oj.uz

Submission #668688

# Submission time Handle Problem Language Result Execution time Memory
668688 2022-12-04T13:14:20 Z hoanghq2004 Digital Circuit (IOI22_circuit) C++17
11 / 100
 3000 ms 21316 KB 
#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include "circuit.h"

using namespace __gnu_pbds;
using namespace std;

template <typename T>
using ordered_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;

const int N = 6e5 + 10;
const int mod = 1e9 + 2022;

int n, m;
vector <int> g[N];
int sz[N];

void dfs(int u) {
    sz[u] = (u >= n ? 1 : g[u].size());
    for (auto v: g[u]) {
        dfs(v);
        sz[u] = 1LL * sz[u] * sz[v] % mod;
    }
}

int c[N], prf[N], suf[N];
int mul[N];

void fix(int u) {
    int num = 0;
    for (auto v: g[u]) c[++num] = v;
    prf[0] = suf[num + 1] = 1;
    for (int i = 1; i <= num; ++i) {
        prf[i] = 1LL * prf[i - 1] * sz[c[i]] % mod;
        suf[i] = 1LL * suf[i + 1] * sz[c[i]] % mod;
    }
    for (int i = 1; i <= num; ++i)
        mul[c[i]] = 1LL * prf[i - 1] * suf[i + 1] % mod;
    for (auto v: g[u]) fix(v);
}

int ans = 0;

void add(int& a, int b) {
    a += b;
    if (a >= mod) a -= mod;
    if (a < 0) a += mod;
}

void Flip(int u) {
    if (c[u]) add(ans, - mul[u]);
    else add(ans, mul[u]);
    c[u] ^= 1;
}

void init(int N, int M, vector<int> P, vector<int> A) {
    n = N, m = M;
    for (int i = 1; i < n + m; ++i) g[P[i]].push_back(i);
    mul[0] = 1;
    dfs(0);
    fix(0);
    memset(c, 0, sizeof(c));
    for (int i = 1; i < n + m; ++i) mul[i] = 1LL * mul[i] * mul[P[i]] % mod;

    for (int i = 0; i < m; ++i) if (A[i]) Flip(i + n);
}

int count_ways(int L, int R) {
    for (int i = L; i <= R; ++i) Flip(i);
    return ans;
}

//
//int main() {
//  int N, M, Q;
//  assert(3 == scanf("%d %d %d", &N, &M, &Q));
//  std::vector<int> P(N + M), A(M);
//  for (int i = 0; i < N + M; ++i) {
//    assert(1 == scanf("%d", &P[i]));
//  }
//  for (int j = 0; j < M; ++j) {
//    assert(1 == scanf("%d", &A[j]));
//  }
//  init(N, M, P, A);
//
//  for (int i = 0; i < Q; ++i) {
//    int L, R;
//    assert(2 == scanf("%d %d", &L, &R));
//    printf("%d\n", count_ways(L, R));
//  }
//  return 0;
//}

Subtask #1
0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 16720 KB Output is correct
2 Correct 9 ms 16720 KB Output is correct
3 Incorrect 9 ms 16720 KB 1st lines differ - on the 1st token, expected: '509', found: '2'
4 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 16720 KB Output is correct
2 Correct 10 ms 16720 KB Output is correct
3 Correct 9 ms 16720 KB Output is correct
4 Correct 9 ms 16720 KB Output is correct
5 Correct 9 ms 16752 KB Output is correct
6 Correct 10 ms 16720 KB Output is correct
7 Correct 11 ms 16752 KB Output is correct
8 Correct 11 ms 16720 KB Output is correct
9 Correct 11 ms 16784 KB Output is correct
10 Correct 9 ms 16860 KB Output is correct
11 Correct 9 ms 16848 KB Output is correct
12 Correct 9 ms 16720 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 16720 KB Output is correct
2 Correct 9 ms 16720 KB Output is correct
3 Incorrect 9 ms 16720 KB 1st lines differ - on the 1st token, expected: '509', found: '2'
4 Halted 0 ms 0 KB -

Subtask #4
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 619 ms 19020 KB Output is correct
2 Correct 826 ms 21308 KB Output is correct
3 Correct 831 ms 21288 KB Output is correct
4 Correct 743 ms 21316 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 619 ms 19020 KB Output is correct
2 Correct 826 ms 21308 KB Output is correct
3 Correct 831 ms 21288 KB Output is correct
4 Correct 743 ms 21316 KB Output is correct
5 Execution timed out 3032 ms 19024 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 16720 KB Output is correct
2 Correct 10 ms 16720 KB Output is correct
3 Correct 9 ms 16720 KB Output is correct
4 Correct 9 ms 16720 KB Output is correct
5 Correct 9 ms 16752 KB Output is correct
6 Correct 10 ms 16720 KB Output is correct
7 Correct 11 ms 16752 KB Output is correct
8 Correct 11 ms 16720 KB Output is correct
9 Correct 11 ms 16784 KB Output is correct
10 Correct 9 ms 16860 KB Output is correct
11 Correct 9 ms 16848 KB Output is correct
12 Correct 9 ms 16720 KB Output is correct
13 Correct 619 ms 19020 KB Output is correct
14 Correct 826 ms 21308 KB Output is correct
15 Correct 831 ms 21288 KB Output is correct
16 Correct 743 ms 21316 KB Output is correct
17 Execution timed out 3032 ms 19024 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 16720 KB Output is correct
2 Correct 9 ms 16720 KB Output is correct
3 Incorrect 9 ms 16720 KB 1st lines differ - on the 1st token, expected: '509', found: '2'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 16720 KB Output is correct
2 Correct 9 ms 16720 KB Output is correct
3 Incorrect 9 ms 16720 KB 1st lines differ - on the 1st token, expected: '509', found: '2'
4 Halted 0 ms 0 KB -