r) / 2, r, ql, qr);

    dp[idx] = merge(2 * idx, 2 * idx + 1);
}

int count_ways(int L, int R) {
    if (!is_seg) {
        
        for (int i = L - N; i <= R - N; i ++) {
            A[i] ^= 1;
        }

        for (int i = 0; i < M; i ++) {
            dp[N + i] = {A[i], A[i] ^ 1};
        }

        dfs(0);
        return dp[0].first;
    }
    else {
          
        update(1, 0, PW, L - N, R + 1 - N);
        
        return dp[1].first;
    }
}

Compilation message

circuit.cpp: In function 'std::vector<long long int> mult(std::vector<long long int>&, std::vector<long long int>&)':
circuit.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for (int i = 0; i < a.size(); i ++) {
      |                     ~~^~~~~~~~~~
circuit.cpp:22:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         for (int j = 0; j < b.size(); j ++) {
      |                         ~~^~~~~~~~~~
circuit.cpp: In function 'void dfs(int)':
circuit.cpp:47:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     for (int i = 0; i < poly.size(); i ++) {
      |                     ~~^~~~~~~~~~~~~
circuit.cpp: In function 'std::pair<long long int, long long int> merge(int, int)':
circuit.cpp:65:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |     for (int i = 0; i < poly.size(); i ++) {
      |                     ~~^~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5208 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 19 ms 5208 KB Output is correct
4 Correct 20 ms 5208 KB Output is correct
5 Correct 20 ms 5208 KB Output is correct
6 Correct 19 ms 5152 KB Output is correct
7 Correct 20 ms 5208 KB Output is correct
8 Correct 20 ms 5268 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5208 KB Output is correct
2 Correct 2 ms 5208 KB Output is correct
3 Correct 2 ms 5208 KB Output is correct
4 Correct 2 ms 5208 KB Output is correct
5 Correct 2 ms 5208 KB Output is correct
6 Correct 3 ms 5208 KB Output is correct
7 Correct 3 ms 5208 KB Output is correct
8 Correct 3 ms 5208 KB Output is correct
9 Correct 3 ms 5208 KB Output is correct
10 Correct 3 ms 5208 KB Output is correct
11 Correct 3 ms 5208 KB Output is correct
12 Correct 3 ms 5208 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5208 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 19 ms 5208 KB Output is correct
4 Correct 20 ms 5208 KB Output is correct
5 Correct 20 ms 5208 KB Output is correct
6 Correct 19 ms 5152 KB Output is correct
7 Correct 20 ms 5208 KB Output is correct
8 Correct 20 ms 5268 KB Output is correct
9 Correct 2 ms 5208 KB Output is correct
10 Correct 2 ms 5208 KB Output is correct
11 Correct 2 ms 5208 KB Output is correct
12 Correct 2 ms 5208 KB Output is correct
13 Correct 2 ms 5208 KB Output is correct
14 Correct 3 ms 5208 KB Output is correct
15 Correct 3 ms 5208 KB Output is correct
16 Correct 3 ms 5208 KB Output is correct
17 Correct 3 ms 5208 KB Output is correct
18 Correct 3 ms 5208 KB Output is correct
19 Correct 3 ms 5208 KB Output is correct
20 Correct 3 ms 5208 KB Output is correct
21 Correct 3 ms 5208 KB Output is correct
22 Correct 3 ms 5208 KB Output is correct
23 Correct 3 ms 4952 KB Output is correct
24 Correct 4 ms 5188 KB Output is correct
25 Correct 3 ms 5208 KB Output is correct
26 Correct 3 ms 5208 KB Output is correct
27 Correct 3 ms 5208 KB Output is correct
28 Correct 4 ms 5208 KB Output is correct
29 Correct 20 ms 5208 KB Output is correct
30 Correct 23 ms 5208 KB Output is correct
31 Correct 2 ms 5208 KB Output is correct
32 Correct 3 ms 5208 KB Output is correct
33 Correct 3 ms 5208 KB Output is correct
34 Correct 3 ms 4952 KB Output is correct
35 Correct 6 ms 5208 KB Output is correct
36 Correct 3 ms 5208 KB Output is correct
37 Correct 20 ms 5464 KB Output is correct
38 Correct 20 ms 5464 KB Output is correct
39 Correct 4 ms 5208 KB Output is correct
40 Correct 3 ms 4952 KB Output is correct
41 Correct 3 ms 4952 KB Output is correct
42 Correct 3 ms 4952 KB Output is correct

Subtask #4
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 495 ms 8492 KB Output is correct
2 Correct 841 ms 11608 KB Output is correct
3 Correct 778 ms 11600 KB Output is correct
4 Correct 806 ms 11600 KB Output is correct

Subtask #5
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 495 ms 8492 KB Output is correct
2 Correct 841 ms 11608 KB Output is correct
3 Correct 778 ms 11600 KB Output is correct
4 Correct 806 ms 11600 KB Output is correct
5 Correct 709 ms 8536 KB Output is correct
6 Correct 938 ms 11608 KB Output is correct
7 Correct 887 ms 11608 KB Output is correct
8 Correct 855 ms 11608 KB Output is correct
9 Correct 441 ms 5464 KB Output is correct
10 Correct 813 ms 5720 KB Output is correct
11 Correct 819 ms 5720 KB Output is correct
12 Correct 763 ms 5720 KB Output is correct

Subtask #6
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5208 KB Output is correct
2 Correct 2 ms 5208 KB Output is correct
3 Correct 2 ms 5208 KB Output is correct
4 Correct 2 ms 5208 KB Output is correct
5 Correct 2 ms 5208 KB Output is correct
6 Correct 3 ms 5208 KB Output is correct
7 Correct 3 ms 5208 KB Output is correct
8 Correct 3 ms 5208 KB Output is correct
9 Correct 3 ms 5208 KB Output is correct
10 Correct 3 ms 5208 KB Output is correct
11 Correct 3 ms 5208 KB Output is correct
12 Correct 3 ms 5208 KB Output is correct
13 Correct 495 ms 8492 KB Output is correct
14 Correct 841 ms 11608 KB Output is correct
15 Correct 778 ms 11600 KB Output is correct
16 Correct 806 ms 11600 KB Output is correct
17 Correct 709 ms 8536 KB Output is correct
18 Correct 938 ms 11608 KB Output is correct
19 Correct 887 ms 11608 KB Output is correct
20 Correct 855 ms 11608 KB Output is correct
21 Correct 441 ms 5464 KB Output is correct
22 Correct 813 ms 5720 KB Output is correct
23 Correct 819 ms 5720 KB Output is correct
24 Correct 763 ms 5720 KB Output is correct
25 Execution timed out 3018 ms 13580 KB Time limit exceeded
26 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5208 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 19 ms 5208 KB Output is correct
4 Correct 20 ms 5208 KB Output is correct
5 Correct 20 ms 5208 KB Output is correct
6 Correct 19 ms 5152 KB Output is correct
7 Correct 20 ms 5208 KB Output is correct
8 Correct 20 ms 5268 KB Output is correct
9 Correct 2 ms 5208 KB Output is correct
10 Correct 2 ms 5208 KB Output is correct
11 Correct 2 ms 5208 KB Output is correct
12 Correct 2 ms 5208 KB Output is correct
13 Correct 2 ms 5208 KB Output is correct
14 Correct 3 ms 5208 KB Output is correct
15 Correct 3 ms 5208 KB Output is correct
16 Correct 3 ms 5208 KB Output is correct
17 Correct 3 ms 5208 KB Output is correct
18 Correct 3 ms 5208 KB Output is correct
19 Correct 3 ms 5208 KB Output is correct
20 Correct 3 ms 5208 KB Output is correct
21 Correct 3 ms 5208 KB Output is correct
22 Correct 3 ms 5208 KB Output is correct
23 Correct 3 ms 4952 KB Output is correct
24 Correct 4 ms 5188 KB Output is correct
25 Correct 3 ms 5208 KB Output is correct
26 Correct 3 ms 5208 KB Output is correct
27 Correct 3 ms 5208 KB Output is correct
28 Correct 4 ms 5208 KB Output is correct
29 Correct 20 ms 5208 KB Output is correct
30 Correct 23 ms 5208 KB Output is correct
31 Correct 2 ms 5208 KB Output is correct
32 Correct 3 ms 5208 KB Output is correct
33 Correct 3 ms 5208 KB Output is correct
34 Correct 3 ms 4952 KB Output is correct
35 Correct 6 ms 5208 KB Output is correct
36 Correct 3 ms 5208 KB Output is correct
37 Correct 20 ms 5464 KB Output is correct
38 Correct 20 ms 5464 KB Output is correct
39 Correct 4 ms 5208 KB Output is correct
40 Correct 3 ms 4952 KB Output is correct
41 Correct 3 ms 4952 KB Output is correct
42 Correct 3 ms 4952 KB Output is correct
43 Execution timed out 3002 ms 5208 KB Time limit exceeded
44 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5208 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 19 ms 5208 KB Output is correct
4 Correct 20 ms 5208 KB Output is correct
5 Correct 20 ms 5208 KB Output is correct
6 Correct 19 ms 5152 KB Output is correct
7 Correct 20 ms 5208 KB Output is correct
8 Correct 20 ms 5268 KB Output is correct
9 Correct 2 ms 5208 KB Output is correct
10 Correct 2 ms 5208 KB Output is correct
11 Correct 2 ms 5208 KB Output is correct
12 Correct 2 ms 5208 KB Output is correct
13 Correct 2 ms 5208 KB Output is correct
14 Correct 3 ms 5208 KB Output is correct
15 Correct 3 ms 5208 KB Output is correct
16 Correct 3 ms 5208 KB Output is correct
17 Correct 3 ms 5208 KB Output is correct
18 Correct 3 ms 5208 KB Output is correct
19 Correct 3 ms 5208 KB Output is correct
20 Correct 3 ms 5208 KB Output is correct
21 Correct 3 ms 5208 KB Output is correct
22 Correct 3 ms 5208 KB Output is correct
23 Correct 3 ms 4952 KB Output is correct
24 Correct 4 ms 5188 KB Output is correct
25 Correct 3 ms 5208 KB Output is correct
26 Correct 3 ms 5208 KB Output is correct
27 Correct 3 ms 5208 KB Output is correct
28 Correct 4 ms 5208 KB Output is correct
29 Correct 20 ms 5208 KB Output is correct
30 Correct 23 ms 5208 KB Output is correct
31 Correct 2 ms 5208 KB Output is correct
32 Correct 3 ms 5208 KB Output is correct
33 Correct 3 ms 5208 KB Output is correct
34 Correct 3 ms 4952 KB Output is correct
35 Correct 6 ms 5208 KB Output is correct
36 Correct 3 ms 5208 KB Output is correct
37 Correct 20 ms 5464 KB Output is correct
38 Correct 20 ms 5464 KB Output is correct
39 Correct 4 ms 5208 KB Output is correct
40 Correct 3 ms 4952 KB Output is correct
41 Correct 3 ms 4952 KB Output is correct
42 Correct 3 ms 4952 KB Output is correct
43 Correct 495 ms 8492 KB Output is correct
44 Correct 841 ms 11608 KB Output is correct
45 Correct 778 ms 11600 KB Output is correct
46 Correct 806 ms 11600 KB Output is correct
47 Correct 709 ms 8536 KB Output is correct
48 Correct 938 ms 11608 KB Output is correct
49 Correct 887 ms 11608 KB Output is correct
50 Correct 855 ms 11608 KB Output is correct
51 Correct 441 ms 5464 KB Output is correct
52 Correct 813 ms 5720 KB Output is correct
53 Correct 819 ms 5720 KB Output is correct
54 Correct 763 ms 5720 KB Output is correct
55 Execution timed out 3018 ms 13580 KB Time limit exceeded
56 Halted 0 ms 0 KB -